NDLI: The Hypertrophy of the Tympanic Bulla in Three Species of Dasypodids (Mammalia, Xenarthra) from Argentina

Content Provider	Open Access Library (OALib)
Author	Squarcia Silvia Margarita Sidorkewicj Nora Silvia Casanave Emma Beatriz
Abstract	the morphology and relative size of the tympanic bulla of three species of dasypodids from argentina, chaetophractus villosus, c. vellerosus and zaedyus pichiy, were studied. the bulla was observed to be morphologically similar and evidently hypertrophied in the three species. the degree of hypertrophy was higher in c. vellerosus and c. villosus than in z pichiy. by means of ancova it was clear that, although c. villosus has a bigger skull than c. vellerosus, the relative size of their tympanic cavity was similar in both species. on the other hand, the skull of c. vellerosus and z pichiy are of similar size but the bulla was relatively shorter in the later
ISSN	07179502
Journal	International Journal of Morphology
DOI	10.4067/S0717-95022007000300021
Publisher	Scientific Electronic Library Online
Publisher Date	2007-01-01
Access Restriction	Open
Subject Keyword	Tympanic bulla. Chaetophractus vellerosus Zaedyus pichiy Chaetophractus villosus Middle ear
Content Type	Text
Resource Type	Article
Subject	Anatomy

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