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English: Anapsida is a subclass of reptiles (Sauropsida). They appeared in the late Carboniferous period, and came in several different forms. Today, the turtles (Testudines) are the only member left of this group. Anapsida is normally characterised by the lack of holes (Fenestrae) behind the eyesocket in the skull, althougt some extict genera like Acleistorhinus had it.
Labidosaurus (Early Permian).