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The skull of Nothodipoides (Castoridae, Rodentia) and the occurrence of fossorial adaptations in beavers

William W. Korth
The skull of Nothodipoides (Castoridae, Rodentia) and the occurrence of fossorial adaptations in beavers
Journal of Paleontology (November 2007) 81 (6): 1533-1537

Abstract

The skull and mandible of Nothodipoides Korth are described. There are a number of adaptations present that are shared with other rodents with tooth-digging behavior (procumbent, elongated, and flattened incisors; anteriorly tilted occipital; strongly arched upper diastema). A new tribe of Castoroidinae, Nothodipoidini, is proposed for Nothodipoides and Microdipoides Korth and Stout, based on the fossorial adaptations of the skull, and their generally smaller size. It appears that fossorial adaptations have occurred in castorids at least three times: the Palaeocastorinae (Whitneyan through Arikareean), the primitive beaver Migmacastor (Arikareean), and the Nothodipoidini (late Barstovian through the Clarendonian).


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 81
Serial Issue: 6
Title: The skull of Nothodipoides (Castoridae, Rodentia) and the occurrence of fossorial adaptations in beavers
Author(s): Korth, William W.
Affiliation: Rochester Institute of Vertebrate Paleontology, Rochester, NY, United States
Pages: 1533-1537
Published: 200711
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 18
Accession Number: 2008-001069
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
N42°04'60" - N43°25'00", W102°04'60" - W99°45'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200801
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