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Noun: subclass Anapsida
  1. Oldest known reptiles; turtles and extinct Permian forms
    - Anapsida

Type of: class

Part of: class Reptilia, Reptilia

Nearest

subatomic
subatomic particle
subaudition
subbase
subbing
subclass
subclass Acnidosporidia
subclass Actinopoda
subclass Alismatidae
subclass Amphineura
subclass Anapsida
subclass Archaeornithes
subclass Archosauria
subclass Arecidae
subclass Asteridae
subclass Branchiopoda
subclass Caryophyllidae
subclass Cirripedia
subclass Cnidosporidia
subclass Commelinidae
subclass Copepoda