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Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity

Scolecophidians are small fossorial snakes that exhibit several osteological innovations, most of which driven by their extreme body miniaturization. Considering that data on skull morphology has proven to be relevant in terms of scolecophidian systematics and morphofunctional evolution, herein, we...

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Main Authors: Lira, Isabelle, Martins, Angele dos Reis
Format: Artigo
Language: Inglês
Published: Wiley 2021
Subjects:
Cobra - anatomia
Atlas
Crânio
Mandíbula
Escolecofídia
Online Access: https://repositorio.unb.br/handle/10482/40570
https://doi.org/10.1002/ar.24591
https://orcid.org/0000-0002-0193-4011
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spelling ir-10482-405702021-04-19T19:26:09Z Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity Lira, Isabelle Martins, Angele dos Reis Cobra - anatomia Atlas Crânio Mandíbula Escolecofídia Scolecophidians are small fossorial snakes that exhibit several osteological innovations, most of which driven by their extreme body miniaturization. Considering that data on skull morphology has proven to be relevant in terms of scolecophidian systematics and morphofunctional evolution, herein, we aim to describe in detail the skull, lower jaw, and cervical vertebrae of Amerotyphlops brongersmianus and A. reticulatus. Our results suggest that the investigated osteology of Amerotyphlops resembles several new world typhlopid species, with reduced interspecific variation in the basicranium, lower jaw and cervical vertebrae. Both species exhibit characters states that are typically conserved intragenerically amongst typhlopoids, such as the presence of a single parietal, paired supraoccipitals, and otooccipitals that are in contact medially, and the basioccipital participating in the formation of the foramen magnum. We discuss possible systematically important osteological skull variations among typhlopoids and provide a comprehensive comparison of these taxa based on literature and data gathered herein. 2021-04-19T19:25:38Z 2021-04-19T19:25:38Z 2021-02-26 Artigo LIRA, Isabelle; MARTINS, Angele. Digging into blindsnakes' morphology: Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity. Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology, ar.24591-17, 2021. DOI: https://doi.org/10.1002/ar.24591. https://repositorio.unb.br/handle/10482/40570 https://doi.org/10.1002/ar.24591 https://orcid.org/0000-0002-0193-4011 Inglês https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.24591 Acesso Restrito Wiley
institution REPOSITORIO UNB
collection REPOSITORIO UNB
language Inglês
topic Cobra - anatomia
Atlas
Crânio
Mandíbula
Escolecofídia
spellingShingle Cobra - anatomia
Atlas
Crânio
Mandíbula
Escolecofídia
Lira, Isabelle
Martins, Angele dos Reis
Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity
description Scolecophidians are small fossorial snakes that exhibit several osteological innovations, most of which driven by their extreme body miniaturization. Considering that data on skull morphology has proven to be relevant in terms of scolecophidian systematics and morphofunctional evolution, herein, we aim to describe in detail the skull, lower jaw, and cervical vertebrae of Amerotyphlops brongersmianus and A. reticulatus. Our results suggest that the investigated osteology of Amerotyphlops resembles several new world typhlopid species, with reduced interspecific variation in the basicranium, lower jaw and cervical vertebrae. Both species exhibit characters states that are typically conserved intragenerically amongst typhlopoids, such as the presence of a single parietal, paired supraoccipitals, and otooccipitals that are in contact medially, and the basioccipital participating in the formation of the foramen magnum. We discuss possible systematically important osteological skull variations among typhlopoids and provide a comprehensive comparison of these taxa based on literature and data gathered herein.
format Artigo
author Lira, Isabelle
Martins, Angele dos Reis
author_sort Lira, Isabelle
title Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity
title_short Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity
title_full Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity
title_fullStr Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity
title_full_unstemmed Digging into blindsnakes' morphology : Description of the skull, lower jaw, and cervical vertebrae of two Amerotyphlops (Hedges et al., 2014) (Serpentes, Typhlopidae) with comments on the typhlopoidean skull morphological diversity
title_sort digging into blindsnakes' morphology : description of the skull, lower jaw, and cervical vertebrae of two amerotyphlops (hedges et al., 2014) (serpentes, typhlopidae) with comments on the typhlopoidean skull morphological diversity
publisher Wiley
publishDate 2021
url https://repositorio.unb.br/handle/10482/40570
https://doi.org/10.1002/ar.24591
https://orcid.org/0000-0002-0193-4011
_version_ 1697760320770015232
score 13.657419

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