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It appears to be the most common species of plesiosaur in the Lias Group of England. [24] Plesiosaurus is best represented from the "upper part of the Blue Lias , the 'Shales with Beef,' and the lower Black Ven Marls" the latter of which form part of the Charmouth Mudstone ; using the Lias Group ammonite fossil zones, these rocks date to the ...
The fact that the osteology of the plesiosaur's neck makes it absolutely safe to say that the plesiosaur could not lift its head like a swan out of water as the Loch Ness monster does, the assumption that air-breathing animals would be easy to see whenever they appear at the surface to breathe, [146] the fact that the loch is too small and ...
This list of plesiosaurs is a comprehensive listing of all genera that have ever been included in the order Plesiosauria, excluding purely vernacular terms.The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms of more established names, and genera that ...
Pravoslavlev recognized another species from New Zealand, E. hoodii, named by Owen in 1870 as Plesiosaurus hoodii based on a neck vertebra. [62] Welles recognized it as a nomen dubium in 1962; [33] Joan Wiffen and William Moisley concurred in a 1986 review of New Zealand plesiosaurs. [63] In 1949 Welles named a new species of Elasmosaurus, E ...
Pliosaurus brachydeirus is the (combinatio nova of the) type species of the genus. It was first described and named by the English paleontologist Richard Owen in 1841, as a species of the wastebasket taxon Plesiosaurus in its own subgenus Pleiosaurus, creating Plesiosaurus (Pleiosaurus) brachydeirus. [5]
Cryptoclididae is a family of medium-sized plesiosaurs that existed from the Middle Jurassic to the Early Cretaceous. They had long necks, broad and short skulls and densely packed teeth. They fed on small soft-bodied preys such as small fish and crustaceans.
Pages in category "Plesiosaurs" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. ...
Polycotylidae is a family of plesiosaurs from the Cretaceous, a sister group to Leptocleididae.They are known as false pliosaurs. Polycotylids first appeared during the Albian stage of the Early Cretaceous, before becoming abundant and widespread during the early Late Cretaceous.