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Ischioceratops, new leptoceratopsid from Upper Cretaceous of China

Ben Creisler

New in PLoS ONE:

Yiming He, Peter J. Makovicky, Kebai Wang, Shuqing Chen, Corwin
Sullivan, Fenglu Han & Xing Xu (2015)
A New Leptoceratopsid (Ornithischia, Ceratopsia) with a Unique Ischium
from the Upper Cretaceous of Shandong Province, China.
PLoS ONE 10(12): e0144148

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.