The Neckar ( German pronunciation: [ˈnɛkaʁ] ) is a 362-kilometre-long (225 mi) river in Germany , mainly flowing through the southwestern state of Baden-Württemberg , with a short section through Hesse . The Neckar is a major right tributary of the Rhine . Rising in the Schwarzwald-Baar-Kreis near Schwenningen in the Schwenninger Moos conservation area at a height of 706 m (2,316 ft) above sea level, it passes through Rottweil , Rottenburg am Neckar , Kilchberg , Tübingen , Wernau , Nürtingen , Plochingen , Esslingen , Stuttgart , Ludwigsburg , Marbach , Heilbronn and Heidelberg , before discharging on average 145 m/s (5,100 cu ft/s) of water into the Rhine at Mannheim , at 95 m (312 ft) above sea level, making the Neckar its 4th largest tributary, and the 10th largest river in Germany. Since 1968, the Neckar has been navigable for cargo ships via 27 locks for about 200 kilometres (120 mi) upstream from Mannheim to the river port of Plochingen, at the confluence with the Fils .
134-666: From Plochingen to Stuttgart, the Neckar valley is densely populated and heavily industrialised, with several well-known companies. Between Stuttgart and Lauffen, the Neckar cuts a scenic, meandering, and in many places steep-sided, valley into fossiliferous Triassic limestones and Pleistocene travertine . Along the Neckar's valley in the Odenwald hills many castles can be found, including Hornberg Castle and Guttenberg Castle [ de ; lb ; ru ; uk ] in Haßmersheim ;
268-630: A bolide impact, for which an impact crater containing Manicouagan Reservoir in Quebec , Canada , has been singled out. However, the Manicouagan impact melt has been dated to 214±1 Mya. The date of the Triassic-Jurassic boundary has also been more accurately fixed recently, at 201.4 Mya. Both dates are gaining accuracy by using more accurate forms of radiometric dating, in particular the decay of uranium to lead in zircons formed at time of
402-437: A cold air basin , which means that under cloudless skies the heavier, cold, night air which develops on the sparsely vegetated plateaus and hills, flows into the basin and concentrates there. Especially during the cold season, such "cold lakes" can contribute to the creation of fog while all around on the plateaus the sun shines. The orography of the Neckar valley facilitates such inversive weather conditions. The Neckar valley
536-626: A cosmopolitan distribution . Coelacanths show their highest post- Devonian diversity in the Early Triassic . Ray-finned fishes (actinopterygians) went through a remarkable diversification in the beginning of the Triassic, leading to peak diversity during the Middle Triassic; however, the pattern of this diversification is still not well understood due to a taphonomic megabias . The first stem-group teleosts appeared during
670-424: A 115 km long chain which had been put into the river. Through that, the trip between Mannheim and Heilbronn was shortened to two to three days. On the horse drawn ships it had previously taken five to eight days. But often the water depth was not deep enough. The vernacular name for the chain boats was Neckaresel ("Neckar donkey"). The last chain boat navigation was still done 1933 – 1935 between Neckargerach and
804-555: A chain of mountain ranges stretching from Turkey to Malaysia . Pangaea was fractured by widespread faulting and rift basins during the Triassic—especially late in that period—but had not yet separated. The first nonmarine sediments in the rift that marks the initial break-up of Pangaea, which separated eastern North America from Morocco , are of Late Triassic age; in the United States , these thick sediments comprise
938-486: A downfall to the Neckar navigation. On the one hand – because most parts of the lower Neckar area had fallen to Baden and the free imperial cities of Heilbronn and Esslingen to Württemberg – the many disputes and obstructions of the former small states did not hamper the trade anymore. But during the Continental System the navigation was restricted and ships and material were confiscated. The introduction of
1072-474: A few exposures in the west. During the Triassic peneplains are thought to have formed in what is now Norway and southern Sweden. Remnants of this peneplain can be traced as a tilted summit accordance in the Swedish West Coast . In northern Norway Triassic peneplains may have been buried in sediments to be then re-exposed as coastal plains called strandflats . Dating of illite clay from
1206-471: A long beak-like snout), and Shringasaurus (a horned herbivore which reached a body length of 3–4 metres (9.8–13.1 ft)). One group of archosauromorphs, the archosauriforms , were distinguished by their active predatory lifestyle, with serrated teeth and upright limb postures. Archosauriforms were diverse in the Triassic, including various terrestrial and semiaquatic predators of all shapes and sizes. The large-headed and robust erythrosuchids were among
1340-617: A pseudosuchian. Pseudosuchians were far more ecologically dominant in the Triassic, including large herbivores (such as aetosaurs ), large carnivores (" rauisuchians "), and the first crocodylomorphs (" sphenosuchians "). Aetosaurs were heavily-armored reptiles that were common during the last 30 million years of the Late Triassic until they died out at the Triassic-Jurassic extinction. Most aetosaurs were herbivorous and fed on low-growing plants, but some may have eaten meat. " rauisuchians " (formally known as paracrocodylomorphs ) were
1474-468: A royal theater, a market house, the Wilhelma and Rosenstein palaces, and extensive industry including wool-spinning , dyeing , steelmaking , and construction of machinery . There were then about 40 mineral springs, which were considered beneficial for " dyspepsia and weakness of the nervous system ", as well as "diseases of the throat". Cannstatt was the site of Gottlieb Daimler 's invention of
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#17327730422561608-458: A short period of time, becoming extinct about 220 million years ago. They were exceptionally abundant in the middle of the Triassic, as the primary large herbivores in many Carnian-age ecosystems. They sheared plants with premaxillary beaks and plates along the upper jaw with multiple rows of teeth. Allokotosaurs were iguana-like reptiles, including Trilophosaurus (a common Late Triassic reptile with three-crowned teeth), Teraterpeton (which had
1742-449: A strandflat of Bømlo , southern Norway, have shown that landscape there became weathered in Late Triassic times ( c. 210 million years ago) with the landscape likely also being shaped during that time. Eustatic sea level in the Triassic was consistently low compared to the other geological periods. The beginning of the Triassic was around present sea level, rising to about 10–20 metres (33–66 ft) above present-day sea level during
1876-585: A supercontinent has less shoreline compared to a series of smaller continents, Triassic marine deposits are relatively uncommon on a global scale. A major exception is in Western Europe , where the Triassic was first studied. The northeastern margin of Gondwana was a stable passive margin along the Neo-Tethys Ocean, and marine sediments have been preserved in parts of northern India and Arabia . In North America , marine deposits are limited to
