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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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Comparisons of positioning of chevron facets on caudal vertebrae of select anguimorph taxa — Comparisons of positioning of chevron facets on caudal vertebrae of select anguimorph taxa. (A) Bolg amondol distal caudal vertebra UMNH VP 16266.29 in ventral and left-lateral views. (B) LACM 163584 Heloderma horridum middle caudal vertebra in left-lateral view. (C) LACM 163943 Varanus albigularis middle caudal vertebra in left-lateral view. Anatomical abbreviations: cf, chevron articular facet; con, posteriorarticular condyle.