Noun
One of the Plesiosauria.
Source: Webster's dictionaryGastroliths from a plesiosaur Most reptiles are insectivorous or carnivorous and have rather simple and comparatively short digestive tracts, meat being fairly simple to break down and digest. Source: Internet
Her discoveries included the first ichthyosaur skeleton correctly identified; the first two more complete plesiosaur skeletons found; the first pterosaur skeleton located outside Germany; and important fish fossils. Source: Internet
Plesiosaur sculpted by co-author Dr. Stephen Godfrey currently on display at the Calvert Marine Museum. Source: Internet
The feud probably originated when Marsh publicly pointed out that Cope's reconstruction of an Elasmosaurus skeleton was flawed: Cope had inadvertently placed the plesiosaur 's head at what should have been the animal's tail end. Source: Internet