Author:
Averianov Alexander,Skutschas Pavel,Bolotsky Yuriy,Bolotsky Ivan
Abstract
A fragmentary tibia of an actively growing sub-adult individual from the Upper Cretaceous (Maastrichtian) Udurchukan Formation at Kundur, Amur oblast, Far East, Russia, is similar to the tibia of Qiupalong henanensis from the Maastrichtian of Henan Province, China, in bearing a weak posteromedial ridge at the distal end and equally projecting distal malleoli. Qiupalong had a transcontinental distribution and likely originated in North America. Similarly, lambeosaurine hadrosaurids from the Udurchukan Formation have American affinities and their ancestors may had dispersed from North America to East Asia together with a Qiupalong-like ornithomimid. Q. henanensis and Ornithomimidae indet. from Kundur are the only records of the Maastrichtian Ornithomimidae in Asia outside Gobi Desert.
Publisher
Saint Petersburg State University
Reference62 articles.
1.
Alifanov, V. R. and Bolotsky, Y. L. 2002. New data about the assemblages of the Upper Cretaceous carnivorous dinosaurs (Theropoda) from Amur Region; pp. 25–26 in Kirillova, G. L. (ed.). The IVth International Symposium of IGCP 434. Cretaceous Continental Margin of east Asia: Stratigraphy, Sedimentation, and Tectonic. Program and Abstracts. DVO RAN Publ., Khabarovsk. (In Russian)
2. Averianov, A. O. and Lopatin, A. V. 2021. A re-appraisal of
Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs.
Journal of Systematic Palaeontology 19(16):1097–1128.
https://doi.org/10.1080/14772019.2021.2013965
3.
4.
Barsbold, R. 1988. A new Late Cretaceous ornithomimid from the Mongolian People’s Republic. Paleontologicheskii Zhurnal (1):122–125. (In Russian)
5. Bell, P. R. 2011. Cranial osteology and ontogeny of
Saurolophus angustirostris from the Late Cretaceous of Mongolia with comments on
Saurolophus osborni from Canada.
Acta Palaeontologica Polonica 56(4):703–722.
https://doi.org/10.4202/app.2010.0061