2010-566: A tangle of meanders, slings, old waters and cut of arms between the Rhine in the west and the foot of the Odenwald in the east until it finally entered the Rhine only north of Darmstadt at Trebur ; roughly 50 km north of today's confluence in Mannheim. On large stretches you can still see it on aerial photos. In the 13th century, the confluence was south of Mannheim. A great flood changed
2144-468: Is a recent study of North American faunas. In the Petrified Forest of northeast Arizona there is a unique sequence of late Carnian-early Norian terrestrial sediments. An analysis in 2002 found no significant change in the paleoenvironment. Phytosaurs , the most common fossils there, experienced a change-over only at the genus level, and the number of species remained the same. Some aetosaurs ,
2278-597: Is drained today. Afterward, the Neckar joins with the Eschach coming from the eastern slopes of the Black Forest which is much more water bearing. Its main tributary Glasbach, which originates at the Brogen, is hydrographically seen as the main river of the Neckar river system. With this junction above Rottweil the Neckar enters a narrow, wooded valley and for the next 80 km it bores its way towards north between
2412-514: Is known for its wine cultivation climate and the cultivation of Trollinger , Lemberger , Kerner , Müller-Thurgau amongst other locally grown grape varieties. Wine cultivation has receded over the 20th century and cultivation of the "Württemberger Wein" is mostly restricted to the south-facing slopes with high radiation gain in the Neckar valley and its side valleys, as wine cultivation is labor-intensive and in Württemberg competitive only in
2546-508: Is likely a paraphyletic group rather than a true clade. Tanystropheids were a family of protorosaurs which elevated their neck size to extremes, with the largest genus Tanystropheus having a neck longer than its body. The protorosaur family Sharovipterygidae used their elongated hindlimbs for gliding. Other archosauromorphs, such as rhynchosaurs and allokotosaurs , were mostly stocky-bodied herbivores with specialized jaw structures. Rhynchosaurs, barrel-gutted herbivores, thrived for only
2680-469: Is no evidence of glaciation at or near either pole; in fact, the polar regions were apparently moist and temperate , providing a climate suitable for forests and vertebrates, including reptiles. Pangaea's large size limited the moderating effect of the global ocean; its continental climate was highly seasonal, with very hot summers and cold winters. The strong contrast between the Pangea supercontinent and
2814-615: Is notable for its caverns and fossils . In 746 Carloman, Mayor of the Palace of Austrasia , called a council at Cannstatt, arrested and executed virtually all nobles of the Alemanni . This marks the transfer of power from the Alemanni to the emerging Carolingians. The present name first appeared as the seat of a court held by Charlemagne in the 8th century while trying the rebellious dukes of Alemannia and Bavaria . Cannstatt
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#17327730422562948-460: Is superimposed by 22 sea level drop events widespread in the geologic record, mostly of minor (less than 25-metre (82 ft)) and medium (25–75-metre (82–246 ft)) magnitudes. A lack of evidence for Triassic continental ice sheets suggest that glacial eustasy is unlikely to be the cause of these changes. The Triassic continental interior climate was generally hot and dry, so that typical deposits are red bed sandstones and evaporites . There
3082-510: The Anderssen Werft ("Anderssen shipyard"). It was put into service in 1925 and christened "Gebrüder Götz". The motor cargo ship was operated by the shipping company drove for the shipping company Ludwig und Jakob Götz, founded in 1920. One of the best known shipping companies on the Neckar, which was also involved in the upgrading of the river to a heavy shipping waterway. In 1946 the first transportation order for coal after
3216-831: The Cannstatter Wasen and Cannstatter Volksfest beer festivals , the MHPArena ( VfB Stuttgart ), the Hanns-Martin-Schleyer-Halle , and the Porsche-Arena . Bad Cannstatt's name originates from a Castra stativa , Cannstatt Castrum , the massive Roman Castra that was erected on the hilly ridge in AD 90 to protect the valuable river crossing and local trade. In the past, Bad Cannstatt has been known as simply Cannstatt or Kannstatt , Cannstadt , Canstatt , Kanstatt , and Condistat . Its name
3350-578: The Carnian (early part of the Late Triassic), some advanced cynodonts gave rise to the first mammals . During the Triassic, archosaurs displaced therapsids as the largest and most ecologically prolific terrestrial amniotes. This "Triassic Takeover" may have contributed to the evolution of mammals by forcing the surviving therapsids and their mammaliaform successors to live as small, mainly nocturnal insectivores . Nocturnal life may have forced
3484-673: The Jurassic Period 201.4 Mya. The Triassic is the first and shortest period of the Mesozoic Era and the seventh period of the Phanerozoic Eon . Both the start and end of the period are marked by major extinction events . The Triassic Period is subdivided into three epochs: Early Triassic , Middle Triassic and Late Triassic . The Triassic began in the wake of the Permian–Triassic extinction event , which left
3618-614: The Jurassic , when the temnospondyls had become very rare. Most of the Reptiliomorpha , stem-amniotes that gave rise to the amniotes, disappeared in the Triassic, but two water-dwelling groups survived: Embolomeri that only survived into the early part of the period, and the Chroniosuchia , which survived until the end of the Triassic. The Permian–Triassic extinction devastated terrestrial life. Biodiversity rebounded as
3752-749: The Kocher with the highest average water drainage and the longest one, the Jagst . The Kocher tributary Lein is at its end not only longer than the Kocher, but also more water-abundant. Therefore, according to hydrographic convention, the Lein would have to be regarded as the main river of the Kocher water system, making it with then 201 kilometers the longest tributary of the Neckar. Named from source to mouth. According to LUBW-BRSWEB, LUBW-FG10, LUBW-GEZG and TK25. Drainage area mostly according to LUBW-GEZG, else measured on
3886-568: The Lake Lugano region of northern Italy and southern Switzerland , was in Middle Triassic times a lagoon behind reefs with an anoxic bottom layer, so there were no scavengers and little turbulence to disturb fossilization, a situation that can be compared to the better-known Jurassic Solnhofen Limestone lagerstätte . The remains of fish and various marine reptiles (including the common pachypleurosaur Neusticosaurus , and
4020-399: The MHPArena , the Hanns-Martin-Schleyer-Halle or the Cannstatter Wasen , the second-largest fair of Germany. The term Wasen gives a clue, that there used to be a floodplain on which the fair was held. Distinctive points in the industrial landscape of the Neckar valley are the high chimneys of the coal-fired power station Altbach/Deizisau and Heilbronn as well as the assembly halls of
4154-658: The Newark Supergroup . Rift basins are also common in South America, Europe, and Africa. Terrestrial environments are particularly well-represented in the South Africa, Russia, central Europe, and the southwest United States. Terrestrial Triassic biostratigraphy is mostly based on terrestrial and freshwater tetrapods, as well as conchostracans ("clam shrimps"), a type of fast-breeding crustacean which lived in lakes and hypersaline environments. Because
