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A sinkhole locality in the Wasatch Plateau has yielded Utah's first record of the American mastodon. At nearly 3,000 m this fossil-bearing site denotes the highest elevation yet reported for Mammut americanum, and demonstrates that mountainous terrain was not a barrier to dispersals. A presumably preferred habitat of spruce-fir open forests, similar to that in the area today, was present during the time of the mastodons reported here. Two incomplete individuals of M. americanum are the only fossils that were found in the sinkhole. Entrapment appears to have been the cause of death. Since the record of M. americanum in western North America is sparse, the present find has added significance in providing more information about the nature of this animal. A possible association of a recovered spear point fragment near the fossils indicates the possibility that man and mastodon were contemporaneous here. Three independent datings were run on mastodon bone. Two based on carbon-14 yielded dates of 7,090 ± 200 yr B.P. and 7,590 ± 100 yr B.P., while the third, using the racemization process, indicated an age of less than 10,000 yr B.P.
The Journal of Paleontology, published by the Paleontological Society, includes original articles and notes on the systematics of fossil organisms and the implications of systematics to biostratigraphy, paleoecology, paleogeography, and evolution. The Journal emphasizes specimen-based research and features high quality illustrations. All taxonomic groups are treated, including invertebrates, microfossils, plants, and vertebrates. The Journal seeks to appeal to a broad international audience, and to publish comprehensive systematic treatments of taxa, which employ modern analytical techniques and have broad evolutionary, environmental, and/or geographic significance. The Journal also publishes review articles, opinion pieces in its "View From the Field" section, comments and replies in response to recent publications in the Journal, and book reviews.
The Paleontological Society is an international organization devoted exclusively to the advancement of the science of paleontology. The Society was founded in 1908 in Baltimore, Maryland, and has ~1,500 members, including professional paleontologists, academicians, explorationists, science editors, earth-science teachers, museum specialists, land managers, students, amateurs, and hobbyists. The Society holds an Annual Meeting, which is ordinarily in the fall at the same time and place as the Annual Meeting of The Geological Society of America (GSA). The Paleontological Society publishes the Journal of Paleontology six times annually, as well as Paleobiology, which is released quarterly. The Society also publishes, on an irregular basis, The Paleontological Society Memoirs (issued as supplements to the Journal), Short Course Notes, and Special Publications. The Society's official newsletter, Priscum, is issued to all members twice yearly.
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Journal of Paleontology
© 1987 Cambridge University Press