The Tiny Skull of the Peruvian Gecko Pseudogonatodes barbouri (Gekkota: Sphaerodactylidae) Obtained via a Divide-And-Conquer Approach to Morphological Data Acquisition

Bauer, Aaron M.; Beach-Mehrotra, Mallika; Bermudez, Yarima; Clark, Geneva E.; Daza, Juan D.; Glynne, Elizabeth; Hagyari, David; Harnden, Jennifer M.; Holovacs, Nicholas T.; Kanasiro, André; Lofthus, Amanda J.; Pierce, Zachary W.; Aaliyah, Ryan; Syed, Samreena; Vallejo-Pareja, María Camila; Walker, Bethany A.; Willett, James R.

doi:10.2994/sajh-d-17-00113.1

Cited by 13 publications

(1 citation statement)

References 23 publications

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“…The use of x‐ray computed tomography and digital segmentation software allows for the study of cranial osteology and visualization of the skull in three dimensions for species that are too small to be studied easily using traditional dry or gross dissection methods. Many micro‐CT studies, however, have a sample size of only a single specimen (e.g., Bauer et al, 2018; Bell et al, 2023; Bell & Mead, 2014; Dickinson et al, 2018; Kearney et al, 2005; Maisano et al, 2006). Though studies that provide a description of a single specimen are informative and vital contributions to the existing literature, they can only provide a baseline description of that specimen and do not present the morphological variation in the species.…”

Section: Introductionmentioning

confidence: 99%

Variation in the cranial osteology of the amphisbaenian genus Zygaspis based on high‐resolution x‐ray computed tomography

Meza,

Bell,

Daza

et al. 2023

The Anatomical Record

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Amphisbaenians are a specialized fossorial group of reptiles, having developed head‐first burrowing, a specialized skull architecture, and an elongated body. This group is generally small‐bodied, with some species possessing skulls only a few millimeters long. In this study, we used high‐resolution x‐ray computed tomography to compare the skulls of 15 specimens from seven of the eight species in the amphisbaenian genus Zygaspis (Zygaspis dolichomenta, Zygaspis ferox, Zygaspis quadrifrons, Zygaspis kafuensis, Zygaspis nigra, Zygaspis vandami, and Zygaspis violacea). Both interspecific and intraspecific variation, including asymmetry, is observed among the cranial bones of the specimens. There are unique morphological features on some cranial bones, including the premaxilla and ectopterygoid of Z. quadrifrons, the pterygoid and vomer of Z. kafuensis, and the extracolumella of Z. nigra. Sexual dimorphism has been previously reported for the species Z. quadrifrons and is observed here as well.

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Section: Introductionmentioning

confidence: 99%

Variation in the cranial osteology of the amphisbaenian genus Zygaspis based on high‐resolution x‐ray computed tomography

Meza,

Bell,

Daza

et al. 2023

The Anatomical Record

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The skull of the semi‐aquatic neotropical lizard Echinosaura horrida (Gymnophthalmidae: Cercosaurinae) reveals new synapomorphies within Gymnophthalmoidea

Hernández‐Morales,

Ngo,

Abdelhadi

et al. 2024

The Anatomical Record

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The rough teiid or water cork lizard (Echinosaura horrida) is a small reptile from Colombia and Ecuador placed in a genus that contains eight species and well‐known phylogenetic relationships. Here we provide a detailed description and illustrations, bone by bone, of its skull, while we discussed its intraspecific variation by comparing high‐resolution computed tomography data from two specimens and the variation within the genus by including previously published data from Echinosaura fischerorum. This allowed to propose putative diagnostic character states for Echinosaura horrida and synapomorphies for Echinosaura. In addition, our discussion includes broader comparisons of new character transformations of the jugal, vomer, orbitosphenoid, and hyoid. These characters are important for diagnosing clades at different levels of the Gymnophthalmoidea phylogeny.

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A Look in to the Neurocranium of Living and Extinct Lepidosauria

Paulina‐Carabajal

Jiménez-Huidobro²,

Triviño³

et al. 2022

Paleoneurology of Amniotes

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The Tiny Skull of the Peruvian Gecko Pseudogonatodes barbouri (Gekkota: Sphaerodactylidae) Obtained via a Divide-And-Conquer Approach to Morphological Data Acquisition

Cited by 13 publications

References 23 publications

Variation in the cranial osteology of the amphisbaenian genus Zygaspis based on high‐resolution x‐ray computed tomography

Variation in the cranial osteology of the amphisbaenian genus Zygaspis based on high‐resolution x‐ray computed tomography

The skull of the semi‐aquatic neotropical lizard Echinosaura horrida (Gymnophthalmidae: Cercosaurinae) reveals new synapomorphies within Gymnophthalmoidea

A Look in to the Neurocranium of Living and Extinct Lepidosauria

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