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Taphonomy and Paleoecology of the Dinosaur Beds of the Jurassic Morrison Formation

Published online by Cambridge University Press:  08 February 2016

Peter Dodson ,
A. K. Behrensmeyer ,
Robert T. Bakker  and
John S. McIntosh
Peter Dodson
Affiliation:
Laboratories of Anatomy, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pa. 19104
A. K. Behrensmeyer
Affiliation:
Peabody Museum of Natural History, Yale University, New Haven, Conn. 06520
Robert T. Bakker
Affiliation:
Department of Earth and Planetary Science, Johns Hopkins University, Baltimore, Md. 21218
John S. McIntosh
Affiliation:
Department of Physics, Wesleyan University, Middletown, Conn. 06457
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Abstract

The Upper Jurassic Morrison Formation has yielded one of the richest dinosaur faunas of the world. Morrison sediments are distributed over more than a million square kilometers in the western United States and represent a mosaic of riverine, lacustrine and floodplain environments developed on a vast alluvial plain nourished by debris from the ancestral Rocky Mountains. Plant productivity must have been reasonably high to support abundant large-bodied herbivores, but the absence of coals, scarcity of small aquatic vertebrates, the abundance of oxidized sediments, and presence of calcretes lead us to believe that water was periodically in short supply. A strongly seasonal climate may have necessitated annual large-scale movements of large herbivores, accounting in part for their remarkably broad and uniform geographic distribution. Dinosaur diversity is lower in the Morrison than in the Late Cretaceous, and taphonomic alteration is higher. Massed accumulations of thousands of bones are characteristic of the Morrison. Morrison dinosaurs were not confined to specific depositional environments but were distributed across the complete spectrum of available habitats, from lakes to dry floodplains; this type of distribution is similar to that of large terrestrial mammals such as elephants and rhinos and is different from that of hippos and crocodiles. Common Morrison taxa were Camarasaurus, Apatosaurus, Diplodocus, Allosaurus and Stegosaurus; these genera probably constituted a true dinosaur community. Stegosaurus may have been partially segregated from the other genera, and Camptosaurus more strongly so. Camarasaurus and Diplodocus were gregarious, with juveniles and subadults of the former particularly common; Apatosaurus was less abundant and more solitary in its habits. Juveniles and subadults are known for a number of dinosaurs.

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Articles
Information
Paleobiology , Volume 6 , Issue 2 , Spring 1980 , pp. 208 - 232
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Armstrong, R. L. 1968. Sevier orogenic belt in Nevada and Utah. Bull. Geol. Soc. Am. 79:429–458.Google Scholar
Baker, A. A., Dane, C. H., and Reeside, J. B. Jr. 1936. Correlation of the Jurassic formations of parts of Utah, Arizona, New Mexico and Colorado. U.S. Geol. Surv. Prof. Pap. 183:1–66.Google Scholar
Bakker, R. T. 1971. Ecology of the brontosaurs. Nature. 229:172–174.Google Scholar
Bakker, R. T. 1972. Anatomical and ecological evidence of endothermy in dinosaurs. Nature. 238:81–85.Google Scholar
Bakker, R. T. 1978. Dinosaur feeding behavior and the origin of flowering plants. Nature. 274:661–663.CrossRefGoogle Scholar
