The La Naveta Formation ( Spanish : Formación La Naveta , Kiln) is a geological formation of the Altiplano Cundiboyacense , Eastern Ranges of the Colombian Andes . The formation consists of a lower part of coraline limestones and an upper sequence of quartzitic sandstones with intercalated black shales and dates to the Early Cretaceous period; Hauterivian to Barremian epochs.
4-562: The formation was first defined as Horizonte de La Naveta by Hubach in 1931 and in 1969 by Cáceres and Etayo elevated to formation. The La Naveta Formation is characterised by a lower part of coraline limestone and an upper sequence of quartzitic sandstones with black shales intercalated. The La Naveta Formation overlies the Útica Formation and is overlain by the Trincheras Formation . The age has been estimated to be Hauterivian to Barremian . Stratigraphically,
8-544: The Universidad Nacional de Colombia in 1963, and his PhD in paleontology from the University of California, Berkeley in 1975. In 1962, Etayo Serna published his first work about the species Codakia orbicularis and Codakia orbiculata . He has defined many geologic formations of Colombia in the 1960s and 1970s. Etayo, together with fellow paleontologist María Páramo , collaborated in describing
12-614: The first dinosaur fossil found in Colombia, Padillasaurus from the Paja Formation , close to Villa de Leyva , Boyacá . His work has been focused on the descriptions of the various ammonites found in the same formation. He also co-authored the 2016 publication about Stenorhynchosaurus munozi , found in the same formation. Etayo has published in Spanish and English. In 1975, the year Etayo received his PhD degree, he
16-656: The formation is time equivalent with the Las Juntas , Ritoque and Paja Formations . The La Naveta Formation has its type locality to the north of the Bogotá River . Fernando Etayo Fernando Etayo Serna is a Colombian paleontologist and geologist . His contributions on the paleontology in Colombia has been mainly on the descriptions of ammonites and Etayo has helped describing many fossiliferous geologic formations of Colombia . Etayo obtained his MSc. degree in geology and geophysics from
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