A new leptoceratopsid (ornithischia, ceratopsia) with a unique ischium from the upper cretaceous of Shandong Province, China

Yiming He; Peter J. Makovicky; Kebai Wang; Shuqing Chen; Corwin Sullivan; Fenglu Han; Xing Xu

doi:10.1371/journal.pone.0144148

A new leptoceratopsid (ornithischia, ceratopsia) with a unique ischium from the upper cretaceous of Shandong Province, China

Yiming He, Peter J. Makovicky, Kebai Wang, Shuqing Chen, Corwin Sullivan, Fenglu Han, Xing Xu

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The partial skeleton of a leptoceratopsid dinosaur, Ischioceratops zhuchengensis gen. et sp. nov., was excavated from the bone-beds of the Upper Cretaceous Wangshi Group of Zhucheng, Shandong Province, China. This fossil represents the second leptoceratopsid dinosaur specimen recovered from the Kugou locality, a highly productive site in Zhucheng. The ischium of the new taxon is morphologically unique among known Dinosauria, flaring gradually to form an obturator process in its middle portion and resembling the shaft of a recurve bow. An elliptical fenestra perforates the obturator process, and the distal end of the shaft forms an axehead-shaped expansion. The discovery of Ischioceratops increases the known taxonomic diversity and morphological disparity of the Leptoceratopsidae.

Original language	English (US)
Article number	e0144148
Journal	PloS one
Volume	10
Issue number	12
DOIs	https://doi.org/10.1371/journal.pone.0144148
State	Published - Dec 1 2015
Externally published	Yes

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Publisher Copyright:
© 2015 He et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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abstract = "The partial skeleton of a leptoceratopsid dinosaur, Ischioceratops zhuchengensis gen. et sp. nov., was excavated from the bone-beds of the Upper Cretaceous Wangshi Group of Zhucheng, Shandong Province, China. This fossil represents the second leptoceratopsid dinosaur specimen recovered from the Kugou locality, a highly productive site in Zhucheng. The ischium of the new taxon is morphologically unique among known Dinosauria, flaring gradually to form an obturator process in its middle portion and resembling the shaft of a recurve bow. An elliptical fenestra perforates the obturator process, and the distal end of the shaft forms an axehead-shaped expansion. The discovery of Ischioceratops increases the known taxonomic diversity and morphological disparity of the Leptoceratopsidae.",

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AU - Chen, Shuqing

AU - Sullivan, Corwin

AU - Han, Fenglu

AU - Xu, Xing

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A new leptoceratopsid (ornithischia, ceratopsia) with a unique ischium from the upper cretaceous of Shandong Province, China

Abstract

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