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翼鳕(Pteronisculus)是辐鳍鱼下纲干群中一个已绝灭的属,以泪骨构成口缘为典型特征。直到最近,该属仅发现于欧洲、马达加斯加和北美的早三叠世地层;可能的中三叠世化石记录发现于斯匹次卑尔根岛。根据最近采自云南罗平中三叠世安尼期(242~247 Ma)海相地层中保存良好的化石标本,命名了翼鳕属一新种,尼尔森翼鳕(Pteronisculus nielseni sp.nov.)。该种代表了翼鳕属在亚洲的首次发现,它的发现为支持三叠纪时期东、西特提斯洋之间存在生物交流的假说提供了新证据。另外,作为翼鳕属最晚的代表种之一,尼尔森翼鳕的发现表明翼鳕属在早三叠世末并没有灭绝,至少延续到中三叠世早期。
Pteronisculus (Pteronisculus) is an extinct genus in the subspecies of the radiant fin, typical of the lacrimal bone. Until recently, the genus was found only in the Early Triassic strata in Europe, Madagascar and North America; the probable Middle Triassic fossil record was found on Spitsbergen. A new species of Pterodactylus, Pteronisculus nielseni sp. Nov., Has been named based on the well-preserved fossil specimens recently collected from the marine phase of the Middle Ages (242-247 Ma) of Middle Triassic in Luoping, Yunnan. This species represents the first finding of the genus Pigeon in Asia and its findings provide new evidence to support the hypothesis that there is biological communication between the eastern and western Tethys in the Triassic. In addition, as one of the latest representatives of the genus Pigeon, the discovery of Nielonholiday found that the genus Pigeon was not extinct at the end of the Early Triassic period, at least until the early Middle Triassic.