Word Study
pelycosauria
WORDNET DICTIONARY
Noun pelycosauria has 1 sense
- pelycosauria(n = noun.animal) order pelycosauria - edaphosaurus; dimetrodon; Array is a kind of animal order
is a member of subclass synapsida, synapsida
CIDE DICTIONARY
pelycosauria, prop. n.
An order of extinct reptiles including edaphosaurus and dimetrodon. [WordNet 1.5]
For further exploring for "pelycosauria" in Webster Dictionary Online