Allometry, sexual dimorphism, and phylogeny: A cladistic analysis of extant African papionins using craniodental data |
| |
Authors: | Christopher C Gilbert Stephen R Frost |
| |
Institution: | a Department of Anthropology, P.O. Box 208277, Yale University, New Haven, CT 06520-8277, USA b Yale Institute for Biospheric Studies, P.O. Box 208277, Yale University, New Haven, CT 06520-8277, USA c Department of Anthropology, 308 Condon Hall, 1218 University of Oregon, Eugene, OR 97403, USA d Department of Anthropology, University at Albany, 1400 Washington Avenue, Albany, NY 12222, USA |
| |
Abstract: | This study conducts a phylogenetic analysis of extant African papionin craniodental morphology, including both quantitative and qualitative characters. We use two different methods to control for allometry: the previously described narrow allometric coding method, and the general allometric coding method, introduced herein. The results of this study strongly suggest that African papionin phylogeny based on molecular systematics, and that based on morphology, are congruent and support a Cercocebus/Mandrillus clade as well as a Papio/Lophocebus/Theropithecus clade. In contrast to previous claims regarding papionin and, more broadly, primate craniodental data, this study finds that such data are a source of valuable phylogenetic information and removes the basis for considering hard tissue anatomy “unreliable” in phylogeny reconstruction. Among highly sexually dimorphic primates such as papionins, male morphologies appear to be particularly good sources of phylogenetic information. In addition, we argue that the male and female morphotypes should be analyzed separately and then added together in a concatenated matrix in future studies of sexually dimorphic taxa. Character transformation analyses identify a series of synapomorphies uniting the various papionin clades that, given a sufficient sample size, should potentially be useful in future morphological analyses, especially those involving fossil taxa. |
| |
Keywords: | Molecules Morphology Congruence Sexual selection Papio Lophocebus Theropithecus Cercocebus Mandrillus |
本文献已被 ScienceDirect 等数据库收录! |
|