Bakker, R. T., Foley, C., and Goepp, J. 1980. Dinosaur habits–dinosaur habitats: sedimentological and paleoecological analysis of the Late Jurassic dinosaur fauna at Como Bluff, Wyoming. Lethaia. In press.Google Scholar
Behrensmeyer, A. K. 1975. Taphonomy and paleoecology of Plio-Pleistocene vertebrate assemblages of Lake Rudolph, Kenya. Bull. Mus. Comp. Zool. 146:473–578.Google Scholar
Behrensmeyer, A. K. 1978. Taphonomic and ecologic information from bone weathering. Paleobiology. 4:150–162.CrossRefGoogle Scholar
Behrensmeyer, A. K., Western, D., and Dechant Boaz, D. E. 1979. New perspectives in vertebrate paleoecology from a recent bone assemblage. Paleobiology. 5:12–21.CrossRefGoogle Scholar
Béland, P. and Russell, D. A. 1978. Paleoecology of Dinosaur Provincial Park (Cretaceous), Alberta, interpreted from the distribution of articulated vertebrate remains. Can. J. Earth Sci. 15:1012–1024.CrossRefGoogle Scholar
Berman, D. S. and McIntosh, J. S. 1978. Skull and relationships of the Upper Jurassic sauropod Apatosaurus (Reptiles; Saurischia). Bull. Carnegie Mus. Nat. Hist. 8:1–35.Google Scholar
Bilbey, S. A., Kerns, R. L. Jr., and Bowman, J. T. 1974. Petrology of the Morrison Formation, Dinosaur Quarry Quadrangle, Utah. Utah Geol. Mineral. Surv. Spec. Stud. 48:1–15.Google Scholar
Bown, T. M. 1979. Geology and mammalian paleontology of the Sand Creek Facies, Lower Willwood Formation (Lower Eocene), Washakie County, Wyoming. Geol. Surv. Wyoming, Mem. 2:1–151.Google Scholar
Bown, T. M. and Kraus, M. J. In Prep. Lower Eocene alluvial paleosols (Willwood Formation, northwest Wyoming) and their significance for paleoecology, paleoclimatology, vertebrate taphonomy and basin analysis.Google Scholar
Brady, L. L. 1969. Stratigraphy and petrology of the Morrison Formation of the Cañon City, Colorado, area. J. Sed. Pet. 39:632–648.Google Scholar
Brown, B. 1935. Sinclair Dinosaur Expedition, 1934. Nat. Hist. 36:3–15.Google Scholar
Case, T. J. 1978. Speculations on the growth rate and reproduction of some dinosaurs. Paleobiology. 4:320–328.Google Scholar
Colbert, E. H. 1962. The weights of dinosaurs. Novitates. 2076:1–16.Google Scholar
Collinson, J. D. 1978. Lakes. Pp. 61–79. In: Reading, H. G., ed. Sedimentary Environments and Facies. 557 pp. American Elsevier; New York.Google Scholar
Coombs, W. P. Jr. 1975. Sauropod habits and habitats. Palaeogeogr., Palaeoclimatol., Palaeoecol. 17:1–33.CrossRefGoogle Scholar
Cope, E. D. 1877. On a gigantic saurian from the Dakota Epoch of Colorado. Paleontol. Bull. 25:5–10.Google Scholar
Cott, H. B. 1961. Scientific results of an inquiry into the ecology and economic status of the Nile crocodile (Crocodylus niloticus) in Uganda and northern Rhodesia. Trans. Zool. Soc. Lond. 29:211–356.Google Scholar
Craig, L. C., Holmes, C. N., Cadigan, R. A., Freeman, V. L., Mullers, T. E., and Weir, G. W. 1955. Stratigraphy of the Morrison and related formations, Colorado Plateau region, a preliminary report. U.S. Geol. Surv. Bull. 1009E:129–168.Google Scholar
DeCaprariis, P. and Lindemann, R. H. 1978. Species richness in patchy environments. Math. Geol. 10:73–90.Google Scholar
Derr, M. E. 1974. Sedimentary structure and depositional environments of paleochannels in the Jurassic Morrison Formation near Green River, Utah. Brigham Young Univ. Geol. Stud. 21:3–39.Google Scholar
Dodson, P. 1971. Sedimentology and taphonomy of the Oldman Formation (Campanian), Dinosaur Provincial Park, Alberta (Canada). Palaeogeogr., Palaeoclimatol., Palaeoecol. 10:21–74.CrossRefGoogle Scholar
