globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.08.011
论文题名:
Diverse sauropod-, theropod-, and ornithopod-track assemblages and a new ichnotaxon Siamopodus xui ichnosp. nov. from the Feitianshan Formation, Lower Cretaceous of Sichuan Province, southwest China
作者: Xing L.; Lockley M.G.; Zhang J.; Klein H.; Persons W.S.; Dai H.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 414, 期:1
起始页码: 79
结束页码: 97
语种: 英语
英文关键词: Feitianshan Formation ; Lower Cretaceous ; Ornithopod tracks ; Sauropod tracks ; Siamopodus xui ; Theropod tracks
英文摘要: Copper mining activities in a huge quarry in the fluvial-lacustrine Lower Cretaceous Feitianshan Formation near Zhaojue, Sichuan Province have temporarily exposed large track-bearing surfaces that require rapid documentation before they are subject to erosion or damage from collapse or destruction by mining. Due to the urgent need to document these sites several preliminary studies of representative material have been completed, and more than 1000 tracks have been observed. Here we present maps of two large surfaces, with a combined area of ~1000m2, representing the same stratigraphic level, and yielding multiple trackways of measurable quality, including at least 8 theropod, 7 sauropod, and 22 ornithopod trackways. Additional trackmakers of the two latter groups are also well-represented by natural casts derived from an overlying unit disturbed by quarrying. The sauropod tracks are assigned to the ubiquitous ichnogenus Brontopodus. The ornithopod tracks belong to the ichnogenera Caririchnium, attributed to quadrupeds or facultative bipeds, and Ornithopodichnus, corresponding to smaller bipeds. Based on size and morphology the theropod trackways appear to represent diverse morphotypes, including one attributed to the new ichnospecies Siamopodus xui. The Feitianshan Formation ichnofauna, which also includes pterosaur tracks from other nearby surfaces, is moderately diverse and indicates an abundant presence of archosaurs in the region during the Early Cretaceous. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69205
Appears in Collections:过去全球变化的重建

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作者单位: School of the Earth Sciences and Resources, China University of Geosciences, Beijing, China; Dinosaur Trackers Research Group, University of Colorado Denver, PO Box 173364, Denver, CO, United States; Saurierwelt Paläontologisches Museum, Alte Richt 7, Neumarkt, Germany; Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, AB, Canada

Recommended Citation:
Xing L.,Lockley M.G.,Zhang J.,et al. Diverse sauropod-, theropod-, and ornithopod-track assemblages and a new ichnotaxon Siamopodus xui ichnosp. nov. from the Feitianshan Formation, Lower Cretaceous of Sichuan Province, southwest China[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,414(1)
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