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The Quintessential NaturalistHonoring the Life and Legacy of Oliver P. Pearson$
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Douglas Kelt and Deborah Kaspin

Print publication date: 2007

Print ISBN-13: 9780520098596

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520098596.001.0001

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Interspecific Scaling and Ontogenetic Growth Patterns of the Skull in Living and Fossil Ctenomyid and Octodontid Rodents (Caviomorpha: Octodontoidea)

Interspecific Scaling and Ontogenetic Growth Patterns of the Skull in Living and Fossil Ctenomyid and Octodontid Rodents (Caviomorpha: Octodontoidea)

Efecto Del Tamaño Entre Especies Y Patrón De Crecimiento Ontogenético Del Cráneo En Roedores Ctenómidos Y Octodóntidos (Caviomorpha: Octodontoidea)

Chapter:
(p.944) (p.945) Interspecific Scaling and Ontogenetic Growth Patterns of the Skull in Living and Fossil Ctenomyid and Octodontid Rodents (Caviomorpha: Octodontoidea)
Source:
The Quintessential Naturalist
Author(s):

Aldo I. Vassallo

Matías S. Mora

Publisher:
University of California Press
DOI:10.1525/california/9780520098596.003.0029

This chapter assesses the effect of size on skull attributes of ctenomyid and octodontid rodent species using an allometric approach. It focuses on traits that have long been considered of relevance for tooth digging, such as the development of the mandibular angle and masseteric crest, and the robustness of incisors. The chapter reveals important shape differences between Ctenomys, on one hand, and octodontid genera (except Spalacopus and, partly, Aconaemys) plus the early ctenomyid Actenomys, on the other, in interspecific comparisons of adult specimens.

Keywords:   skull attributes, ctenomyid, octodontid, allometric approach, Ctenomys, octodontid genera, ctenomyid Actenomys, interspecific comparisons, adult specimens

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