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The private sale of fossils has attracted criticism from paleontologists, as it presents an obstacle to fossils being publicly accessible to research. [2] Most countries where relatively complete dinosaur specimens are commonly found have laws against the export of fossils. The United States allows the sale of specimens collected on private ...
Plesiosaurus (Greek: πλησίος (plesios), near to + σαῦρος (sauros), lizard) is a genus of extinct, large marine sauropterygian reptile that lived during the Early Jurassic. It is known by nearly complete skeletons from the Lias of England.
Elasmosaurus differed from all other plesiosaurs by having 72 neck vertebrae; more may have been present but were later lost to erosion or after excavation. Only Albertonectes had more neck vertebrae, 76, and the two are the only plesiosaurs with a count higher than 70; more than 60 vertebrae is very derived (or "advanced") for plesiosaurs. [14 ...
A U.S. grand jury in Utah returned a 13-count indictment charging 4 people with buying and selling more than $1 million in “paleontological resources,” which includes dinosaur bones that were ...
The discovery of a well-preserved fossil is helping researchers learn more about an iconic Jurassic-period species. The plesiosaur, considered a successful marine predatory ancient species, may ...
The Plesiosauria [a] [4] or plesiosaurs are an order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period , possibly in the Rhaetian stage, about 203 million years ago. [ 5 ]
All plesiosaurs, including Thalassiodracon were faunivorous, but widely ranged in their diets. Animals such as ammonites, cephalopods, and other invertebrates were often found in plesiosaur remains. [20] With the bones of dinosaurs and pterosaurs being found in plesiosaur remains, these animals are also possibilities for their diets. [20]
Everhart resumed the study of the partially digested plesiosaur skull bones, FHSM VP-13966. He sought the expertise of Ken Carpenter due to his relevant 1996 paper on short-necked plesiosaurs. Carpenter identified the bones as probable Dolichorhynchops remains. [31] Noe published another study of Pachycostasaurus. He changed his mind regarding ...
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