Category:Sauropterygia
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Sauropterygia are an important group of extinct Mesozoic marine reptiles that include pachypleurosaurs, nothosaurs, plesiosaurs, and, possibly, placodonts. For more, see Sauropterygia
Sauropterygia are an important group of extinct Mesozoic marine reptiles that include pachypleurosaurs, nothosaurs, plesiosaurs, and, possibly, placodonts. For more, see Sauropterygia