2020
|
Sign up to set email alerts
|

Abstract: Choristoderes are extinct neodiapsid reptiles that are well known for their unusual cranial anatomy, possessing an elongated snout and expanded temporal arches. Although choristodere skulls are well described externally, their internal anatomy remains unknown. An internal description was needed to shed light on peculiarities of the choristodere skull, such as paired gaps on the ventral surface of the skull that may pertain to the fenestra ovalis, and a putative neomorphic ossification in the lateral wall of th… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
13
0

Year Published

2020
2020
2022
2022

Publication Types

Select...
2

Relationship

1
1

Authors

Journals

citations
Cited by 4 publications
(13 citation statements)
references
References 71 publications
(167 reference statements)
0
13
0
Order By: Relevance
“…Supporting the hypothesis that Champsosaurus were atympanic is the inferred structural role of the stapes in Champsosaurus, where the stapes (likely homologous with the choristoderan neomorphic bone 56 ) is well sutured to the surrounding bones (primarily the quadrate, prootic, and opisthotic) and could not have articulated with a tympanum. In modern atympanic taxa, such as Sphenodon and Serpentes, the stapes articulates with the quadrate, and sound detection is limited to low frequency vibrations 85,86 that are better able to be conducted through the skull and transmit to the inner ear 86 .…”
Section: Resultsmentioning
confidence: 89%
See 1 more Smart Citation
“…Supporting the hypothesis that Champsosaurus were atympanic is the inferred structural role of the stapes in Champsosaurus, where the stapes (likely homologous with the choristoderan neomorphic bone 56 ) is well sutured to the surrounding bones (primarily the quadrate, prootic, and opisthotic) and could not have articulated with a tympanum. In modern atympanic taxa, such as Sphenodon and Serpentes, the stapes articulates with the quadrate, and sound detection is limited to low frequency vibrations 85,86 that are better able to be conducted through the skull and transmit to the inner ear 86 .…”
Section: Resultsmentioning
confidence: 89%
“…A canal originates at the posterior wall of the otic capsule and extends posteriorly through the opisthotic. We previously interpreted this as the passage for the glossopharyngeal nerve 25,56 (CN IX). More likely, this canal carried the perilymphatic duct ( Fig.…”
Section: Resultsmentioning
confidence: 99%
“…2b). Unlike in Champsosaurus lindoei (Dudgeon et al 2020: fig. 1), the pterygoid of Coeruleodraco jurassicus has a short posterior process that does not extend beyond the parietal table.…”
Section: The Neomorph Of Coeruleodraco Jurassicusmentioning
confidence: 86%
“…1), the pterygoid of Coeruleodraco jurassicus has a short posterior process that does not extend beyond the parietal table. Ventrally, the neomorph has a distinct projection, but it is unclear whether this ventral process (or the ventral margin) contacts the opisthotic as in C. lindoei (Dudgeon et al 2020: fig. 1).…”
Section: The Neomorph Of Coeruleodraco Jurassicusmentioning
confidence: 99%
See 1 more Smart Citation