Seattle Children's Hospital Research Institute Sign up for PNAS Online eTocs
Link: Info for AuthorsLink: Editorial BoardLink: AboutLink: SubscribeLink: AdvertiseLink: ContactLink: Sitemap Link: PNAS Home
Proceedings of the National Academy of Sciences
Link: Current Issue "" Link: Archives "" Link: Online Submission ""  Link: Advanced Search



This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a colleague
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My File Cabinet
Right arrow Download to citation manager
Right arrow Request Copyright Permission
Citing Articles
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via ISI Web of Science (9)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Simons, E. L.
Right arrow Articles by Fleagle, J. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Simons, E. L.
Right arrow Articles by Fleagle, J. G.
GeoRef
Right arrow GeoRef Citation
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg  
What's this?

 Previous Article  | Table of Contents |  Next Article 

Vol. 96, Issue 5, 2559-2562, March 2, 1999

Anthropology
 Canine sexual dimorphism in Egyptian Eocene anthropoid primates: Catopithecus and Proteopithecus

Elwyn L. Simons*,dagger , J. Michael PlavcanDagger , and John G. Fleagle§

* Department of Biological Anthropology and Anatomy and Duke Primate Center, Duke University, 3705 Erwin Road, Durham, NC 27705-5000; Dagger  Department of Anatomy, New York College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY 11568; and § Department of Anatomical Sciences, Health Sciences Center, State University of New York, Stony Brook, NY 11794-8081

Contributed by Elwyn L. Simons, December 29, 1998

Two very small late Eocene anthropoid primates, Catopithecus browni and Proteopithecus sylviae, from Fayum, Egypt show evidence of substantial sexual dimorphism in canine teeth. The degree of dimorphism suggests that these early anthropoids lived in social groups with a polygynous mating system and intense male-male competition. Catopithecus and Proteopithecus are smaller in estimated body size than any living primates showing canine dimorphism. The origin of canine dimorphism and polygyny in anthropoids was not associated with the evolution of large body size.

dagger    To whom reprint requests should be addressed. e-mail: esimons{at}acpub.duke.edu.

Copyright © 1999 by The National Academy of Sciences  0027-8424/99/962559-4$2.00/0
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg    What's this?