| High-resolution computed tomography study of the cranium of a fossil anthropoid primate, Parapithecus grangeri: new insights into the evolutionary history of primate sensory systems. | |
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MedLine Citation:
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PMID: 15470668 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Extant anthropoids have large brains, small olfactory bulbs, and high-acuity vision compared with other primates. The relative timing of the evolution of these characteristics may have important implications for brain evolution. Here computed tomography is used to examine the cranium of a fossil anthropoid, Parapithecus grangeri. It is found that P. grangeri had a relatively small brain compared with living primates. In addition, it had an olfactory bulb in the middle of the range for living primates. Methods for relating optic foramen area and other cranial measurements to acuity are discussed. Multiple regression is used to estimate retinal ganglion cell number in P. grangeri. Given currently available comparative data, P. grangeri seems to have had retinal ganglion cell counts intermediate for living primates, overlapping with the upper end of the range for strepsirrhines and possibly with the lower end for anthropoids. |
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Authors:
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Eliot C Bush; Elwyn L Simons; John M Allman |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology Volume: 281 ISSN: 1552-4884 ISO Abbreviation: - Publication Date: 2004 Nov |
Date Detail:
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Created Date: 2004-10-27 Completed Date: 2005-03-31 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 101234285 Medline TA: Anat Rec A Discov Mol Cell Evol Biol Country: United States |
Other Details:
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Languages: eng Pagination: 1083-7 Citation Subset: IM |
Copyright Information:
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(c) 2004 Wiley-Liss, Inc. |
Affiliation:
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Biology Division, California Institute of Technology, Pasadena, California, USA. ebush@bsd.uchicago.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brain / anatomy & histology*, physiology Cell Count Evolution Fossils* Haplorhini / anatomy & histology*, physiology Image Processing, Computer-Assisted Olfactory Bulb / anatomy & histology, physiology Olfactory Pathways / anatomy & histology*, physiology Optic Nerve / anatomy & histology, physiology Paleontology Retinal Ganglion Cells / cytology, physiology Skull / anatomy & histology*, physiology, radiography Smell / physiology Tomography, X-Ray Computed Vision, Ocular / physiology Visual Acuity / physiology Visual Pathways / anatomy & histology*, physiology |
| Grant Support | |
ID/Acronym/Agency:
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EY11759/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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