Seeleyosaurus is an extinct genus of plesiosaur. It is known from a large almost complete skeleton from the Upper Lias (Toarcian) of Württemberg. There seems to be the impression of a rhomboidal flap of skin in a vertical plane; if so, many plesiosaurs may have been equipped in this way.

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Tags: Вымершие рептилии, Юра, диапсиды, завроптеригии, лепидозавроморфы, плезиозавры

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