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4288-474: The Olenekian and Anisian of Gondwana . Both kannemeyeriiform dicynodonts and gomphodont cynodonts remained important herbivores during much of the period. Therocephalians included both large predators ( Moschorhinus ) and herbivorous forms ( bauriids ) until their extinction midway through the period. Ecteniniid cynodonts played a role as large-sized, cursorial predators in the Late Triassic. During
4422-531: The Second World War on the Neckar was awarded and shipped by Johann Friedrich Boßler with his motor cargo ship Elisabeth. Triassic The Triassic ( / t r aɪ ˈ æ s ɪ k / try- ASS -ik ; sometimes symbolized 🝈 ) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya ), to the beginning of
4556-707: The South German Scarplands . For a long time it flowed on the high plains of the different Gäu Plateaus created through the hard chalks of the Muschelkalk . At Horb the river was redirected to the northeast due to the rift structure of the so-called Swabian Lineament , which lies roughly parallel to the escarpment of the Swabian Jura . Following that the Neckar cut into the Muschelkalk plateau between Rottweil and Rottenburg as well as
4690-735: The surviving species repopulated empty terrain, but these were short-lived. Diverse communities with complex food-web structures took 30 million years to reestablish. Archosauromorph reptiles, which had already appeared and diversified to an extent in the Permian Period, exploded in diversity as an adaptive radiation in response to the Permian-Triassic mass extinction. By the Early Triassic, several major archosauromorph groups had appeared. Long-necked, lizard-like early archosauromorphs were known as protorosaurs , which
4824-463: The temnospondyls , giant aquatic predators that had survived the end-Permian extinction and saw a new burst of diversification in the Triassic, before going extinct by the end; however, early crown-group lissamphibians (including stem-group frogs , salamanders and caecilians ) also became more common during the Triassic and survived the extinction event. The earliest known neopterygian fish, including early holosteans and teleosts , appeared near
4958-524: The thecodonts ) disappeared, as did most of the large labyrinthodont amphibians, groups of small reptiles, and most synapsids. Some of the early, primitive dinosaurs also became extinct, but more adaptive ones survived to evolve into the Jurassic. Surviving plants that went on to dominate the Mesozoic world included modern conifers and cycadeoids. The cause of the Late Triassic extinction is uncertain. It
5092-437: The traversodont cynodonts—were much reduced in the northern half of Pangaea ( Laurasia ). These extinctions within the Triassic and at its end allowed the dinosaurs to expand into many niches that had become unoccupied. Dinosaurs became increasingly dominant, abundant and diverse, and remained that way for the next 150 million years. The true "Age of Dinosaurs" is during the following Jurassic and Cretaceous periods, rather than
5226-832: The Anisian to Ladinian of the Tethysian domain, and from the Carnian and Rhaetian of a larger area that includes also the Boreal domain (e.g., Svalbard Islands), the North American continent, the South China block and Argentina . The best-studied of such episodes of humid climate, and probably the most intense and widespread, was the Carnian Pluvial Event . The Early Triassic was the hottest portion of
5360-689: The Bavarian expanded its rights and privileges to equality with Esslingen . Its 15th-century cathedral was dedicated to St Uffo . In 1755, the Great Lisbon earthquake caused the town hall to subside about 3 feet (1 m). During the wars which followed the French Revolution , the town was the site on 21 July 1796 of a French victory over the Austrian Empire . In the 19th century, it boasted an attractive town hall,
5494-405: The Carnian and include early sauropodomorphs and theropods. Most Triassic dinosaurs were small predators and only a few were common, such as Coelophysis , which was 1 to 2 metres (3.3 to 6.6 ft) long. Triassic sauropodomorphs primarily inhabited cooler regions of the world. The large predator Smok was most likely also an archosaur, but it is uncertain if it was a primitive dinosaur or
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5628-787: The Daimler-engine plant in Untertürkheim and the Audi plant in Neckarsulm. Along the Neckar's valley in the Odenwald hills many castles can be found, including Hornberg Castle and Guttenberg Castle in Haßmersheim ; the now-mothballed Obrigheim Nuclear Power Plant and the active Neckarwestheim Nuclear Power Plant are also located there. In contrast to the plains, the mostly steep slopes are often forested and in forestry use. The sun-exposed south-facing sites are frequently used for vineyards and are terraced with dry walls. There
5762-563: The Early Triassic, forming small patches of reefs of modest extent compared to the great reef systems of Devonian or modern times. At the end of the Carnian, a reef crisis occurred in South China. Serpulids appeared in the Middle Triassic. Microconchids were abundant. The shelled cephalopods called ammonites recovered, diversifying from a single line that survived the Permian extinction. Bivalves began to rapidly diversify during
5896-402: The Early Triassic, while others (e.g. capitosaurs ) remained successful throughout the whole period, or only came to prominence in the Late Triassic (e.g. Plagiosaurus , metoposaurs ). The first Lissamphibians (modern amphibians) appear in the Triassic, with the progenitors of the first frogs already present by the Early Triassic. However, the group as a whole did not become common until
6030-562: The Early and Middle Triassic. Sea level rise accelerated in the Ladinian, culminating with a sea level up to 50 metres (164 ft) above present-day levels during the Carnian. Sea level began to decline in the Norian, reaching a low of 50 metres (164 ft) below present sea level during the mid-Rhaetian. Low global sea levels persisted into the earliest Jurassic. The long-term sea level trend
6164-619: The Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles , especially archosaurs , were the chief terrestrial vertebrates during this time. A specialized group of archosaurs, called dinosaurs , first appeared in
6298-573: The Electoral Palatinate signed a trade agreement in order to start up the Neckar navigation between Mannheim and Cannstatt during a time of economical rise in the late 18th century. In 1782 the previous two and the free imperial city of Heilbronn agreed upon facilitations in the Neckar trade but which were only of administrative nature. The Neckar still remained blocked at the weir in Heilbronn. The Napoleonic times around 1800 brought
6432-613: The Jurassic. There were many types of marine reptiles. These included the Sauropterygia , which featured pachypleurosaurus and nothosaurs (both common during the Middle Triassic, especially in the Tethys region), placodonts , the earliest known herbivorous marine reptile Atopodentatus , and the first plesiosaurs . The first of the lizardlike Thalattosauria ( askeptosaurs ) and the highly successful ichthyopterygians , which appeared in Early Triassic seas, soon diversified. By
