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'''Plesiosaurs''' are large [[reptiles]] characterized by long necks with small heads; stocky, finless tails; and a broad, turtle-like body with four flippered appendages. Based on their morphological design and fossilized feces<ref>[http://news.bbc.co.uk/1/hi/sci/tech/4341204.stm "Plesiosaur bottom-feeding shown"], BBC</ref>, paleontologists infer that they were sea-dwelling carnivores that dined on fish and shellfish.

'''Plesiosaurs''' are large [[reptiles]] characterized by long necks with small heads; stocky, finless tails; and a broad, turtle-like body with four flippered appendages. Based on their morphological design and fossilized feces<ref>[http://news.bbc.co.uk/1/hi/sci/tech/4341204.stm "Plesiosaur bottom-feeding shown"], BBC</ref>, paleontologists infer that they were sea-dwelling carnivores that dined on fish and shellfish.

[[Image:plesiosaur_owen.png|none|Plesiosaur skeleton from ''Palaeontology'', Richard Owen, 1861, p. 247.]]

<div style="text-align:center">[[Image:plesiosaur_owen.png|none|Plesiosaur skeleton from ''Palaeontology'', Richard Owen, 1861, p. 247.]]</div>

Their [[fossil]] skeletons were first discovered in early 19th century in England by [[Mary Anning]] and were among the first large vertebrate fossils found. Since then, many more have been found and there are a number of complete specimens.

Their [[fossil]] skeletons were first discovered in early 19th century in England by [[Mary Anning]] and were among the first large vertebrate fossils found. Since then, many more have been found and there are a number of complete specimens.