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Illustration of the skeletal anatomy of a Plesiosaurus dolichodeirus from Conybeare's 1824 paper that described an almost complete plesiosaur skeleton found by Mary Anning in 1823. Plesiosaurus was a moderately sized plesiosaur that grew to 2.87–3.5 m (9.4–11.5 ft) in length.
Fossils that may have belonged to the holotype were found by the American geologist Benjamin Franklin Mudge in 1871, but have probably been lost since. [3] Additional plesiosaur fossils were recovered near the original locality in 1954, 1991, 1994, and 1998, including back vertebrae, ribs, gastralia (belly ribs), and gastroliths. As none of ...
In December 2017, a large skeleton of a plesiosaur was found in the continent of Antarctica, the oldest creature on the continent, and the first of its species in Antarctica. [47] Not only has the number of field discoveries increased, but also, since the 1950s, plesiosaurs have been the subject of more extensive theoretical work.
This was the first plesiosaur specimen of this caliber found in all of North America. Dr. Turner gave some of the vertebrae to a member of the Union Pacific railroad survey, John LeConte. He in turn gave the bones to paleontologist Edward Drinker Cope, who identified them as the remains of a very large plesiosaur. Cope wrote a letter to Dr ...
This story reflects the locals' interpretations of the abundant remains of animals like giant beavers, horses, mastodons, oxen, and giant ground sloths found in Missouri's river valleys. The details in the story about the remains being burnt or buried in the river reflects their preservation. Some of the fossils were burnt and others can be ...
List of the Paleozoic life of Missouri. This list of the Paleozoic life of Missouri contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Missouri and are between 538.8 and 252.17 million years of age. There is no Permian age rocks on the surface in Missouri, so beware of any fossils ...
The Pierre Shale is a geologic formation or series in the Upper Cretaceous which occurs east of the Rocky Mountains in the Great Plains, from Pembina Valley in Canada [2] to New Mexico. The Pierre Shale was described by Meek and Hayden in 1862 in the Proceedings of the Academy of Sciences (Philadelphia).
P. funkei is known from two partial skeletons, the holotype PMO 214.135 and the referred PMO 214.136, from the Svalbard archipelago of Norway. Housed at the University of Oslo Natural History Museum, the skeletons were found south of Sassenfjorden, from the southeast side of Mount Knerten, in the Arctic Spitsbergen island.