The Moreno Formation is a Mesozoic geologic formation located in San Joaquin Valley ( California ). Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.
4-717: Bonnerichthys B. gladius A large, filter-feeding pachycormid . Saurodon S. sp. An ichthyodectid . Augustynolophus A. morrisi S. morrisi Kolposaurus K. bennisoni The name Kolposaurus was preoccupied and its two constituent species moved to the new genus Plotosaurus . K. tuckeri Plesiotylosaurus P. crassidens Plotosaurus P. bennisoni Prognathodon P. cf. waiparaensis cf. Mosasaurus cf. M. sp. Halisaurus H. sp. Aphrosaurus A. furlongi Fresnosaurus F. drescheri Hydrotherosaurus H. alexandrae Morenosaurus M. stocki Adocus J. Howard Hutchison later referred
8-721: The Late Cretaceous . Fossil remains of this taxon were first described from the Smoky Hill Member of the Niobrara Chalk Formation of Kansas (Late Coniacian -Early Campanian ), and additional material was later reported from the Pierre Shale , Mooreville Chalk , Demopolis Chalk , Wenonah Formation , and Moreno Formation , among other localities. It grew to at least 5 metres (16 ft) in total body length, substantially less than
12-617: The related Leedsichthys from the Jurassic which likely grew up to 16.5 metres (54 ft). One of the most significant features of Bonnerichthys is the recognition that it was a filter feeder , living on plankton . This recognition that many large-bodied fish from the Mesozoic in the Pachycormidae were filter feeders shows that this niche was filled for at least 100 million years before previously known. The modern niche
16-537: The specimen originally identified as Adocus by to the genus Basilemys . Basilemys Osteopygis This article about a specific stratigraphic formation in the United States is a stub . You can help Misplaced Pages by expanding it . Bonnerichthys Bonnerichthys is a genus of fossil fishes within the family Pachycormidae that lived during the Coniacian to Maastrichtian stage of
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