eprintid: 10077666 rev_number: 17 eprint_status: archive userid: 608 dir: disk0/10/07/76/66 datestamp: 2019-07-15 11:43:41 lastmod: 2021-09-26 22:44:10 status_changed: 2019-07-15 11:43:41 type: article metadata_visibility: show creators_name: Matsumoto, R creators_name: Tsogtbaatar, K creators_name: Ishigaki, S creators_name: Tsogtbaatar, C creators_name: Enkhtaivan, Z creators_name: Evans, SE title: Revealing body proportions of the enigmatic choristodere reptile Khurendukhosaurus from Mongolia ispublished: pub divisions: UCL divisions: B02 divisions: C08 divisions: D09 divisions: F96 keywords: Reptilia, Choristodera, Khurendukhosaurus, Cretaceous, Mongolia, Khuren- Dukh note: Copyright © 2019 R. Matsumoto et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. abstract: Khurendukhosaurus is an enigmatic genus of choristodere, recorded from the Lower Cretaceous of East Asia, Mongolia, and Siberian Russia. Until now, it was known only from isolated skull and postcranial elements, limiting comparison with other genera. Three major morphotypes have been recognised within Choristodera: longirostrine neochoristoderes with short-necks, and brevirostrine non-neochoristoderes with either short or long necks. The morphotype of Khurendukhosaurus was uncertain, although it had been inferred to be long-necked, based on cervical and caudal vertebral morphology shared with the Chinese Hyphalosaurus and on the results of phylogenetic analysis that placed it within a clade of Sino-Japanese long-necked taxa. Newly discovered material from the Mongolian type locality, Khuren-Dukh, preserves most major postcranial elements of a single individual. This specimen confirms that Khurendukhosaurus belongs to the long-necked morphotype, in having at least 13 cervical vertebrae. Moreover, a new phylogenetic analysis supports the placement of Khurendukhosaurus as a sister group of the Hyphalosaurus + Shokawa clade. Based on the new material, Khurendukhosaurus is estimated to have been roughly 1 m in total length, placing it at the upper end of the size range for long-necked choristoderes. date: 2019-04 date_type: published official_url: https://doi.org/10.4202/app.00561.2018 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1669683 doi: 10.4202/app.00561.2018 lyricists_name: Evans, Susan lyricists_id: SEEVA33 actors_name: Kalinowski, Damian actors_id: DKALI47 actors_role: owner full_text_status: public publication: Acta Palaeontologica Polonica volume: 64 number: 2 pagerange: 363-377 issn: 1732-2421 citation: Matsumoto, R; Tsogtbaatar, K; Ishigaki, S; Tsogtbaatar, C; Enkhtaivan, Z; Evans, SE; (2019) Revealing body proportions of the enigmatic choristodere reptile Khurendukhosaurus from Mongolia. Acta Palaeontologica Polonica , 64 (2) pp. 363-377. 10.4202/app.00561.2018 <https://doi.org/10.4202/app.00561.2018>. Green open access document_url: https://discovery-pp.ucl.ac.uk/id/eprint/10077666/1/Evans_Revealing%20body%20proportions%20of%20the%20enigmatic%20choristodere%20reptile%20Khurendukhosaurus%20from%20Mongolia_VoR.pdf