eprintid: 10129823 rev_number: 17 eprint_status: archive userid: 608 dir: disk0/10/12/98/23 datestamp: 2021-06-18 15:21:35 lastmod: 2022-07-19 09:29:18 status_changed: 2021-06-18 15:21:35 type: article metadata_visibility: show creators_name: Skutschas, PP creators_name: Sennikov, AG creators_name: Syromyatnikova, EV creators_name: Vitenko, DD creators_name: Parakhin, IA creators_name: Bapinaev, RA creators_name: Evans, SE title: A lepidosauromorph specimen from the Middle Jurassic (Bathonian) Moskvoretskaya Formation of the Moscow Region, Russia ispublished: pub divisions: UCL divisions: B02 divisions: C08 divisions: D09 divisions: F96 keywords: Lepidosauromorpha, Middle jurassic, Bathonian, Moscow Region, Russia note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. abstract: A fragmentary diapsid left maxilla from the Bathonian Peski locality in Moscow Region, previously referred to Choristodera, is identified as Lepidosauromorpha indet. This specimen represents the first fossil record of basal lepidosauromorphs in the Middle Jurassic of European Russia. Among basal lepidosauromorphs, the maxilla from the Peski locality resembles those of the Middle Triassic Fraxinisaura and the contemporary Middle Jurassic (Bathonian) Marmoretta in subpleurodont tooth implantation, a relatively low dorsal process, and high keeled teeth with gently recurved apices and striae on the lingual side. This similarity suggests possible close relationships of Fraxinisaura, Marmoretta and the Peski form. The recognition of a basal lepidosauromorph in the fauna of the Peski locality extends the known geographical range of the Bathonian non-lepidosaurian lepidosauromorphs and demonstrates their wide Laurasian distribution at this time. It is additional evidence that Bathonian vertebrate faunas of Europe and Western Siberia were similar in composition. date: 2022 date_type: published publisher: Informa UK Limited official_url: http://dx.doi.org/10.1080/08912963.2021.1935921 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1870326 doi: 10.1080/08912963.2021.1935921 lyricists_name: Evans, Susan lyricists_id: SEEVA33 actors_name: Evans, Susan actors_id: SEEVA33 actors_role: owner full_text_status: public publication: Historical Biology volume: 34 number: 3 pagerange: 566-570 citation: Skutschas, PP; Sennikov, AG; Syromyatnikova, EV; Vitenko, DD; Parakhin, IA; Bapinaev, RA; Evans, SE; (2022) A lepidosauromorph specimen from the Middle Jurassic (Bathonian) Moskvoretskaya Formation of the Moscow Region, Russia. Historical Biology , 34 (3) pp. 566-570. 10.1080/08912963.2021.1935921 <https://doi.org/10.1080/08912963.2021.1935921>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10129823/1/Russian%20MS%20.pdf