Talk:Bactrosaurus

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Cionodon kysylkumensis[edit]

The referral of Cionodon kysylkumensis Riabinin 1931 to Bactrosaurus is after Nessov (1995). Norman and Sues (2000) found this assignment unjustified and C. kysylkumensis has been sunk as a junior synonym of Levensovia transoxiana by Averianov and Sues (2009).

Hans-Dieter Sues and Alexander Averianov. (2009). "A new basal hadrosauroid dinosaur from the Late Cretaceous of Uzbekistan and the early radiation of duck-billed dinosaurs." Proceedings of the Royal Society B: Biological Sciences, 276(1667): 2549-2555. doi:10.1098/rspb.2009.0229

Nessov, 1995. Dinozavri severnoi Yevrasii: Novye dannye o sostave kompleksov, ekologii i paleobiogeografii [Dinosaurs of Northern Eurasia: new data about assemblages, ecology and paleobiogeography], Scientific Research Institute of the Earth's Crust, St. Petersburg State University, St. Petersburg, Russia: 156 pp. + 14 pl. [in Russian with short English, German, and French abstracts].

Norman, David B.; Sues, Hans-Dieter (2000). "Ornithopods from Kazakhstan, Mongolia and Siberia". In Benton, Michael J.; Shishkin, Mikhail A.; Unwin, David M.; and Kurochkin, Evgenii N.. The Age of Dinosaurs in Russia and Mongolia. Cambridge: Cambridge University Press. pp. 462–479. 68.4.61.168 (talk) 17:15, 8 March 2012 (UTC)Vahe Demirjian[reply]

"An early relative of Lambeosaurus"?[edit]

How is Bactrosaurus "an early relative of Lambeosaurus" if the former is from 70 Ma and the latter from 75 Ma? Dave Norman's An Illustrated Encyclopedia of Dinosaurs (1985) says Bactrosaurus is from about 100 Ma (p. 116). I imagine this is outdated info? SaberToothedWhale (talk) 22:52, 7 July 2012 (UTC)[reply]