bn:00061310n
Noun Concept
Categories: Synapsids, Taxa named by Edward Drinker Cope, Paraphyletic groups
EN
pelycosaur  mammal-like reptile  mammal-like reptiles  Mammal like reptile  Pelycosaur sail
EN
Large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America WordNet 3.0
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EN
Large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America WordNet 3.0 & Open English WordNet
Pelycosaur is an older term for basal or primitive Late Paleozoic synapsids, excluding the therapsids and their descendants. Wikipedia
Any of a group of basal or primitive Late Paleozoic synapsid amniotes, part of a polyphyletic grade, formerly regarded as order Pelycosauria. Wiktionary
WordNet 3.0 & Open English WordNet
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