6566-432: The Late Triassic but did not become dominant until the succeeding Jurassic Period. Archosaurs that became dominant in this period were primarily pseudosuchians , relatives and ancestors of modern crocodilians , while some archosaurs specialized in flight, the first time among vertebrates, becoming the pterosaurs . Therapsids , the dominant vertebrates of the preceding Permian period, saw a brief surge in diversification in
6700-600: The Latest Olenekian Cooling (LOC), from 248 to 247 Ma, temperatures cooled by about 6 °C. The Middle Triassic was cooler than the Early Triassic, with temperatures falling over most of the Anisian, with the exception of a warming spike in the latter portion of the stage. From 242 to 233 Ma, the Ladinian-Carnian Cooling (LCC) ensued. At the beginning of the Carnian, global temperatures continued to be relatively cool. The eruption of
6834-587: The Mannheimer Stapels ("Mannheim stable") in 1808 meant that the merchants of Mannheim gained control over almost all Neckar trade. During the German Campaign of 1813 only small ships travelled on the Neckar, mainly military transports. The Congress of Vienna demanded the freedom of traffic on the Neckar and Rhine rivers in 1814/1815. The 550-meter-long Wilhelmskanal ("Wilhelms canal") was constructed in Heilbronn from 1819 to 1821. The reason
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#17327730422566968-486: The Middle Triassic, becoming highly abundant in the oceans. Aquatic insects rapidly diversified during the Middle Triassic, with this time interval representing a crucial diversification for Holometabola , the clade containing the majority of modern insect species. In the wake of the Permian-Triassic mass extinction event , the fish fauna was remarkably uniform, with many families and genera exhibiting
7102-618: The Middle Triassic, some ichthyopterygians were achieving very large body masses. Among other reptiles, the earliest turtles , like Proganochelys and Proterochersis , appeared during the Norian Age (Stage) of the Late Triassic Period. The Lepidosauromorpha , specifically the Sphenodontia , are first found in the fossil record of the earlier Carnian Age, though the earliest lepidosauromorphs likely occurred in
7236-452: The Neckar have an additional role as water reservoir and are in many places used for drinking water production. The paths usually went over the heights and only crossed the valleys where there were fords over the Neckar. This changed with the onset of industrialisation in the 19th century. It brought fundamental conflicts regarding the land usage of the flat valley plain. Large even spaces became sought after for industrial sites. The Neckar
7370-418: The Neckar near Tübingen. The river's course provides a popular route for cyclists , especially during the summer months. The slopes of the Neckar are preferred areas for high-level residential areas because they allow wide, unobstructed views. The diverse usage of raw water and waterway , as well for the production of hydropower brought with it substantial interventions into the ecological structure of
7504-529: The Neckar river on October 26, 1899. The wood from the eastern Northern Black Forest was shipped through the Neckar and then Rhine up to Holland . Because of the developing seafaring the shipbuilding had a large demand for wood. The firewood from the Schurwald was combined to up to 260 Meter long rafts in Plochingen. The Neckar gained importance as a waterway in the middle of the 16th century due to
7638-417: The Neckar), the mouth of the Fils coming down from the east, from the Swabian Jura. Beginning from here the river has been expanded into a canalised waterway. It lies up to Stuttgart in a wide, urbanized meadow, which has been built over with industry and is cut through by transportation structures. Only around the Cannstatter valley bend for a short distance it is interspersed by large park areas. Here again
7772-415: The Neckar. After the old Neckar was cut off in early 1869, it followed the path of the new Neckar breakthrough, which was finished by 1880. Narrow and widening valleys alternate along the Neckar's course. The narrows are mostly deepenings into the Muschelkalk plateau and the Buntsandstein below. Widenings developed in the area of morphologically soft clay and marl. Wide valley meadows also developed through
7906-450: The Neckar. In the Odenwald narrow ravines and gorges lead into the Neckar from both sides, as for example, the Wolfschlucht and the Margarethenschlucht. Due to the risk of flooding the valley plains remained unsettled for a long time, but the nutritious and, due to its good structure, very arable land was intensively used for agriculture, and to a large degree the valley plains are still used agriculturally today. The fertile soil allows
8040-450: The Permian extinction, Archaeplastida (red and green algae) had been the major marine phytoplanktons since about 659–645 million years ago, when they replaced marine planktonic cyanobacteria , which first appeared about 800 million years ago, as the dominant phytoplankton in the oceans. In the Triassic, secondary endosymbiotic algae became the most important plankton. In marine environments , new modern types of corals appeared in
8174-419: The Permian. The Procolophonidae , the last surviving parareptiles , were an important group of small lizard-like herbivores. The drepanosaurs were a clade of unusual, chameleon-like arboreal reptiles with birdlike heads and specialised claws. Three therapsid groups survived into the Triassic: dicynodonts , therocephalians , and cynodonts . The cynodont Cynognathus was a characteristic top predator in
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#17327730422568308-430: The Rhine river. The Rheinschiffahrtsakte ("Mannheim Act") from 1831 and in consequence of it the Neckarschiffahrtsordnung ("Neckar navigation regulations") from 1832 brought, through simplified regulations and tariffs a significant rise for the navigation. But because of its shallows and rapids the river was considered one of the most dangerous in Germany. In 1836 the Neckarschiffergilde ("Neckar shipping guild")
8442-411: The Swabian Jura ( Albtrauf ). Near Weitingen the valley is traversed by the 127 m high Neckar Viaduct of the A 81. At Rottenburg it enters the wider valley of Tübingen. After Tübingen the valley narrows again. From here onwards, the surrounding elevated grounds are considerably more densely populated. Middle reaches At Plochingen the Neckar turns sharply north west at the "Neckarknie" (knee of
8576-408: The Triassic (teleosts are by far the most diverse group of fish today). Predatory actinopterygians such as saurichthyids and birgeriids , some of which grew over 1.2 m (3.9 ft) in length, appeared in the Early Triassic and became widespread and successful during the period as a whole. Lakes and rivers were populated by lungfish (Dipnoi), such as Ceratodus , which are mainly known from
8710-417: The Triassic was mostly hot and dry, with deserts spanning much of Pangaea's interior. However, the climate shifted and became more humid as Pangaea began to drift apart. The end of the period was marked by yet another major mass extinction, the Triassic–Jurassic extinction event , that wiped out many groups, including most pseudosuchians, and allowed dinosaurs to assume dominance in the Jurassic. The Triassic
