- James Hopson
James Allen Hopson (1935-) is an American
paleontologist andprofessor (now retired) at theUniversity of Chicago . His work has focused on theevolution of the synapsids (a group ofamniotes that includes themammal s), and has been focused on the transition from basal synapsids to mammals, from the latePaleozoic through theMesozoic Eras. He received hisdoctorate at Chicago in 1965, and worked at Yale before returning to Chicago in 1967 as a faculty member inAnatomy , and has also been a research associate at theField Museum of Natural History since 1971.cite web |url=http://chronicle.uchicago.edu/960523/hopson.shtml |title=Quantrell Award: James Hopson |accessdate=2007-07-18 |last=Burton |first=Bill |date=1996-05-23 |publisher=The University of Chicago Chronicle ] He has also worked on thepaleobiology ofdinosaur s, and his work, along with that ofPeter Dodson , has become a foundation piece for the modern understanding of duckbill crests, social behavior, and variation.cite journal |last=Hopson |first=James A. |year=1975 |title=The evolution of cranial display structures in hadrosaurian dinosaurs |journal=Paleobiology |volume=1 |issue=1 |pages=21–43 ]elected publications
*Clark, J.M. & J.A. Hopson. 1985. Distinctive mammal-like reptile from Mexico and its bearing on the phylogeny of the Tritylodontidae. Nature, 315:398-400.
*Hopson, J.A. & H.R. Barghusen. 1986. An analysis of therapsid relationships. In: The Ecology and Biology of Mammal-like Reptiles (Ed. by N. Hotton III, P. D. MacLean, J. J. Roth, & E. C. Roth), pp. 83-106. Washington DC: Smithsonian Institution Press.
*Hopson, J.A. 1991. Systematics of the non-mammalian Synapsida and implications for patterns of evolution in synapsids. In: Controversial Views on the Origin of Higher Categories of Vertebrates (Ed. by H. P. Schultze & L. Trueb), Ithaca: Cornell University Press.
*Allin, E.F. & J.A. Hopson. 1991. Evolution of the auditory system in Synapsida ("mammal-like reptiles" and primitive mammals) as seen in the fossil record. In: The Evolutionary Biology of Hearing (Ed. by D. B. Webster, A. Popper, and R. Fay), New York: Springer-Verlag.
*Wible, J. R. & J. A. Hopson. 1993. Basicranial evidence for early mammal phylogeny. In: Mammal Phylogeny (Ed. by F. S. Szalay, M. J. Novacek, & M. C. McKenna), New York: Springer-Verlag.
*Hopson, J. A. & G. W. Rougier. 1993. Braincase structure in the oldest known skull of a therian mammal: Implications for mammalian systematics and cranial evolution. American Journal of Science, 293-A: 268-299.
*Hopson, J.A. 1995. Patterns of evolution in the manus and peers of non-mammalian therapsids. Journals of Vertebrate Paleontology, 15:615-639.References
Bibliography
A. W. Crompton, Farish A. Jenkins, Jr., Susan Hopson, Timothy J. Gaudin, and Matthew T. Carrano, "James Allen Hopson: A Biography", pages 507-515 in "Amniote Paleobiology: Perspectives on the Evolution of Mammals, Birds, and Reptiles: A volume honoring James Allen Hopson", edited by Matthew T. Carrano, Timothy J. Gaudin, Richard W. Blob, and John R. Wible. The University of Chicago Press, Chicago & London, 2006 ISBN 0-226-09477-4
External links
* [http://pondside.uchicago.edu/oba/faculty/hopson_j.html Organismal Biology & Anatomy] faculty homepage
* [http://pondside.uchicago.edu/ceb/faculty/hopson.html Committee on Evolutionary Biology] faculty homepage
* [http://maroon.uchicago.edu/news/articles/2005/02/22/professor_makes_ears.php Recent work] on the evolution of the mammalian ear
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