期刊
CANADIAN JOURNAL OF EARTH SCIENCES
卷 53, 期 2, 页码 168-175出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/cjes-2015-0099
关键词
-
资金
- Russian Scientific Fund Project [14-14-00015]
Three theropod taxa have been identified based on isolated frontal bones from the Santonian-?Campanian Bostobe Formation at the Shakh-Shakh locality, in the northeastern Aral Sea region of Kazakhstan. A frontal referable to Ornithomimosauria indet. is distinct in having a slightly pronounced cerebral dome. A frontal of an unidentified therizinosaur resembles the element in Erlikosaurus (Cenomanian-Turonian of Mongolia) in most features, but it differs in having an anterolateral prong along the orbital rim, a less-developed facet for contact with the prefrontal, and a larger depression for the cerebral hemisphere. A frontal identifiable as Troodontidae indet. differs from that of Troodon (Campanian-Maastrichtian of North America) and resembles that of the Mongolian Campanian Gobivenator in having a larger supratemporal fossa and the anterior process of the parietals wedged between the frontals. This specimen is the first reliable record for Troodontidae from the Bostobe Formation.
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