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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
New information on Nqwebasaurus thwazi, a coelurosaurian theropod from the Early Cretaceous Kirkwood Formation in South Africa
Journal of African Earth Sciences, Volume 71-72, Year 2012
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Description
We performed additional preparation on the holotype skeleton of . Nqwebasaurus thwazi and discovered new skeletal material. We describe this material, which includes a maxilla with small, conical, unserrated teeth and bones of the braincase, as well as parts of the holotype postcranial anatomy that were previously poorly documented. We incorporate this new anatomical information into a broadly sampled matrix designed to test theropod relationships. Our phylogenetic results hypothesize that . Nqwebasaurus is the basalmost ornithomimosaur, and recover numerous characters supporting this relationship, including features of the maxilla, frontal, dentition, axial skeleton, forelimb and hindlimb. . Nqwebasaurus is the first African ornithomimosaur and the first Gondwanan member of this group known from articulated skeletal material, supporting the hypothesis that coelurosaurian groups were cosmopolitan during their early evolutionary history. The presence of reduced dentition and a gastric mill in . Nqwebasaurus strongly suggest that this taxon was herbivorous. © 2012 Elsevier Ltd.
Authors & Co-Authors
Choiniere, Jonah N.
United States, Washington, D.c.
The George Washington University
United States, New York
American Museum of Natural History
South Africa, Johannesburg
University of the Witwatersrand
Forster, Catherine A.
United States, Washington, D.c.
The George Washington University
de Klerk, William J.
South Africa, Grahamstown
Rhodes University
Statistics
Citations: 86
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1016/j.jafrearsci.2012.05.005
ISSN:
1464343X
e-ISSN:
18791956
Study Locations
South Africa