Sauropteryiga is the Superorder of Marine Reptiles that dominated in the Mesozoic era. "Sauropteryiga" literally means "Lizard Fin" in Latin. They are characterized by a configuration in structure in their shoulder, which supports flippers for propulsion and swimming rather than limbs.

History Edit

Sauropterygians first evolved at the early Triassic period, 245 million years ago (mya).

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