Clemens' research focussed on the evolution of mammals in the Mesozoic Era, both their origin and diversification as well as the microstructure of the early mammalian jaw and teeth. He was also noted for his research into the extinction of the dinosaurs at the Cretaceous–Paleogene boundary (K–Pg or K-T boundary). Clemens supported a view contrary to the more familiar Alvarez hypothesis model of sudden catastrophic extinction precipitated by an asteroid, which was proposed in part by Walter Alvarez, also at the University of California, Berkeley, at the time. Clemens' research in western North America suggests that the dinosaurs were already undergoing gradual extinction prior to the end of the Cretaceous and that other groups of vertebrates were not severely impacted by the event.
Selected publicationsedit
Clemens, William A. (1997). "Characterization of enamel microstructure and application of the origins of prismatic structures in systematic analyses", pages 85–112 in W. V. Koenigswald (ed.) Tooth enamel microstructure. Rotterdam: A. A. Balkema.
Clemens, William A. (2001). "Patterns of mammalian evolution across the Cretaceous-Tertiary boundary". Mitteilungen aus dem Museum für Naturkunde in Berlin, Zoologische Reihe77:175–191.
Clemens, William A. (2002). "Evolution of the mammalian fauna across the Cretaceous-Tertiary boundary in northeastern Montana and other areas of the Western Interior." Geological Society of America, Special Paper 361: 217–245.
Clemens, William A. (2006). Ecological diversification of mammals during the Mesozoic, the Age of Dinosaurs. McGraw-Hill.
^"Past Award Winners and Grant Recipients". Society of Vertebrate Paleontology. Retrieved 18 May 2024.
^"In Memoriam: William A. Clemens Jr., Professor of Paleontology and Integrative Biology, Emeritus, UC Berkeley, 1932-2020". University of California Academic Senate. Retrieved 18 May 2024.
^Polly, P. D.; Lillegraven, J.A.; Luo, Z-X (2005). "Introduction: Paleomammalogy in honor of Professor Emeritus William Alvin Clemens, Jr". Journal of Mammalian Evolution. 12: 3–8.
^Sanders, Robert (1 December 2020). "William Clemens, expert on fossil mammals, dies at 88". Berkeley News. Retrieved 2 December 2020.
^"UCMP salutes Bill Clemens, page 1". ucmp.berkeley.edu.
January 01, 1970
william, clemens, william, alvin, clemens, 1932, november, 2020, paleontologist, university, california, berkeley, faculty, department, paleontology, from, 1967, then, department, integrative, biology, from, 1994, retirement, curator, museum, paleontology, cle. William Alvin Clemens Jr May 15 1932 November 17 2020 5 was a paleontologist at the University of California at Berkeley He was faculty of the Department of Paleontology from 1967 then the Department of Integrative Biology from 1994 to his retirement and curator of the UC Museum of Paleontology Clemens was also director of the museum 1987 1989 and chair of the Department of Paleontology 1987 1989 He was awarded a Guggenheim Fellowship 1974 75 a U S Senior Scientist Award by the Alexander von Humboldt Foundation the Romer Simpson Medal 2006 6 and was made a Fellow of the California Academy of Sciences William Alvin Clemens Jr Clemens in 2008Born 1932 05 14 May 14 1932 3 Berkeley CaliforniaDiedNovember 17 2020 2020 11 17 aged 88 Berkeley CaliforniaEducationBA PhDAlma materUniversity of California BerkeleyKnown forResearch on Mesozoic mammals K Pg extinctionAwardsGuggenheim Fellowship 1974 1975Humboldt Research FellowshipFellow American Association for the Advancement of ScienceFellow Geological Society of AmericaFellow Zoological Society of LondonFellow Linnean Society of LondonPresident Society of Vertebrate Paleontology 1992 1994 1 Joseph T Gregory Award Society of Vertebrate Paleontology 2002 2 Romer Simpson Medal 2006Scientific careerFieldsVertebrate Paleontology GeologyInstitutionsUniversity of California Berkeley University of Kansas LawrenceDoctoral advisorDonald E SavageWebsitesenate wbr universityofcalifornia wbr edu wbr in memoriam wbr files wbr william clemens wbr html Contents 1 Early life and education 2 Research 3 Selected publications 4 ReferencesEarly life and education editClemens was born in Berkeley California After graduating from Berkeley High School he attended the University of California Berkeley earning a B A in paleontology in 1954 and a Ph D in 1960 From 1961 to 1967 he served as faculty in the Zoology Department at the University of Kansas and as the curator of higher vertebrates in their Museum of Natural History 7 Research editClemens research focussed on the evolution of mammals in the Mesozoic Era both their origin and diversification as well as the microstructure of the early mammalian jaw and teeth He was also noted for his research into the extinction of the dinosaurs at the Cretaceous Paleogene boundary K Pg or K T boundary Clemens supported a view contrary to the more familiar Alvarez hypothesis model of sudden catastrophic extinction precipitated by an asteroid which was proposed in part by Walter Alvarez also at the University of California Berkeley at the time Clemens research in western North America suggests that the dinosaurs were already undergoing gradual extinction prior to the end of the Cretaceous and that other groups of vertebrates were not severely impacted by the event Selected publications editClemens William A 1997 Characterization of enamel microstructure and application of the origins of prismatic structures in systematic analyses pages 85 112 in W V Koenigswald ed Tooth enamel microstructure Rotterdam A A Balkema Clemens William A 2001 Patterns of mammalian evolution across the Cretaceous Tertiary boundary Mitteilungen aus dem Museum fur Naturkunde in Berlin Zoologische Reihe 77 175 191 Clemens William A 2002 Evolution of the mammalian fauna across the Cretaceous Tertiary boundary in northeastern Montana and other areas of the Western Interior Geological Society of America Special Paper 361 217 245 Clemens William A 2006 Ecological diversification of mammals during the Mesozoic the Age of Dinosaurs McGraw Hill References edit Past Presidents of SVP Past Award Winners and Grant Recipients Society of Vertebrate Paleontology Retrieved 18 May 2024 In Memoriam William A Clemens Jr Professor of Paleontology and Integrative Biology Emeritus UC Berkeley 1932 2020 University of California Academic Senate Retrieved 18 May 2024 Polly P D Lillegraven J A Luo Z X 2005 Introduction Paleomammalogy in honor of Professor Emeritus William Alvin Clemens Jr Journal of Mammalian Evolution 12 3 8 Sanders Robert 1 December 2020 William Clemens expert on fossil mammals dies at 88 Berkeley News Retrieved 2 December 2020 Clemens awarded Romer Simpson Medal ucmp berkeley edu UCMP salutes Bill Clemens page 1 ucmp berkeley edu Retrieved from https en wikipedia org w index php title William A Clemens Jr amp oldid 1225248376, wikipedia, wiki, book, books, library,