8844-416: The Triassic, enlarging the Neo-Tethys Ocean which formed in their wake. At the same time, they forced the Paleo-Tethys Ocean to shrink as it was being subducted under Asia. By the end of the Triassic, the Paleo-Tethys Ocean occupied a small area and the Cimmerian terranes began to collide with southern Asia. This collision, known as the Cimmerian Orogeny , continued into the Jurassic and Cretaceous to produce
8978-428: The Triassic, with dicynodonts and cynodonts quickly becoming dominant, but they declined throughout the period with the majority becoming extinct by the end. However, the first stem-group mammals ( mammaliamorphs ), themselves a specialized subgroup of cynodonts, appeared during the Triassic and would survive the extinction event, allowing them to radiate during the Jurassic. Amphibians were primarily represented by
9112-407: The Triassic. Bad Cannstatt Bad Cannstatt , also called Cannstatt (until July 23, 1933) or Kannstadt (until 1900 ), is one of the outer stadtbezirke , or city boroughs, of Stuttgart in Baden-Württemberg , Germany . Bad Cannstatt is the oldest and most populous of Stuttgart's boroughs, and one of the most historically significant towns in the area of Stuttgart. The town is home to
9246-485: The Wrangellia Large Igneous Province around 234 Ma caused abrupt global warming, terminating the cooling trend of the LCC. This warming was responsible for the Carnian Pluvial Event and resulted in an episode of widespread global humidity. The CPE ushered in the Mid-Carnian Warm Interval (MCWI), which lasted from 234 to 227 Ma. At the Carnian-Norian boundary occurred a positive δ C excursion believed to signify an increase in organic carbon burial. From 227 to 217 Ma, there
9380-413: The background map. Distances preferably according to the data sets of the LUBW-FG10, rarely measured on the background map. Namen preverably according to TK25. The Neckar touches, from the source to the mouth, the following districts, cities and municipalities: The primal Neckar started off as an escarpment riverlet due to the slow rise of the Black Forest and the connected slow erosive retraction of
9514-450: The barrage Kochendorf. The world's first motorboat made during the summer of 1886 by Gottlieb Daimler and Wilhelm Maybach was named "Neckar" when their Standuhr ( grandfather clock ) petrol engine was tested on the river near Bad Cannstatt. The motorized cargo navigation began on the Neckar in 1925. The first motor cargo ship on the river was ordered by the brothers Ludwig (1887–1955) and Jakob Götz (1890–1977) already in 1924 at
9648-415: The beginning of the Triassic, and quickly diversified to become among the dominant groups of fish in both freshwater and marine habitats. The vast supercontinent of Pangaea dominated the globe during the Triassic, but in the latest Triassic ( Rhaetian ) and Early Jurassic it began to gradually rift into two separate landmasses: Laurasia to the north and Gondwana to the south. The global climate during
9782-481: The beginning upper German trade. Despite many interventions in the river course in order to improve navigation, the river which had a towpath , was because of dangerous rapids and shallows only navigable for smaller barges and this mostly only up to Heilbronn. Making the upper Neckar navigable was then pushed ahead by Christoph, Duke of Württemberg who got the necessary permission from Emperor Karl V. in 1553. The city of Heilbronn still insisted on its rights so that
9916-564: The best sites. Various excavations of harbor installations and findings lead to the conclusion that the Neckar navigation already existed during the Roman Age in the first century. Especially on the lower Neckar. Main purpose was probably the transportation of construction material for the Limes and provisions. Later the Neckar navigation was probably restarted by the Franks. Starting from 1100
10050-455: The bizarre long-necked archosauromorph Tanystropheus ), along with some terrestrial forms like Ticinosuchus and Macrocnemus , have been recovered from this locality. All these fossils date from the Anisian and Ladinian ages (about 242 Ma ago). The Triassic Period ended with a mass extinction, which was particularly severe in the oceans; the conodonts disappeared, as did all
10184-517: The city better from the more frequent flooding through overflow of the duct, the river received more space through a new, mostly open riverbed. This riverbed runs largely on the newly constructed horticultural show ground, which was used as the occasion for the remodeling. Headwaters Up to shortly before Rottweil the Neckar is only a small rivulet on the Baar plateau. In Deißlingen -Lauffen it has its only, 4 meters (13 ft) high, waterfall which
10318-474: The city, lastly in 1784 and 1789. The situation was then relaxed through the straightening of the river bed by means of for breakthroughs in combination with the lowering of the river bed as well as fortifications and dams. After consolidation of the situation in the 18th century, electoral palatinate market ships regularly travelled on the lower Neckar river. On the upper Neckar boats regularly travelled between Heilbronn and Cannstatt for several years around 1720;
10452-589: The continuous traffic on the river was for several centuries blocked. An annoyance for the neighbours. The permission of passage for raftsman therefore had to be determined contractually. In 1342 Württemberg, the Markgrafschaft Baden and the free imperial city signed an agreement for the opening of the Neckar for rafts between Besigheim and Heilbronn. A treaty from 1476 between the free imperial city Esslingen, Württemberg and Austria fixed free rafting trade as well. The last raft went through Tübingen down
10586-412: The corresponding rocks are referred to as Lower, Middle, or Upper Triassic. The faunal stages from the youngest to oldest are: During the Triassic, almost all the Earth's land mass was concentrated into a single supercontinent , Pangaea ( lit. ' entire land ' ). This supercontinent was more-or-less centered on the equator and extended between the poles, though it did drift northwards as
10720-463: The course of the Neckar in around 1275. Since then it enters the Rhine north of the city. The last change here took place in connection with the straightening of the Rhine by the Friesenheimer breakthrough west of today's Friesenheimer Island. Previously the Neckar entered the Rhine in the area of today's industrial port of Mannheim . Its new riverbed was also the reason for the relocation of
10854-578: The cultivation area of the Württemberg wine region . The vineyards at the lower reaches from Heinsheim to Heidelberg are part of the Baden wine region . Until the end of the 19th century, vineyard cultivation was more extensive in the Neckar valley including unfavorable sites. Today these have been abandoned and gone fallow, reclaimed by wildlife. One example is the southern slopes of the Spitzberg above
10988-492: The cultivation of lucrative specialty crops like vegetables or hops , for example, between Rottenburg and Tübingen. Gravel pit quarrying in the valley plains takes away agricultural land, but created large lakes, nowadays used for recreational purposes. These borrow pits also became habitat for birds, amphibians and aquatic creatures. Such large borrow pits can be found for example near Kirchentellinsfurt and between Freiberg am Neckar and Pleidelsheim . The gravel bodies of
11122-506: The dental plates, abundant in the fossils record. Hybodonts , a group of shark-like cartilaginous fish , were dominant in both freshwater and marine environments throughout the Triassic. Last survivors of the mainly Palaeozoic Eugeneodontida are known from the Early Triassic. Temnospondyl amphibians were among those groups that survived the Permian–Triassic extinction. Once abundant in both terrestrial and aquatic environments,
