The Anatomy of the Head of Ctenosaura pectinata

Hecht, Max K.; Oelrich, Thomas M.

doi:10.2307/1440299

Cited by 50 publications

(54 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A small foramen is present posterior to an oblique ridge, where the posterolateral tongue enters the nasal main shaft. This foramen probably represents the external exit of the lateral ethmoid nerve, as present in Ctenosaura pectinata (Oelrich, 1956), and differs from the paired basins pierced by a dorsal foramen present in the center of the Sphenodon nasal (Fig. 5A) when viewed in lateral aspect.…”

Section: Skullmentioning

confidence: 97%

A new eilenodontine (Lepidosauria, Sphenodontidae) from the Lower Cretaceous of central Patagonia

Apesteguı́a

Carballido

2014

Journal of Vertebrate Paleontology

View full text Add to dashboard Cite

Taylor & Francis makes every effort to ensure the accuracy of all the information (the "Content") contained in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. Any opinions and views expressed in this publication are the opinions and views of the authors, and are not the views of or endorsed by Taylor & Francis. The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content.

show abstract

Section: Skullmentioning

confidence: 97%

A new eilenodontine (Lepidosauria, Sphenodontidae) from the Lower Cretaceous of central Patagonia

Apesteguı́a

Carballido

2014

Journal of Vertebrate Paleontology

View full text Add to dashboard Cite

show abstract

“…Skull was hand prepared, diluted Sodium hypochlorite was used in to remove tissues attached to the bone. Data on skeletal characters followed standard terminology (Moody 1980;Romer 1956;Oelrich 1956). Diagnostic osteological characters specified by Moody (1980) for Calotes and Pseudocalotes were compared with Oriocalotes for further evidence of systematic association.…”

Section: Sno Taxonmentioning

confidence: 99%

On the systematic status of the genus Oriocalotes Günther, 1864 (Squamata: Agamidae: Draconinae) with the description of a new species from Mizoram state, Northeast India

Giri

Chaitanya

Mahony

et al. 2019

Zootaxa

585

View full text Add to dashboard Cite

The montane agamid lizard genus Oriocalotes is currently considered monotypic, represented by the species, O. paulus. The systematic status of this taxon has remained questionable since its initial descriptions in the mid-1800s. A detailed molecular and morphological study was carried out to assess the validity of this genus, and its systematic position within the Asian agamid subfamily, Draconinae. Freshly collected and historical museum specimens from the type locality of O. paulus were examined morphologically, along with additional samples collected from localities in Mizoram state, Northeast India. Utilising newly generated molecular sequences (two mitochondrial and three nuclear genes), combined with those previously published for representative genera from the subfamilies Draconinae and Agaminae, Maximum Likelihood and Bayesian phylogenetic trees were constructed. Phylogenetic results suggest that Oriocalotes is part of the widespread South and Southeast Asian radiation of Calotes. Comparative morphological studies (including external morphology, hemipenis and osteology) between Oriocalotes and related genera further support this systematic placement. Oriocalotes is herein regarded as a junior subjective synonym of Calotes. Calotes paulus comb. nov. is also assigned a lectotype and given a detailed redescription based on the lectotype, paralectotypes and additional topotypic material. Furthermore, the specimens collected from Mizoram populations are found to be morphologically and genetically distinct from Calotes paulus comb. nov., and are described herein as a new species, Calotes zolaiking sp. nov.

show abstract

“…Among non‐avian reptiles, Meckel's cartilage and the mandibular neurovasculature typically pass through the Meckelian fossa together but are enclosed by distinct canals further rostrally (Oelrich, 1956). This division occurs just rostral to the medially branching oral intermandibular nerve (lingual nerve, mylohyoid nerve; Abdel‐Kader et al, 2011; Oelrich, 1956; Poglayen‐Neuwall, 1953; Watkinson, 1906) and is often obscured medially by the splenial in intact mandibles (Figure 4).…”

Section: Discussionmentioning

confidence: 99%

“…Among non-avian reptiles, Meckel's cartilage and the mandibular neurovasculature typically pass through the Meckelian fossa together but are enclosed by distinct canals further rostrally (Oelrich, 1956).…”

Section: The Mandibular Canal Morphology and Homologymentioning

confidence: 99%

“…In sauropsids, the trigeminal nerve courses from sensory and motor nuclei in the mid‐ and hindbrain, exiting the brain through roots extending from the pons. The cell bodies of the sensory root form two trigeminal ganglia (i.e., profundal and Gasserian), which are variably fused (into a single “trigeminal ganglion”) and located alongside the braincase with variable bony enclosure (Barbas‐Henry & Lohman, 1986; Holliday & Witmer, 2009; Hopson, 1979; Oelrich, 1956; Willard, 1915; Witmer et al, 2008). Three divisions extend rostrally from the ganglion.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ecomorphological patterns in trigeminal canal branching among sauropsids reveal sensory shift in suchians

et al. 2023

View full text Add to dashboard Cite

The vertebrate trigeminal nerve is the primary mediator of somatosensory information from nerve endings across the face, extending nerve branches through bony canals in the face and mandibles, terminating in sensory receptors. Reptiles evolved several extreme forms of cranial somatosensation in which enhanced trigeminal tissues are present in species engaging in unique mechanosensory behaviors. However, morphology varies by clade and ecology among reptiles. Few lineages approach the extreme degree of tactile somatosensation possessed by crocodylians, the only remaining members of a clade that underwent an ecological transition from the terrestrial to semiaquatic habitat, also evolving a specialized trigeminal system. It remains to be understood how trigeminal osteological correlates inform how adaptations for enhanced cranial sensation evolved in crocodylians. Here we identify an increase in sensory abilities in Early Jurassic crocodylomorphs, preceding the transitions to a semiaquatic habitat. Through quantification of trigeminal neurovascular canal branching patterns in an extant phylogenetic bracket we quantify and identify morphologies associated with sensory behaviors in representative fossil taxa, we find stepwise progression of increasing neurovascular canal density, complexity, and distribution from the primitive archosaurian to the derived crocodilian condition. Model‐based inferences of sensory ecologies tested on quantified morphologies of extant taxa with known sensory behaviors indicate a parallel increase in sensory abilities among pseudosuchians. These findings establish patterns of reptile trigeminal ecomorphology, revealing evolutionary patterns of somatosensory ecology.

show abstract

The Anatomy of the Head of Ctenosaura pectinata

Cited by 50 publications

References 0 publications

A new eilenodontine (Lepidosauria, Sphenodontidae) from the Lower Cretaceous of central Patagonia

A new eilenodontine (Lepidosauria, Sphenodontidae) from the Lower Cretaceous of central Patagonia

On the systematic status of the genus Oriocalotes Günther, 1864 (Squamata: Agamidae: Draconinae) with the description of a new species from Mizoram state, Northeast India

Ecomorphological patterns in trigeminal canal branching among sauropsids reveal sensory shift in suchians

Contact Info

Product

Resources

About