order Pelycosauria

Also found in: Thesaurus.
Related to order Pelycosauria: order Therapsida, Cynodonts
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.order Pelycosauria - edaphosaurusorder Pelycosauria - edaphosaurus; dimetrodon    
animal order - the order of animals
subclass Synapsida, Synapsida - extinct reptiles of the Permian to Jurassic considered ancestral to mammals
pelycosaur - large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America
Edaphosauridae, family Edaphosauridae - a family of reptiles of the order Pelycosauria
genus Dimetrodon - a reptile genus of Pelycosauria
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