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First Jurassic Choristodera from Asia |
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| Authors: | Alexander?O?Averianov |
| Institution: | (1) Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg, 199034, Russia;(2) Forschungsinstitut Senckenberg, Senckenberganlage 25, 60325 Frankfurt am Main, Germany;(3) Department of Anatomy and Developmental Biology, University College London, London, WC1E 6BT, UK;(4) M.M. Adyshev Institute of Geology, National Academy of Sciences of Kyrgyz Republic, Erkindik 30, Bishkek, 720481, Kyrgyzstan |
| Abstract: | Although choristoderes have a good Lower Cretaceous record in Asia, they have never previously been recorded from Jurassic deposits. Here we describe fragmentary vertebral material referable to Choristodera indet. from the Middle Jurassic Balabansai Svita of the Fergana Valley, Kyrgyzstan. This provides a significant range extension for the group in Asia and shows that choristoderes already had a Pan-Laurasian distribution in the Jurassic. |
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