Memorial to Keith Preston Young (1918–2004) EARLE F. MCBRIDE Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78712, USA ANN MOLINEUX , College of Natural Sciences, University of Texas at Austin, Austin, Texas 78705, USA ROBERT L. FOLK Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78712, USA WILLIAM R. MUEHLBERGER Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78712, USA

Keith Preston Young was born into an old-time ranching family in Buffalo, Wyoming, in 1918. He frequently talked fondly about his experiences growing up in the area. As the fi rst in his family to attend college, Keith’s geological education began at the University of Wyoming, where he earned his bachelor’s degree in 1940 and his master’s in 1942. In the summer of 1942 Keith served as an assistant to the Wyoming state geologist. He joined the U.S. Army in September 1942, served in Europe, and retired as a captain in August 1946. He had interesting stories of his experiences slogging through Germany near the end of WWII. Following his military service, Keith returned to his geological studies, receiving his Ph.D. at the University of Wisconsin at Madison two years later in 1948. During the summers of 1947 and 1952, Keith also served as an instructor at the Princeton University fi eld camp. While at Madison, Keith met Ann Smedal, and they were married on June 4, 1949. Keith and Ann had three sons, Keith M., Steven E., and Robert A. In 1948, Keith joined the geology faculty of The University of Texas and began his long career teaching and leading research on Cretaceous stratigraphy and ammonite paleobiology. His zest for discovering ammonites and expanding knowledge of Cretaceous events continued following his retirement from teaching in 1988. He directed 50 theses and dissertations, most of which focused on the study of Cretaceous geology during the years of 1950–1983. Keith taught 14 different courses over time, chiefl y on stratigraphy, paleontology, and fi eld geology. He introduced most of the courses he taught, including “Geology and Land-Use Planning” and “Environmental Geology”. His wide knowledge of the personalities of famous stratigraphers and paleontologists permitted him to embellish his lectures with personal anecdotes that helped students relate ideas to people. His teaching success was recognized in 1981 when the

Geological Society of America Memorials, v. 34, October 2005 57 58 THE GEOLOGICAL SOCIETY OF AMERICA department awarded him the Houston Oil and Minerals Excellence in Teaching Award. Keith’s professional contributions have been signifi cant and varied. In 1970, at the beginning of the development of the new discipline of environmental geology, Keith designed and presented a short course for the American Geological Institute. He expanded this material as a basis for a new undergraduate elective course in the department and wrote one of the fi rst textbooks in this discipline, Geology: The Paradox of Earth and Man (1975). From 1975 to 1982, he served on the Mid-Cretaceous Working Group of the International Geological Correlations program of the International Geological Congress (IGC) and on the Tethyan Correlations Working Group. His publication record began in 1949 and ranges from ammonite paleontology to Holocene subsidence. A major accomplishment has been the erection of the ammonite biostratigraphy of the Gulf Cretaceous System and the correlation to the European stages. Keith recognized the alternating endemic and cosmopolitan character of ammonite biotas in the Gulf Comanchean and the signifi cance of these to understand sea-level changes in North America. Keith continued his ammonite research long after retirement. Keith was a voracious reader of geology journals and science articles in newspapers and magazines, including those far from his own fi elds of interest. The various clippings that he posted on the bulletin board outside his offi ce were the best source of new discoveries in science prior to the Internet. A satellite interest of Keith’s was research on rudists, and he ably guided his students within this research domain. Keith also produced and catalogued a large number of acetate peels of rudist specimens that are now in the Texas Memorial Museum. His excellent cataloguing of the research collections held within the Department of Geological Science has enabled the Museum to move that information speedily into the digital world.

SELECTED BIBLIOGRAPHY OF KEITH P. YOUNG

1951 Forminifera and Stratigraphy of the Frontier Formation (Upper Cretaceous) southern Montana: Journal of Paleontology, v. 25, no. 1, p. 35–68, 4 pls. 1957 Upper Albian (Cretaceous) Ammonoidea from Texas: Journal of Paleontology, v. 31, p. 1–33, 10 pls. 1957 Cretaceous ammonites from Eastern Apache County, Arizona: Journal of Paleontology, v. 31, p. 1167–1174, pls. 149–150. 1958 Graysonites, A Cretaceous ammonite in Texas: Journal of Paleontology, v. 32, p. 286– 294, pls. 39–40. 1958 Cenomanian (Cretaceous) ammonites from Trans-Pecos Texas: Journal of Paleontology, v. 32, p. 286–294, pls. 39–40. 1959 Edwards fossils as depth indicators: in Symposium on Edwards limestone in Central Texas; The University of Texas Publication 5905, p. 97–104, pl. 31, 32. 1959 Techniques of mollusc zonation in Texas Cretaceous: American Journal of Science, p. 762–769. 1960 Biostratigraphy and the new Paleontology: Journal of Paleontology, v. 34, p. 347–358. 1963 Upper Cretaceous Ammonites from Gulf Coast of the United States: The University of Texas Publication 6304, 373 p., 82 pls. 1966 Texas Mojsisovicziinae (Ammonoidea) and the zonation of the Fredericksburg: Geological Society America Memoir 100, 225 p., 38 pls. 1968 Upper Albian (Cretaceous M. romeri zone) ammonites in Texas and Mexico: Journal of Paleontology, v. 42, p. 70–80, pls. 15–19. 1972 Cretaceous paleogeography: Implication of endemic ammonite faunas: The University of Texas at Austin, Bureau of Economic Geology Circular 72-2, 13 p. MEMORIAL TO KEITH PRESTON YOUNG 59 1974 Lower Albian and Aptian (Cretaceous) ammonites of Texas: Geoscience and Man, v. 8, p. 175–228, 16 pls. 1975 Geology: the paradox of earth and man: Boston, Houghton Miffl in Co., 526 p. 1975 [with D.S. Barker and E.C. Jonas] Stratigraphy of the Austin Chalk in the vicinity of Pilot Knob: Austin, Texas: South-Central Section, Geological Society of America, 9th Annual Meeting, Field Trip Guidebook, Bureau of Economic Geology, University of Texas, p. 1A–7A. 1976 [with L.E. Garner] Environmental Geology of the Austin Area, an aid to urban planning: Bureau of Economic Geology, University of Texas at Austin, Report of Investigators no. 86, 39 p. 1979 [with J. Dan Powell] Late Albian-Turonian correlations in Texas and Mexico; Nice, Annals Museo Histoire Naturelle of Nice, v. 4, 36 p., 8 pls. 1979 Early Cenomanian and Late Albian (Cretaceous) ammonites, especially Lyelliceridae, of Texas and Mexico: Texas Memorial Museum Bulletin 26, 99 p., 9 pls. 1983 Mexico, in Moullade, M., and Nairn, A.E.M., eds., Phanerozoic Geology of the World II: The Mesozoic, Part B: Amsterdam, Elsevier, Chapter 3, p. 61 88. 1986 Cretaceous, marine inundations of the San Marcos Platform, Texas: London, Cretaceous Research, v. 7, p. 117–140.

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