Journal
CRETACEOUS RESEARCH
Volume 57, Issue -, Pages 90-110Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cretres.2015.07.012
Keywords
Dinosauria; Theropoda; Omithomimidae; Cretaceous; Uzbekistan
Categories
Funding
- National Science Foundation [EAR-9804771, EAR-0207004]
- National Geographic Society [5901-97, 6281-98]
- Navoi Mining and Metallurgy Combinat
- Russian Scientific Fund [14-14-00015]
- Russian Science Foundation [14-14-00015] Funding Source: Russian Science Foundation
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The stratigraphically oldest remains of omithomimid theropod dinosaurs are known from the Cenomanian Khodzhakul Formation and the Turonian Bissekty Formation of Uzbekistan. The ornithomimid from the Bissekty Formation is documented by more than 800 isolated bones that represent much of the skeleton. It shows at least three unambiguous synapomorphies of Ornithomimidae: length of anterior cervical centra three to five times greater than transverse width; low and rounded fibular crest of tibia; metatarsal III pinched between. metatarsals II and IV; and proximal end of metatarsal III not visible in anterior view. Phylogenetic analysis, based on a dataset with 568 morphological characters and including all known omithomimosaurian taxa, places the omithomimid from the Bissekty Formation near the base of the omithomimid radiation, between Archaeornithomimus asiaticus and Sinornithomimus dongi. Published by Elsevier Ltd.
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