is a specific kind of: reptile family.

has as a member: Chelonia, genus Chelonia | Caretta, genus Caretta | genus Lepidochelys, Lepidochelys | Eretmochelys, genus Eretmochelys.

is a member of: Chelonia, order Chelonia, order Testudinata, order Testudines, Testudinata, Testudines.