Metatarsals of a large caenagnathid cf. Anzu wyliei (Theropoda: Oviraptorosauria) from the Hell Creek Formation in South Dakota, USA1

Author:

Tsujimura Kousuke1,Manabe Makoto2,Chiba Yumiko1,Tsuihiji Takanobu12

Affiliation:

1. Department of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.

2. Department of Geology and Paleontology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan.

Abstract

Isolated metatarsals III and IV of a caenagnathid theropod likely referable to Anzu wyliei are described from a locality of the Hell Creek Formation in northwestern South Dakota, USA. These bones are missing from the holotype and only partial shafts have been described for a specimen referable to this species. Accordingly, the present description adds further anatomical information on this already well-known species of Caenagnathidae. The present finding also demonstrates the significance of isolated or fragmentary specimens found in multitaxic bone beds.

Publisher

Canadian Science Publishing

Subject

General Earth and Planetary Sciences

Reference47 articles.

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2. Bartlett, J.A. 2004. Taphonomy, geology, and paleoecology of the Sandy Site, an exceptional assemblage in the Maastrichtian Hell Creek Formation of South Dakota. M.Sc. thesis, Department of Marine, Earth and Atmospheric Science, University of North Carolina, Raleigh, N.C.

3. Brinkman, D.B., Russell, A.P., and Peng, J.H. 2005. Vertebrate microfossil sites and their contribution to studies of paleoecology. In Dinosaur Provincial Park: a spectacular ancient ecosystem revealed. Edited by P.J. Currie and E.B. Koppelhus. Indiana University Press, Bloomington, Ind. pp. 88–98.

4. Osteology of Tyrannosaurus rex: Insights from a Nearly Complete Skeleton and High-Resolution Computed Tomographic Analysis of the Skull

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