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Citation
MILNE, N., VIZCAINO, S.F. & FERNICOLA, J.C. (2009). A 3D geometric morphometric analysis of digging ability in the extant and fossil cingulate humerus. Journal of Zoology, 278(1), 48-56.
Title
A 3D geometric morphometric analysis of digging ability in the extant and fossil cingulate humerus
Author
Year
2009
Published in
Abstract
Digging ability in armadillos has been shown to be closely related to the relative length of the olecranon process of the ulna. This study uses geometric morphometrics to examine the relationship between humeral shape, digging ability and size in a range of living and fossil cingulates. The extant species in the sample include representatives of 11 species of armadillo, while the fossil specimens include three species of fossil armadillos (Peltephilus, Proeutatus and Eutatus) and three Glyptodonts (Propalaeohoplophorus, Glyptodon and Neosclerocalyptus). The results show that in general, living species with good digging ability have larger sites for muscle attachment, particularly the proximal tubercles and the crests descending therefrom, and the epicondylar region at the distal end of the humerus. Some differences were found in the smallest armadillo (Chlamyphorus truncatus), which seems to have a different method of digging. The proportions of the olecranon process would indicate good digging ability in some glyptodonts, but humeral features do not fit with this interpretation and the differences may be related to large size. The relationship between cingulate phylogeny and humeral morphology is also examined, and it seems that while cingulates are to some extent constrained by their phylogeny, many of the humeral features are directly related to digging.
Identifier
http://dx.doi.org/10.1111/j.1469-7998.2008.00548.x
Identifier
MILNE, N., VIZCAINO, S.F. & FERNICOLA, J.C. (2009). A 3D geometric morphometric analysis of digging ability in the extant and fossil cingulate humerus. Journal of Zoology, 278(1), 48-56.
Identifier
0952-8369
Identifier
http://repository.uwa.edu.au:80/R/-?func=dbin-jump-full&object_id=26868&silo_library=GEN01
ISBN/ISSN
0952-8369
Subject
Department/School
Type
Journal article
Additional Information
Link to Publisher's website supplied in Alternative Location.
Alternative Location
DOI
Persistent URL
http://repository.uwa.edu.au:80/R/-?func=dbin-jump-full&object_id=26868&silo_library=GEN01
Related collections
Life and Physical Sciences > Anatomy and Human Biology