Comments on the Dentition of the Teiid Dicrodon Duméril and Bibron, 1839

 The teiid genera Dicrodon and Teius possess transverse bicuspid posterior teeth on the dentaries and maxillae. In general, their dentition is considered to be comparable, and little attention has been given to their dental morphology. Here the dentition of Dicrodon is described in detail and compar...

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Bibliographic Details
Authors: Brizuela, Santiago, Kristukat, Ralf Christian
Format: article
Status:Published version
Publication Date:2017
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/43590
Online Access:http://hdl.handle.net/11336/43590
Access Level:Open access
Keyword:Bicuspid
Lizard
Squamata
Teiidae
Transverse
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
Description
Summary: The teiid genera Dicrodon and Teius possess transverse bicuspid posterior teeth on the dentaries and maxillae. In general, their dentition is considered to be comparable, and little attention has been given to their dental morphology. Here the dentition of Dicrodon is described in detail and compared to that of Teius. The dentition of Dicrodon differs from that of Teius in the following characters: both cusps are more concentrically placed (in occlusal view); the lingual cusp is developed on a crescent ridge; the crescent ridge may present mesial and distal protuberances; the lingual cusp is shorter (never as tall) as the labial cusp; and the intercuspid ridge is incomplete (missing in the lingual cusp). These characters allow the dental diagnosis of both genera.