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Noun: pelycosaur
  1. Large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America

Derived forms: pelycosaurs

Type of: synapsid, synapsid reptile

Part of: order Pelycosauria, Pelycosauria

Encyclopedia: Pelycosaur

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pelvic
pelvic arch
pelvic cavity
pelvic fin
pelvic girdle
pelvic inflammatory disease
pelvimeter
pelvimetry
pelvis
pelycosaur
Pelycosauria
Pembroke
Pembroke Welsh corgi
pemican
pemmican
Pempheridae
pemphigous
pemphigus
pen
pen name