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. 2025 Jun 18;12(6):250435. doi: 10.1098/rsos.250435

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© 2025 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Photographs (top of panels) and rendered CT scans (bottom of panels) of distal caudal vertebrae of UMNH VP 16266 (holotype, Bolg amondol) — Photographs (top of panels) and rendered CT scans (bottom of panels) of distal caudal vertebrae of UMNH VP 16266 (holotype, Bolg amondol). (A) Distal caudal vertebra UMNH VP 16266.29 in six anatomical views. (B) Distal caudal vertebra UMNH VP 16266.30 in six anatomical views. (C–E) Partial distal caudal vertebrae. Anatomical abbreviations: con, posterior condyle; cot, anterior cotyle; mr, medial ridge on centrum; nc, neural canal; ns, neural spine; poz, postzygapophysis; prz, prezygapophysis; tp, transverse process.