11256-428: The dominant carnivores in the early Triassic. Phytosaurs were a particularly common group which prospered during the Late Triassic. These long-snouted and semiaquatic predators resemble living crocodiles and probably had a similar lifestyle, hunting for fish and small reptiles around the water's edge. However, this resemblance is only superficial and is a prime-case of convergent evolution. True archosaurs appeared in
11390-405: The early Triassic, splitting into two branches: Avemetatarsalia (the ancestors to birds) and Pseudosuchia (the ancestors to crocodilians). Avemetatarsalians were a minor component of their ecosystems, but eventually produced the earliest pterosaurs and dinosaurs in the Late Triassic. Early long-tailed pterosaurs appeared in the Norian and quickly spread worldwide. Triassic dinosaurs evolved in
11524-640: The entire Phanerozoic, seeing as it occurred during and immediately after the discharge of titanic volumes of greenhouse gases from the Siberian Traps. The Early Triassic began with the Permian-Triassic Thermal Maximum (PTTM) and was followed by the brief Dienerian Cooling (DC) from 251 to 249 Ma, which was in turn followed by the Latest Smithian Thermal Maximum (LSTT) around 249 to 248 Ma. During
11658-499: The expansion of the navigation to the Württembergian Plochingen further up the river failed due to the free imperial city of Esslingen . While the electoral palatinate shipping on the lower Neckar was quite successful, the shipping on the upper Neckar was soon stopped again as the river was not suitably enough expanded for a navigation and moreover no funding was available for the further upgrading. Württemberg and
11792-480: The extinct family Cheirolepidiaceae , which first appeared in the Late Triassic, and would be prominent throughout most of the rest of the Mesozoic. No known coal deposits date from the start of the Triassic Period. This is known as the Early Triassic "coal gap" and can be seen as part of the Permian–Triassic extinction event . Possible explanations for the coal gap include sharp drops in sea level at
11926-540: The first petroleum-fueled automobile in 1886 and housed an automotive factory before the First World War . Around that time, it also had notable railway and chemical works and a brewery. Cannstatt was incorporated into Stuttgart in 1904. Of the 19 surviving mineral springs, 11 are recognized as state wells. In the world, it is now second to only Újbuda in Budapest , Hungary , in scale. The Mombach spring
12060-614: The former north western extent of the Danube river network is the Eschach running from north west to south east, hence towards the primal Danube. With the retraction of the escarpment, it was tapped by a Neckar tributary and redirected by about 90° to the east. Considering river history, it was never a headstream of the Neckar. Until 2000 years ago the Neckar flowed through a pastureland in the Oberrheinische Tiefebene in
12194-521: The global ocean triggered intense cross-equatorial monsoons , sometimes referred to as the Pangean megamonsoons . The Triassic may have mostly been a dry period, but evidence exists that it was punctuated by several episodes of increased rainfall in tropical and subtropical latitudes of the Tethys Sea and its surrounding land. Sediments and fossils suggestive of a more humid climate are known from
12328-427: The hard Muschelkalk. The best known cut-off meander spur is the one at Lauffen ; it cut through in historical times and created a waterfall (historic: Laufen ). At the cutbanks one can find rocks, formed by the limestone of the upper Muschelkalk. For example, the rock gardens at Hessigheim . They lie on the marls and clays of the middle Muschelkalks and can sag in whole stone packages, so-called Schollen , down towards
12462-515: The heavy barges on the towpath upriver. The reason was that the steam ships were not yet strong enough herefore. The competition of rail transport made steam ships as well as towing barges gradually uneconomic in the second half of the 19th century. Rafting on the other hand kept its importance, but adapted to the age of the railroad. Because trunks from the Black forest did more and more go by train to Heilbronn and only from there continued their trip on
12596-420: The impact. So, the evidence suggests the Manicouagan impact preceded the end of the Triassic by approximately 10±2 Ma. It could not therefore be the immediate cause of the observed mass extinction. The number of Late Triassic extinctions is disputed. Some studies suggest that there are at least two periods of extinction towards the end of the Triassic, separated by 12 to 17 million years. But arguing against this
12730-401: The keystone predators of most Triassic terrestrial ecosystems. Over 25 species have been found, including giant quadrupedal hunters, sleek bipedal omnivores, and lumbering beasts with deep sails on their backs. They probably occupied the large-predator niche later filled by theropods. "Rauisuchians" were ancestral to small, lightly-built crocodylomorphs, the only pseudosuchians which survived into
12864-527: The last of his distinctive knees at Eberbach it turns west, enters at Hirschhorn for a short distance Hessian territory and is then up to Neckarsteinach on long parts the border between Baden-Württemberg and Hessen. At Neckargemünd the Elsenz enters from the left, its lower reaches using a part of the Neckars former Maurer river loop which extended far south. At the city of Heidelberg , which borders in
12998-415: The local red wine grapes Trollinger , Schwarzriesling and Lemberger are cultivated, which are also traditionally mostly drunk in Württemberg . Especially the middle Neckar around Besigheim and Lauffen is characterized by in parts extremely steep vineyards, which can be cultivated only by hand. The vine terrasses at the Neckar together with the drainage area of the tributaries deliver the largest part of
13132-545: The mammaliaforms to develop fur and a higher metabolic rate . Two Early Triassic lagerstätten (high-quality fossil beds), the Dienerian aged Guiyang biota and the earliest Spathian aged Paris biota stand out due to their exceptional preservation and diversity . They represent the earliest lagerstätten of the Mesozoic era and provide insight into the biotic recovery from the Permian-Triassic mass extinction event. The Monte San Giorgio lagerstätte, now in
13266-453: The marine reptiles except ichthyosaurs and plesiosaurs . Invertebrates like brachiopods and molluscs (such as gastropods ) were severely affected. In the oceans, 22% of marine families and possibly about half of marine genera went missing. Though the end-Triassic extinction event was not equally devastating in all terrestrial ecosystems, several important clades of crurotarsans (large archosaurian reptiles previously grouped together as
13400-458: The modern Pacific Ocean . Practically all deep-ocean crust present during the Triassic has been recycled through the subduction of oceanic plates, so very little is known about the open ocean from this time period. Most information on Panthalassan geology and marine life is derived from island arcs and rare seafloor sediments accreted onto surrounding land masses, such as present-day Japan and western North America. The eastern edge of Pangea
