Editing Geoffroy's tamarin (section)

== Taxonomy ==

Like the other tamarins and marmosets, Geoffroy's tamarin is a [[New World monkey]] classified within the family [[Callitrichidae]].<ref name=SAP/> In 2001, [[Colin Groves]] included the Callitrichids in the family [[Cebidae]], which also includes [[capuchin monkey]]s and [[squirrel monkey]]s, but in 2009 [[Anthony Rylands]] and [[Russell Mittermeier]] reverted to older classifications which considered Callitrichidae a separate family.<ref name=msw3/><ref name=SAP/> It is a member the genus ''Saguinus'', the genus containing most tamarins.<ref name=msw3/><ref name=SAP/> There are no recognized subspecies.<ref name=msw3/> In 1977, [[Philip Hershkovitz]] classified Geoffroy's tamarin as a subspecies of the [[cotton-top tamarin]] (''Saguinus oedipus''), which resides exclusively in [[Colombia]], based on fur coloration, cranial and mandibular morphology, and ear size.<ref name="Estrada2006">{{cite book |last= Estrada |first=A |title= New perspectives in the study of Mesoamerican primates: distribution, ecology, behavior, and conservation |year=2006}}</ref> However, more recent research indicates that the two taxa differ sufficiently to be considered separate species.<ref name=perspectives/><ref>{{Cite journal|title=Systematics of the ''Saguinus oedipus'' group of the bare-face tamarins: Evidence from facial morphology |author=Moore, A. J. |author2=Cheverud, J. M. |name-list-style=amp |year=1992 |journal=American Journal of Physical Anthropology |volume=89 |pages=73–84 |url=http://thalamus.wustl.edu/cheverudlab/publications/1992/Moore_Cheverud_AJPA_89.pdf |doi=10.1002/ajpa.1330890107 |pmid=1530063 |issue=1 |url-status=dead |archive-url=https://web.archive.org/web/20100702033527/http://thalamus.wustl.edu/cheverudlab/publications/1992/Moore_Cheverud_AJPA_89.pdf |archive-date=2 July 2010}}</ref> According to genetic analyses, the two species diverged approximately 1.2 million years ago.<ref name="Buckner2015">{{cite journal |last1=Buckner |first1=Janet C. |last2=Lynch Alfaro |first2=Jessica W. |last3=Rylands |first3=Anthony B. |last4=Alfaro |first4=Michael E. |title=Biogeography of the marmosets and tamarins (Callitrichidae) |journal=Molecular Phylogenetics and Evolution |date=January 2015 |volume=82 |pages=413–425 |doi=10.1016/j.ympev.2014.04.031|pmid=24857784 |bibcode=2015MolPE..82..413B }}</ref>