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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Plinthogomphodon ： ウィキペディア英語版 Plinthogomphodon ''Plinthogomphodon'' is an extinct genus of traversodontid cynodont from the Late Triassic of the eastern United States. Fossils have been found from the Deep River basin of North Carolina, part of the larger Newark Supergroup. It is known from a single eroded snout. The type and only species is ''P. herpetairus''. == Description and history == ''Plinthogomphodon'' was named in 1999. The name means "brick molar tooth" in Greek, as it was found in mudstone used to make bricks and its postcanine teeth resemble molars. The type species is ''P. herpetairus'', meaning "companion of reptiles" from the Greek ''herpeton'' ("reptile") and ''hetairos'' ("companion"). The name alludes to the close proximity of the holotype specimen to the remains of a rauisuchian and a sphenosuchian archosaur when it was first discovered. The holotype only preserves the underside of the snout, as the dorsal surface has eroded away. The tip of the snout is broad, but it constricts behind the canines. The tips of most teeth are also worn away, except for two postcanine teeth that had not yet erupted and were exposed during the fossil's preparation for study. Because the teeth had not yet emerged, the individual was probably a juvenile. Like most traversodotids, ''Plinthogomphodon'' has a pair of large canine teeth and several wide, cusped postcanine teeth. The postcanines of ''Plinthogomphodon'' are much wider than they are long and closely packed together. Based on the postcanine that had not erupted in the holotype, the postcanine of ''Plinthogomphodon'' has three main cusps: a lingual cusp near the mouth, a slightly smaller central cusp, and a relatively large buccal cusp near the cheek. There are also smaller accessory cusps in front of the buccal cusp.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Plinthogomphodon」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.