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首頁> 美國衛(wèi)生研究院文獻>BMC Evolutionary Biology >A new specimen of Manchurochelys manchoukuoensis from the Early Cretaceous Jehol Biota of Chifeng Inner Mongolia China and the phylogeny of Cretaceous basal eucryptodiran turtles
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A new specimen of Manchurochelys manchoukuoensis from the Early Cretaceous Jehol Biota of Chifeng Inner Mongolia China and the phylogeny of Cretaceous basal eucryptodiran turtles

機譯:內蒙古赤峰早白堊世熱河生物區(qū)系滿族Manchurochelys manchoukuoensis的新標本和白堊紀基底真隱龜?shù)南到y(tǒng)發(fā)育

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摘要

BackgroundManchurochelys manchoukuoensis is an emblematic turtle from the Cretaceous Yixian Formation of Liaoning, China, a geological rock unit that is famous for yielding perfectly preserved skeletons of fossil vertebrates, including that of feathered dinosaurs. Manchurochelys manchoukuoensis was one of the first vertebrates described from this fauna, also known as the Jehol Biota. The holotype was lost during World War II and only one additional specimen has been described since. Manchurochelys manchoukuoensis is a critical taxon for unraveling the phylogenetic relationships of Cretaceous pancryptodires from Asia, a group that is considered to be of key importance for the origin of crown-group hidden-neck turtles (Cryptodira).
機譯:背景Manchurochelys manchoukuoensis是來自中國遼寧白堊紀義縣組的象征性烏龜,這是一個地質巖石單元,以產生保存完好的化石脊椎動物骨骼(包括羽毛恐龍)而聞名。 Manchurochelys manchoukuoensis是最早從該動物群中被描述的脊椎動物之一,也被稱為Jehol Biota。原型在第二次世界大戰(zhàn)期間丟失,此后僅描述了另外一個標本。 Manchurochelys manchoukuoensis是揭示亞洲白堊紀pancryptodires系統(tǒng)發(fā)育關系的關鍵分類群,該群體被認為對冠群隱頸海龜(Cryptodira)的起源至關重要。

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