Dodson, P. 1975. Functional and ecological significance of relative growth in Alligator . J. Zool. 175:315–355.Google Scholar
Dodson, P. 1980. Comparative osteology of the American ornithopods Camptosaurus and Tenontosaurus . Mém. Soc. Géol. France 59. 139:81–85.Google Scholar
Dodson, P., Behrensmeyer, A. K., and Bakker, R. T. 1980. Taphonomy of the Morrison Formation (Kimmeridgian-Portlandian) and Cloverly Formation (Aptian-Albian) of the western United States. Mém. Soc. Géol. France 59. 139:87–93.Google Scholar
Dodson, P. and Madsen, J. H. Jr. 1980. On the sternum of Camptosaurus . J. Paleontol.Google Scholar
Estes, R. 1970. Origin of the Recent North American lower vertebrate fauna: an inquiry into the fossil record. Forma et Functio. 3:139–163.Google Scholar
Estes, R. and Berberian, P. 1970. Paleoecology of a Late Cretaceous vertebrate community from Montana. Breviora. 343:1–38.Google Scholar
Farlow, J. O. 1976a. Speculations about the diet and foraging behavior of large carnivorous dinosaurs. Am. Midl. Nat. 95:186–191.CrossRefGoogle Scholar
Farlow, J. O. 1976b. A consideration of the trophic dynamics of a Late Cretaceous large-dinosaur community (Oldman Formation). Ecology. 57:841–857.CrossRefGoogle Scholar
Fisher, C. A. 1907. The Great Falls coal field, Montana. U.S. Geol. Surv. Bull. 316:161–173.Google Scholar
Galton, P. M. 1977. The ornithopod dinosaur Dryosaurus and a Laurasia-Gondwanaland connection in the Upper Jurassic. Nature. 268:230–232.CrossRefGoogle Scholar
Galton, P. M. 1978. Fabrosauridae, the basal family of ornithischian dinosaurs (Reptila: Ornithopoda). Paläontol. Z. 52:138–159.Google Scholar
Galton, P. M. and Jensen, J. A. 1973. Skeleton of a hypsilophodontid dinosaur (Nanosaurus (?) rex) from the Upper Jurassic of Utah. Brigham Young Univ. Geol. Stud. 20:137–157.Google Scholar
Gilmore, C. W. 1909. Osteology of the Jurassic reptile Camptosaurus, with a review of the species and genus, and descriptions of two new species. Proc. U.S. Nat. Mus. 36:197–332.Google Scholar
Gilmore, C. W. 1914. Osteology of the armored Dinosauria in the United States National Museum, with special reference to the genus Stegosaurus . Bull. U.S. Nat. Mus. 89:1–143.Google Scholar
Gilmore, C. W. 1925. Osteology of ornithopodous dinosaurs from the Dinosaur National Monument, Utah. Mem. Carnegie Mus. 10:385–409.Google Scholar
Gilmore, C. W. 1936. Osteology of Apatosaurus, with special reference to specimens in the Carnegie Museum. Mem. Carnegie Mus. 11:175–300.Google Scholar
Gradzinski, R. 1970. Sedimentation of dinosaur-bearing Upper Cretaceous deposits of the Nemegt Basin, Gobi Desert. Paleontol. Polonica. 21:147–229.Google Scholar
Hallam, A. 1975. Jurassic Environments. 269 pp. Cambridge Univ. Press; London.Google Scholar
Halstead, L. B. 1975. The Evolution and Ecology of the Dinosaurs. 116 pp. Peter Lowe; London.Google Scholar
Harris, T. M. 1957. A Lias-Rhaetic flora in South Wales. Proc. R. Soc. Lond. 147B:289–308.Google Scholar
Hatcher, J. B. 1903. Osteology of Haplocanthosaurus with description of a new species, and remarks on the probable habits of the Sauropoda and the age and origin of the Atlantosaurus beds. Mem. Carnegie Mus. 2:1–72.CrossRefGoogle Scholar
Hecht, M. K. and Estes, R. 1960. Fossil amphibians from Quarry Nine. Postilla. 46:1–19.Google Scholar
Imlay, R. W. 1952. Correlation of the Jurassic formations of North America, exclusive of Canada. Bull. Geol. Soc. Am. 63:953–992.Google Scholar
Janzen, D. H. 1976. The depression of reptile biomass by large herbivores. Am. Nat. 110:371–400.Google Scholar
