中国北方土城子组恐龙径迹组合的初步评述

L. Xing, Zhangxin Yu
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引用次数: 1

摘要

在华北地区,主要集中在辽西、冀北和北京地区,上侏罗统至下白垩统的土城子组脊椎动物骨架较少。然而,在过去的10年里,人们发现了大量新的恐龙足迹。到目前为止,在土城子组共发现了19个恐龙足迹遗址,总共包含2637个单独的足迹,代表了至少2091个足迹制造者。这一径迹记录已成为了解土城子恐龙区系的重要样本。图城子的足迹记录丰富,包括6种非鸟类兽脚亚目(asianopotes, Eubrontes, Grallator, Menglongipus, Therangospodus, Velociraptorichnus), 3种鸟类(Aquatilavipes, Pullornipes, koreanornis), 2种蜥脚类(Brontopodus, cf. Parabrontopodus isp.)和1种可能的鸟脚亚目(cf. Dinehichnu)。该组合以蜥目为主,与中国大部分侏罗系和白垩纪足迹一致。恐爪龙足迹与延辽生物群或热河生物群丰富的骨骼记录一致,鸟类足迹与热河生物群的滨鸟记录一致。鸟类足迹的存在是值得怀疑的,需要进一步的发现来证实。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Preliminary Review of Dinosaur Track Assemblages from the Tuchengzi Formation in North China
In northern China, mainly within Western Liaoning, Northern Hebei and Beijing, vertebrate skeletons from the Tuchengzi Formation (Upper Jurassic to Lower Cretaceous) are scarce. However, a large number of new dinosaur track discoveries have made in past 10 years. So far, a total of 19 dinosaur track sites have been found in the Tuchengzi Formation, collectively containing 2,637 individual tracks and representing at least 2,091 trackmakers. This track record has become an important sample for understanding the Tuchengzi dinosaur fauna. The abundant Tuchengzi track record includes six non-avian theropod ichnogenera (Asianopodus, Eubrontes, Grallator, Menglongipus, Therangospodus, and Velociraptorichnus), three bird ichnogenera (Aquatilavipes, Pullornipes, and Koreanaornis), two sauropod ichnogenera (Brontopodus and cf. Parabrontopodus isp.), and a possible ornithopod ichnogenus (cf. Dinehichnu). This assemblage is saurischian-dominated, which is consistent with most Jurassic and Cretaceous track sites in China. The presence of deinonychosaurian tracks is consistent with the rich skeletal record from the Yanliao Biota or Jehol Biota, and the bird tracks are consistent with the record of shorebirds in Jehol Biota. The existence of ornithopod tracks is doubtful and needs further discoveries to be confirmed.
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