Three-dimensional reconstruction of the skull of Siagonodon exigumm sp. nov. based on µ-CT data in dorsal (A, D, G), lateral (b, e, h), and ventral (c, f, i) views. MNRJ 27562 (a–c), MNHN-RA-2023.0001 (d–f), MNRJ 27558 (g–i). Abbreviations: bo basioccipital; fr frontal; ma maxilla; na nasal; ot otooccipital; pa parietal; pal palatine; pbs parabasisphenoid; pf prefrontal; pm premaxilla; pr prootic; pt pterygoid; sm septomaxilla; so supraoccipital; vo vomer.

 
 
  Part of: Martins A, Folly M, Ferreira GN, Garcia da Silva AS, Koch C, Fouquet A, Machado A, Lopes RT, Pinto R, Rodrigues MT, Passos P (2023) An evolutionary paradox on threadsnakes: Phenotypic and molecular evidence reveal a new and remarkably polymorphic species of Siagonodon (Serpentes: Leptotyphlopidae: Epictinae) from Amazonia. Vertebrate Zoology 73: 345-366. https://doi.org/10.3897/vz.73.e98170