Partial humeri of two Miocene Colombian primates.

Published

Journal Article

Distal portions of humeri from two Miocene Colombian primates were recovered during field work in 1986. The larger IGM 183420 is very similar in size and morphology to the humerus included in the type specimen of Cebupithecia sarmientoi, recovered from La Venta in 1945 (Stirton and Savage: Serv. Geol. Nac. Bogata 7:345-356, 1951) and is assigned to this taxon. IGM 183420 presents a number of features of the humerus associated with clinging postural behaviors in living platyrrhines, including a medial epicondyle with very little dorsal angulation, a cylindrical trochlea, and a contact facet for the coronoid process of the ulna. In these and other features Cebupithecia most closely resembles the extant genus Pithecia. IGM 183512 is approximately the size of Saimiri sciureus and is very similar in morphology to the humerus of this small arboreal quadruped. The medial epicondyle is more dorsally angled, the medial lip of the trochlea is more pronounced and the capitulum is less spherical as compared to Cebupithecia. This fossil is assigned to the taxon Neosaimiri fieldsi.

Full Text

Duke Authors

Cited Authors

  • Meldrum, DJ; Fleagle, JG; Kay, RF

Published Date

  • March 1, 1990

Published In

Volume / Issue

  • 81 / 3

Start / End Page

  • 413 - 422

PubMed ID

  • 2327481

Pubmed Central ID

  • 2327481

Electronic International Standard Serial Number (EISSN)

  • 1096-8644

International Standard Serial Number (ISSN)

  • 0002-9483

Digital Object Identifier (DOI)

  • 10.1002/ajpa.1330810310

Language

  • eng