13534-710: The name in German is masculine (der Neckar). Drainage area The headwater region of the Neckar lies in the Schwenninger Moos between Schwenningen and Bad Dürrheim . The traditionally marked spring of the river lies in the city park Möglingshöhe in Schwenningen. Prior to the Landesgartenschau Villingen-Schwenningen 2010, the Neckar flowed in the city center of Schwenningen mostly underground. In order to protect
13668-430: The next most common tetrapods, and early dinosaurs, passed through unchanged. However, both phytosaurs and aetosaurs were among the groups of archosaur reptiles completely wiped out by the end-Triassic extinction event. It seems likely then that there was some sort of end-Carnian extinction, when several herbivorous archosauromorph groups died out, while the large herbivorous therapsids —the kannemeyeriid dicynodonts and
13802-705: The north the Odenwald and at the south the Königstuhl (Odenwald) , the Neckarvalley is cut in the deepest by over 400m through mountains. After passing the Heidelberger historic city, the river enters the wide Upper Rhine Plain and after further about 25 kilometers in Mannheim roughly at its middle it enters the Rhine from the right. The largest tributaries of the Neckar are the Enz with the largest drainage area,
13936-401: The now-mothballed Obrigheim Nuclear Power Plant and the active Neckarwestheim Nuclear Power Plant are also located there. Traditionally the fertile plains have been intensively used for agriculture and its steep valley sides as vineyards . The name Neckar may be derived from Nicarus and Neccarus from Celtic Nikros , meaning wild water or wild fellow . The grammatical gender of
14070-402: The order Isoetales (which contains living quillworts ), rose to prominence due to the environmental instability following the Permian-Triassic extinction, with one particularly notable example being the genus Pleuromeia , which grew in columnar like fashion, sometimes reaching a height of 2 metres (6.6 ft). The relevance of lycophytes declined from the Middle Triassic onwards, following
14204-440: The other two of its large tributaries: First its water-richest tributary, the Kocher and then the officially longest, the Jagst , in total roughly doubling its discharge. Lower reaches Between Bad Wimpfen with its Stauferpfalz and Mosbach , the Neckar enters the Odenwald , where, again in a gorge-like valley, high, elevated, forested slopes line its riverside and especially on the right side, deeply cut valleys enter. At
14338-504: The period progressed. Southern Pangea, also known as Gondwana , was made up by closely-appressed cratons corresponding to modern South America , Africa , Madagascar , India , Antarctica , and Australia . North Pangea, also known as Laurussia or Laurasia , corresponds to modern-day North America and the fragmented predecessors of Eurasia . The western edge of Pangea lay at the margin of an enormous ocean, Panthalassa ( lit. ' entire sea ' ), which roughly corresponds to
14472-427: The primal lone to the primal Danube . Another influence on this river area was the Schurwald , a dissected cuesta of the filder rift, working as a river guideline. Today's lower reaches used to be those of the primal Enz . Until, through the erosive retraction of a tributary of the primal Enz near Besigheim, the Neckar river network was tapped. That is how the Enz became a tributary of the Neckar. Another trace of
14606-655: The ranges of the Black Forest and the Swabian Jura . It has created two cut-off meander spurs at the Neckarburg which is spanned by the Neckarburgbrücke. Further down the river lies high above the river the old town of Oberndorf on a Calcareous sinter terrace , which fills one of the bowl-like side valleys. At Horb it turns from the Gäu Plateau towards north east and then follows the western side of
14740-487: The return of more stable environmental conditions. While having first appeared during the Permian, the extinct seed plant group Bennettitales first became a prominent element in global floras during the Late Triassic, a position they would hold for much of the Mesozoic. In the Southern Hemisphere landmasses of Gondwana, the tree Dicroidium , an extinct " seed fern " belong to the order Corystospermales
14874-652: The right north of Marbach the Murr . After passing the Hessigheimer Felsengärten the water-rich Enz enters from the left at Besigheim . The former rapid at the Lauffener avulsion of the meander is today under water due to the canalization. In the Lowlands around Heilbronn the Neckar runs again through a wide meadow an open landscape. At Bad Friedrichshall it takes up within only two kilometers
15008-487: The river was blocked at Heilbronn which meant that the upper Neckar and therefore Württemberg remained cut off from the navigation coming from the Rhine. All shipped goods were subject to Heilbronner staple right . In the late 16th century, Duke of Württemberg, Frederick I had plans for the navigation passage but discarded those in 1598 and instead planned to construct a württembergian trade port in Kochendorf . – which
15142-416: The river. Multiple initiatives are advocated for the land restoration the Neckar, the ecological enhancement of the river network, the improvement of the water quality , improved flood control and the creation of attractive local recreational areas alongside the river. Only recently within the frame of the nationwide campaign lively rivers and the initiative Lebendiger Neckar (German: lively Neckar), it
15276-475: The strong backfilling with Aue clay since the start of settlement in the Neolithic and the accompanying deforestation and soil erosion . In the area of the narrows the meander and cut-off meander spurs stand out. The meanders were formed through the primal Neckar, which sluggishly flowed through the almost even Muschelkalk plateau, forming the basic structures during the deepening phases and cutting into
15410-676: The terminus of the Triassic, there was an extreme warming event referred to as the End-Triassic Thermal Event (ETTE), which was responsible for the Triassic-Jurassic mass extinction. Bubbles of carbon dioxide in basaltic rocks dating back to the end of the Triassic indicate that volcanic activity from the Central Atlantic Magmatic Province helped trigger climate change in the ETTE. During the Early Triassic, lycophytes , particularly those of
15544-595: The terrestrial species had mostly died out during the extinction event. The Triassic survivors were aquatic or semi-aquatic, and were represented by Tupilakosaurus , Thabanchuia , Branchiosauridae and Micropholis , all of which died out in Early Triassic, and the successful Stereospondyli , with survivors into the Cretaceous Period. The largest Triassic stereospondyls, such as Mastodonsaurus , were up to 4 to 6 metres (13 to 20 ft) in length. Some lineages (e.g. trematosaurs ) flourished briefly in
15678-577: The time of the Permo-Triassic boundary; acid rain from the Siberian Traps eruptions or from an impact event that overwhelmed acidic swamps; climate shift to a greenhouse climate that was too hot and dry for peat accumulation; evolution of fungi or herbivores that were more destructive of wetlands; the extinction of all plants adapted to peat swamps, with a hiatus of several million years before new plant species evolved that were adapted to peat swamps; or soil anoxia as oxygen levels plummeted. Before
