Anapsida

Từ điển WordNet v3.1 - WordNet Dictionary

noun

oldest known reptiles;
turtles and extinct Permian forms
• Syn:
subclass Anapsida
• Hypernyms:
class
• Member Holonyms:
Reptilia, class Reptilia
• Member Meronyms:
anapsid, anapsid reptile, Chelonia, order Chelonia, Testudinata,
order Testudinata, Testudines, order Testudines