- Anapsida, subclass Anapsida - oldest known reptiles: turtles; extinct Permian forms
--1 is a kind of class
--1 is a member of Reptilia, class Reptilia
--1 has members:anapsid, anapsid reptile; Chelonia, order Chelonia, Testudinata, order Testudinata, Testudines, order Testudines