Keller, W. D. 1962. Clay minerals in the Morrison Formation of the Colorado Plateau. U.S. Geol. Surv. Bull. 1150:1–90.Google Scholar
Langston, W. Jr. 1976. A Late Cretaceous vertebrate fauna from the St. Mary River Formation in western Canada. Pp. 114–133. In: Churcher, C. S., ed. Athlon Essays on Palaeontology in Honour of Loris Shano Russell. 286 pp. Misc. Publ., Life Sci., Royal Ont. Mus.; Toronto.Google Scholar
Lawton, R. 1977. Taphonomy of the dinosaur quarry, Dinosaur National Monument. Contrib. Geol. Univ. Wyo. 15:119–126.Google Scholar
Loomis, F. B. 1901. On Jurassic stratigraphy in southeastern Wyoming. Bull. Am. Mus. Nat. His. 14:189–198.Google Scholar
McIntosh, J. S. 1977. Dinosaur National Monument. 42 pp. Constellation Phoenix; San Diego, California.Google Scholar
Madsen, J. H. Jr. 1974. A new theropod dinosaur from the Upper Jurassic of Utah. J. Paleontol. 48:27–31.Google Scholar
Madsen, J. H. Jr. 1976a. A second new theropod from the Late Jurassic of east central Utah. Utah Geol. 3:51–60.Google Scholar
Madsen, J. H. Jr. 1976b. Allosaurus fragilis: a revised osteology. Utah Geol. Mineral. Surv. Bull. 109:1–163.Google Scholar
Marsh, O. C. 1877a. Notice of new dinosaurian reptiles from the Jurassic Formation. Am. J. Sci. (3) 14:514–516.Google Scholar
Marsh, O. C. 1877b. Notice of some new vertebrate fossils. Am. J. Sci. (3) 14:249–256.Google Scholar
Marsh, O. C. 1878a. Notice of new dinosaurian reptiles. Am. J. Sci. (3) 15:241–244.Google Scholar
Marsh, O. C. 1878b. Principal characters of American Jurassic dinosaurs. Part I. Am. J. Sci. (3) 16:411–416.Google Scholar
Marsh, O. C. 1879. Notice of new Jurassic reptiles. Am. J. Sci. (3) 18:501–505.Google Scholar
Marsh, O. C. 1884. Principal characteristics of American Jurassic dinosaurs. Part VIII. The order Theropoda. Am. J. Sci. (3) 27:329–340.Google Scholar
Marsh, O. C. 1885. Names of extinct reptiles. Am. J. Sci. (3) 29:169.Google Scholar
Marsh, O. C. 1890. Description of new dinosaurian reptiles. Am. J. Sci. (3) 39:81–86.Google Scholar
Marsh, O. C. 1894. The typical Ornithopoda of the American Jurassic. Am. J. Sci. (3) 48:85–90.Google Scholar
Mirsky, A. 1962. Stratigraphy of non-marine Upper Jurassic and Lower Cretaceous rocks, southern Bighorn Mountains, Wyoming. Bull. Am. Assoc. Petrol. Geol. 46:1653–1680.Google Scholar
Moberly, R. Jr. 1960. Morrison, Cloverly, and Sykes Mountain formations, northern Bighorn Basin, Wyoming and Montana. Bull. Geol. Soc. Am. 71:1137–1176.Google Scholar
Mook, C. C. 1916. Study of the Morrison Formation. Ann. New York Acad. Sci. 27:39–191.Google Scholar
Mook, C. C. 1918. The habitat of sauropod dinosaurs. J. Geol. 26:459–470.Google Scholar
Mook, C. C. 1925. A revision of the Mesozoic Crocodilia of North America. Bull. Am. Mus. Nat. Hist. 51:319–432.Google Scholar
Mook, C. C. 1942. Skull characters of Amphicotylus lucasii Cope. Novitates. 1165:1–5.Google Scholar
Mook, C. C. 1967. Preliminary description of a new goniopholid crocodilian. Kirtlandia. 2:1–10.Google Scholar
Osborn, H. F. 1903. Ornitholestes hermanni, a new compsognathid dinosaur from the Upper Jurassic. Bull. Am. Mus. Nat. Hist. 19:281–296.Google Scholar
Osborn, H. F. 1904. Fossil wonders of the American West—Bone Cabin Quarry. Century Illustr. Monthly Mag. 46:680–694.Google Scholar
Osborn, H. F. 1917. Skeletal adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus . Bull. Am. Mus. Nat. Hist. 35:733–771.Google Scholar
Osborn, H. F. and Mook, C. C. 1921. Camarasaurus, Amphicoelias, and the other sauropods of Cope. Mem. Am. Mus. Nat. Hist. 3:246–387.Google Scholar
