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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 left nasals of Bolg amondol to select anguimorph and monstersaur taxa in dorsal view — Comparisons of left nasals of Bolg amondol to select anguimorph and monstersaur taxa in dorsal view. (A) Line drawing of UMNH VP 16266.1 (holotype, Bolg amondol). (B) Line drawing of the left nasal of ZPAL MgR III/64 (holotype, Gobiderma pulchrum, modified from [12]. (C) Mirrored line drawing of the right nasal of NHMG 009318 (holotype, Chiangshia nankangensis, modified from [13]). (D) Line drawing of the left nasal of UF 153328 (Heloderma horridum). (E) Line drawing of the left nasal of IGM 3/14 (holotype, Estesia mongoliensis, modified from [5]). Anatomical abbreviations: en, external naris; pmxp, premaxillary process; snpr, supranasal process.