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Ichthyopterygia


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(class Reptilia)

A subclass that includes the one order Ichthyosauria. The ichthyopterygids had a synapsid type of skull, but because of key differences in the arrangement of the bones forming the margins of the single temporal opening, and for other reasons, they are usually placed in a different subclass from the Synapsida.

Subjects: Zoology and Animal Sciences.


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