Peloneustes
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Peloneustes is a genus of pliosaurid plesiosaur from the Middle Jurassic of England. Its remains are known from the Peterborough Member of the Oxford Clay Formation, which is Callovian in age. It was
Peloneustes philarchus Tubingen
Mandible and vertebrae of the specimen (NHMUK PV R1253) described by Lydekker
Skeleton of Hauffiosaurus, first thought to be Peloneustes, Urwelt-Museum Hauff
Cranium of Peloneustes figured from below (left, NHMUK 3803) and above (right, NHMUK 2679)
Plesiosaur
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The Plesiosauria 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 Rha
Peloneustes
…Plesiosaurus philarchus and published a description of it in 1889. After studying this and other specimens in the Leeds Collection, he concluded that plesiosaurs with shortened necks and large heads could not be classified as species of Plesiosaurus, meaning that "P." philarchus belonged to a different genus…
Paleo Hall at HMNS plesiosaur
First published plesiosaur skeleton, 1719 (specimen NHMUK PV R.1330)
As this illustration shows, Conybeare by 1824 had gained a basically correct understanding of plesiosaur anatomy.