bn:00075690n
Noun Concept
Categories: Synapsids, Articles with 'species' microformats, Extant Pennsylvanian first appearances, Articles with short description, Taxa named by Henry Fairfield Osborn
EN
synapsid  synapsid reptile  Eotheriodontia  Evolutionary history of synapsids  Ophiacodontia
EN
Extinct reptile having a single pair of lateral temporal openings in the skull WordNet 3.0
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EN
Extinct reptile having a single pair of lateral temporal openings in the skull WordNet 3.0 & Open English WordNet
Synapsids are one of the two major clades of vertebrate animals in the group Amniota, the other being the sauropsids, which include reptiles and birds. Wikipedia
Any animal (including all mammals) of the class Synapsida. Wiktionary