Ostrom, J. H. 1961. Cranial morphology of the hadrosaurian dinosaurs of North America. Bull. Am. Mus. Nat. Hist. 122:33–186.Google Scholar
Ostrom, J. H. 1970. Stratigraphy and paleontology of the Cloverly Formation (Lower Cretaceous) of the Bighorn Basin Area, Wyoming and Montana. Bull. Yale Peabody Mus. Nat. Hist. 35:1–234.Google Scholar
Ostrom, J. H. and McIntosh, J. S. 1966. Marsh's Dinosaurs—the Collections from Como Bluff. 388 pp. Yale Univ. Press; New Haven, Conn.Google Scholar
Peck, R. E. 1937. Morrison Charophyta from Wyoming. J. Paleontol. 11:83–90.Google Scholar
Peterson, J. A. 1972. Jurassic System. Pp. 177–189. In: Mallory, W. W., ed. Geologic Atlas of the Rocky Mountain Region. 331 pp. Rocky Mountain Association of Geologists; Denver, Colorado.Google Scholar
Pond, C. M. 1977. The significance of lactation in the evolution of mammals. Evolution. 31:177–199.Google Scholar
Pough, F. H. 1973. Lizard energetics and diet. Ecology. 54:837–844.Google Scholar
Riggs, E. S. 1901. The dinosaur beds of the Grand River Valley of Colorado. Field Columbian Mus. Geol. 1:267–275.Google Scholar
Riggs, E. S. 1903. Structure and relationships of opisthocoelian dinosaurs. Part I. Apatosaurus Marsh. Field Columbian Mus. Geol. 2:165–196.Google Scholar
Riggs, E. S. 1904. Structure and relationships of opisthocoelian dinosaurs. Part II. The Brachiosauridae. Field Columbian Mus. Geol. 2:229–248.Google Scholar
Russell, D. A., Béland, P., and McIntosh, J. S. 1980. Paleoecology of the dinosaurs of Tendaguru (Tanzania). Mém. Soc. Géol. France. 59. 139:169–175.Google Scholar
Shepherd, J. D., Galton, P. M., and Jensen, J. A. 1977. Additional specimens of the hypsilophodontid dinosaur Dryosaurus altus from the Upper Jurassic of western North America. Brigham Young Univ. Geol. Stud. 24:11–15.Google Scholar
Simpson, G. G. 1926. The age of the Morrison Formation. Am. J. Sci. (5) 12:198–216.CrossRefGoogle Scholar
Sohn, I. G. 1979. Nonmarine ostracodes in the Lakota Formation (Lower Cretaceous) from South Dakota and Wyoming. U.S. Geol. Surv. Prof. Pap. 1069:1–24.Google Scholar
Sternberg, C. M. 1970. Comments on dinosaurian preservation in the Cretaceous of Wyoming and Alberta. Publ. Paleontol. Nat. Mus. Can. 4:1–9.Google Scholar
Stokes, W. L. 1944. Morrison Formation and related deposits in and adjacent to the Colorado Plateau. Bull. Geol. Soc. Am. 55:951–992.Google Scholar
Stovall, J. W. 1938. The Morrison Formation of Oklahoma and its dinosaurs. J. Geol. 46:583–600.Google Scholar
Surdam, R. C., Eugster, H. P., and Mariner, R. H. 1972. Magadi-type chert in Jurassic and Eocene to Pleistocene rocks, Wyoming. Bull. Geol. Soc. Am. 83:2261–2266.Google Scholar
Tank, R. W. 1956. Clay mineralogy of the Morrison Formation, Black Hills area, Wyoming and South Dakota. Bull. Am. Assoc. Petrol. Geol. 40:871–878.Google Scholar
Wahlstrom, E. E. 1966. Geochemistry and petrology of the Morrison Formation, Dillon, Colorado. Bull. Geol. Soc. Am. 77:727–739.Google Scholar
Walker, T. R., Waugh, B., and Grone, A. J. 1978. Diagenesis in first cycle desert alluvium of Cenozoic age, southwestern United States and northwestern Mexico. Bull. Geol. Soc. Am. 89:19–32.Google Scholar
White, C. A. 1886. On the fresh-water invertebrates of the North American Jurassic. Bull. U.S. Geol. Surv. 29:1–24.Google Scholar
Yen, T.-C. and Reeside, J. B. Jr. 1946. Fresh-water molluscs from the Morrison Formation (Jurassic) of Sublette County, Wyoming. J. Paleontol. 20:52–58.Google Scholar