[Taxacom] Chimps and humans

John Grehan jgrehan at sciencebuff.org
Sat Sep 5 22:59:38 CDT 2009

I'm familiar with the Lockwood et al paper which uses some phenetic methods in morphology and uses agreement with the molecular theory to assert in formativeness.

John Grehan 

-----Original Message-----
From: taxacom-bounces at mailman.nhm.ku.edu [mailto:taxacom-bounces at mailman.nhm.ku.edu] On Behalf Of Kenneth Kinman
Sent: Saturday, September 05, 2009 10:00 PM
To: taxacom at mailman.nhm.ku.edu
Subject: [Taxacom] Chimps and humans

      I should note that I misspelled the name.  It is actually Plasmodium pitheci.  And also, below is more information on the 2004 paper, which morphologically supports a specific chimp-human clade that agrees with the molecular topology.

Morphometrics and hominoid phylogeny: Support for a chimpanzee-human clade and differentiation among great ape subspecies Charles A.
Lockwood, William H. Kimbel, and
John M. Lynch, 2004.
Taxonomic and phylogenetic analyses of great apes and humans have identified two potential areas of conflict between molecular and morphological data: phylogenetic relationships among living species and differentiation of great ape subspecies. Here we address these problems by using morphometric data. Three-dimensional landmark data from the hominoid temporal bone effectively quantify the shape of a complex element of the skull. Phylogenetic analysis using distance-based methods corroborates the molecular consensus on African ape and human phylogeny, strongly supporting a Panâ€"Homo clade. Phenetic differentiation of great ape subspecies is pronounced, as suggested previously by mitochondrial DNA and some morphological studies. These results show that the hominoid temporal bone contains a strong phylogenetic signal and reveal the potential for geometric morphometric analysis to shed light on phylogenetic relationships. 


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