'Pelycosauria' definitions:
Definition of 'Pelycosauria'
(from WordNet)
noun
Edaphosaurus; dimetrodon [syn: Pelycosauria, order Pelycosauria]
Definition of 'Pelycosauria'
From: GCIDE
- Pelycosauria \Pelycosauria\ prop. n.
- 1. An order of extinct reptiles including edaphosaurus and dimetrodon.
- Syn: order Pelycosauria. [WordNet 1.5]