15812-479: The usage of the Neckar as a waterway with line boats and rafts has been attested. The river was already blocked by weirs in the surroundings of several cities during the High Middle Ages. In Heilbronn a harbour was mentioned for the first time in 1146. The Neckar privilege granted by Holy Roman Emperor Louis IV in 1333 allowed the free imperial city the construction of a weir. After its construction,
15946-492: The valley became the only possibility for modern transportation infrastructure. Construction of railway lines and avenues in the valley plains changed the Neckar valley from a cultural to an industrial landscape. One example is the densely populated and industrialised Neckar valley between Plochingen and Bad Cannstatt , which harbors large companies such as Daimler AG (the maker of Mercedes Benz cars) and Mahle GmbH and recreational facilities with large area consumption like
16080-546: The valley sides show limestone-sinter. Between Stuttgart and Lauffen the Neckar cuts a scenic, meandering, and in many places steep-sided, valley into fossiliferous Triassic limestones and Pleistocene travertine . After Stuttgart it turns again towards the general northern direction. In a winding and narrow valley section through the Ludwigsburg (district) the Rems enters from the right at Remseck and then again from
16214-449: The water, a new rafting harbour was constructed in Heilbronn in 1875. Above Esslingen the rafting was only of little importance. The last raft passed the city on 28. Oktober 1899. A new recovery for the Neckar navigation came with the chain boat navigation begun in 1878. Despite the construction of a railroad line along the Neckar. Between Mannheim and Heilbronn steam towboats with attached barges were now able to pull themselves upriver on
16348-478: The younger Keuper and Jura layers in the northeast, and created narrow water gaps in the area of the morphologically hard chalks and sandstones. The river deepening was also caused by the further rise of the Black Forest as well as the retracting erosion of the attacking younger Neckar route. This younger Neckar route tapped the primal Neckar system at Plochingen (hence the Neckarknie ), which flowed through
16482-615: Was a dominant element in forest habitats across the region during the Middle-Late Triassic. During the Late Triassic, the Ginkgoales (which today are represented by only a single species, Ginkgo biloba ) underwent considerable diversification. Conifers were abundant during the Triassic, and included the Voltziales (which contains various lineages, probably including those ancestral to modern conifers), as well as
16616-673: Was a relatively cool period known as the Early Norian Cool Interval (ENCI), after which occurred the Mid-Norian Warm Interval (MNWI) from 217 to 209 Ma. The MNWI was briefly interrupted around 214 Ma by a cooling possibly related to the Manicouagan impact . Around 212 Ma, a 10 Myr eccentricity maximum caused a paludification of Pangaea and a reduction in the size of arid climatic zones. The Rhaetian Cool Interval (RCI) lasted from 209 to 201 Ma. At
16750-505: Was accompanied by huge volcanic eruptions that occurred as the supercontinent Pangaea began to break apart about 202 to 191 million years ago (40Ar/39Ar dates), forming the Central Atlantic Magmatic Province (CAMP), one of the largest known inland volcanic events since the planet had first cooled and stabilized. Other possible but less likely causes for the extinction events include global cooling or even
16884-486: Was as unsuccessful as his successors plans to build one in Untereisesheim . During the times of need in the 17th century, the navigation was insignificant. Immediately above Mannheim interventions were necessary due to regular floods. After 1622, smaller corrections were made at the back then-existing Neckar loops between Mannheims Feudenheim and today's Friedrich-Ebert-Bridge. Floods still occurred and threatened
17018-567: Was begun to free it from its partly-existing concrete corset. The river has in parts been redeveloped as a local recreational area and habitat for animals and plants. It still remains a symbol of endangered nature with the highest power plant density in Germany. At an oxygen content of below 4 mg/L power plant owners have to run specially designed turbines to inject air into the water. As of 2003, no mass die-off of fish due to lack of oxygen had occurred for 20 years. The Neckar valley functions as
17152-560: Was changed to include " Bad " ( German : Bath ) to mention the town's spas on 23 July 1933 . Bad Cannstatt lies on the Neckar at the convergence of various regional trails. The area was inhabited by the Seelberg mammoth hunters during the last glacial period . The town was founded during the Roman period , records survive of Roman knowledge of the area's springs. The nearby Sielberg
17286-600: Was dissolved, which had since 1810 tried to gain a monopoly on the Neckar trade. With the ratification of the Neckarschiffahrtsordnung in 1842 all Guilds were dissolved and thereby economic freedom created. From 1841/42 onwards the Heilbronn-based Neckar-Dampfschifffahrt introduced a regular passenger and general cargo transport from Heilbronn to Mannheim. Despite the usage of modern steam ships, horses still pulled
17420-484: Was encroached upon by a pair of extensive oceanic basins: The Neo-Tethys (or simply Tethys) and Paleo-Tethys Oceans . These extended from China to Iberia, hosting abundant marine life along their shallow tropical peripheries. They were divided from each other by a long string of microcontinents known as the Cimmerian terranes . Cimmerian crust had detached from Gondwana in the early Permian and drifted northwards during
17554-416: Was mostly straightened in order to prevent flooding and to gain areas for industrial buildings. The river itself was expanded over the course of centuries. With the development into a heavy shipping lane in the early 20th century, the last freely flowing parts between Plochingen and the mouth disappeared and the whole river in this part nowadays is characterized by dam areas. In the strongly textured Neckar area
17688-451: Was named in 1834 by Friedrich August von Alberti , after a succession of three distinct rock layers (Greek triás meaning 'triad') that are widespread in southern Germany : the lower Buntsandstein (colourful sandstone ) , the middle Muschelkalk (shell-bearing limestone ) and the upper Keuper (coloured clay ). On the geologic time scale , the Triassic is usually divided into Early , Middle , and Late Triassic Epochs , and
17822-508: Was the bypassing of the entire weir area and many mills. After further river construction measures, the Neckar became navigable all the way between the Rhine and Cannstatt . A lock gate at the upper end of the canal could turn it during floods into a port of refuge which was, already in 1829, expanded into a port of transshipment. In 1827 the Mannheimer Stapel was lifted through which the Neckar navigators gained back free access to
17956-456: Was the capital of the county of Württemberg into the 14th or 15th century ; the Rotenberg was the location of the ruling house's ancestral castle. Cannstatt subsequently formed part of the duchy , electorate , and kingdom of Württemberg . It lay about 2.5 miles (4 km) from Stuttgart proper, although it has since grown to include Bad Cannstatt. In the 13th or 14th century, Louis
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