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Taphonomy of mammalian fossil remains from Siwalik rocks of Pakistan

  • Catherine Badgley (a1)
Abstract

Siwalik rocks of Pakistan are a virtually continuous, continental sedimentary sequence, extending in age from 18 to 1 ma b.p. This paper describes taphonomic features of late Miocene mammalian assemblages from a highly fossiliferous interval about 400 m thick, based on field documentation of sedimentary environments at 42 fossil localities and systematic fossil collection of 21 localities.

Within a broadly fluvial system, I recognize four sedimentary environments of bone accumulation, distinguished by lithology, unit-thickness, unit-geometry, contacts, sedimentary structures, and relationship to adjacent units. Each environment corresponds to an association of lithofacies. Facies Association I is interpreted as the persistent, major channel bodies of a meandering fluvial system; Facies Association II as coarse-grained flood deposits, such as crevasse splays, deposited beyond the main channels; Facies Association III as channel margins, including levees and swales; and Facies Association IV as predominantly subaerial floodplains.

Taphonomic features of bone assemblages from each facies association include skeletal-element composition, surface distribution of specimens, degree of articulation, hydraulic equivalence between organic and inorganic sedimentary particles, frequency of juvenile remains, size distribution of fauna, and an estimate of duration of accumulation of individual fossil localities. The distribution of these features among the four facies associations suggests that bone assemblages in Facies Associations I and II accumulated by the action of currents in river channels or floods, whereas bone assemblages in Facies Associations III and IV accumulated through concentration by biological agents and/or attrition at a repeatedly used site of predation.

Inclusion in fluvial accumulations depends on initial availability of skeletal remains and hydraulic characteristics of individual skeletal elements, but not taxonomic identity per se. For biological accumulations, however, taxonomic composition reflects the preferences of the individual agents of accumulation. The probability of preservation of taxa in fluvial accumulations is probably mainly a function of body size, as reflected in the sizes of isolated skeletal elements. Thus, in this Siwalik system, bone assemblages that experienced fluvial transport are better representations of original community composition than bone assemblages created by biological agents or passive accumulation.

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Allen, J. R. L. 1970a. Studies in fluviatile sedimentation: a comparison of fining-upwards cyclothems with special reference to coarse-member composition and interpretation. J. Sediment. Petrol. 40:298323.
Allen, J. R. L. 1970b. A quantitative model of grain size and sedimentary structures in lateral deposits. Geol. J. 7:129146.
Badgley, C. E. 1982. Community reconstruction of a Siwalik mammalian assemblage. unpub. Ph.D. diss., Yale Univ.; New Haven.
Badgley, C. 1986. Quantification of individuals in vertebrate fossil assemblages from fluvial environments. Palaios, in press.
Badgley, C. and Behrensmeyer, A. K. 1980. Paleoecology of Middle Siwalik sediments and faunas. Paleogeogr. Paleoclimatol. Paleoecol. 30:133155.
Badgley, C., Kelley, J., Pilbeam, D., and Ward, S. 1984. The paleobiology of South Asian Miocene hominoids. Pp. 328. In: Lukacs, J. R., ed. The People of South Asia. Plenum Press; New York.
Barry, J. C., Behrensmeyer, A. K., and Monaghan, M. C. 1980. A geologic and biostratigraphic framework for Miocene sediments near Khaur Village, northern Pakistan. 19 pp. Postilla. No. 183.
Barry, J. C., Lindsay, E. H., and Jacobs, L. L. 1982. A biostratigraphic zonation of the Middle and Upper Siwaliks of the Potwar Plateau of northern Pakistan. Paleogeogr. Paleoclimatol. Paleoecol. 37:95130.
Behrensmeyer, A. K. 1975. The taphonomy and paleoecology of Plio-Pleistocene vertebrate assemblages of Lake Rudolf, Kenya. Bull. Mus. Comp. Zool. 146:473578.
Behrensmeyer, A. K. 1978. Taphonomic and ecologic information from bone weathering. Paleobiology 4:150162.
Behrensmeyer, A. K. 1982. Time resolution in fluvial vertebrate assemblages. Paleobiology. 8:211227.
Behrensmeyer, A. K. and Dechant-Boaz, D. 1980. The Recent bones of Amboseli National Park, Kenya, in relation to East African paleoecology. Pp. 7292. In: Behrensmeyer, A. K. and Hill, A. P., eds. Fossils in the Making. Univ. Chicago Press; Chicago.
Behrensmeyer, A. K. and Tauxe, L. 1982. Isochronous fluvial systems in Miocene deposits of northern Pakistan. Sedimentology. 29:331352.
Bertram, B. C. B. 1979. Serengeti predators and their social systems. Pp. 221248. In: Sinclair, A. R. E. and Norton-Griffiths, M., eds. Serengeti: Dynamics of an Ecosystem. Univ. Chicago Press; Chicago.
Berwick, S. 1974. The population biology of ungulates of the Gir Forest, India. Ph.D. diss. Yale Univ.
Blalock, H. M. Jr. 1972. Social Statistics. 2d ed. (Int. Student Ed.) 583 pp. McGraw-Hill Kogakusha, Ltd.; Tokyo.
Blatt, H., Middleton, G., and Murray, R. 1980. Origin of Sedimentary Rocks. 2d ed.782 pp. Prentice-Hall, Inc.; Englewood Cliffs, N.J.
Bown, T. M. and Kraus, M. J. 1981. Lower Eocene alluvial paleosols (Willwood Formation, Northwest Wyoming, USA) and their significance for paleoecology, paleoclimatology, and basin analysis. Paleogeogr. Paleoclimatol. Paleoecol. 34:130.
Brain, C. K. 1980. Some criteria for the recognition of bone-collecting agencies in African caves. Pp. 107130. In: Behrensmeyer, A. K. and Hill, A. P., eds. Fossils in the Making. Univ. Chicago Press; Chicago.
Brain, C. K. 1981. The Hunters or the Hunted? An Introduction to African Cave Taphonomy. 365 pp. Univ. Chicago Press; Chicago.
Clark, J., Beerbower, J. R., and Kietzke, K. K. 1967. Oligocene sedimentation, stratigraphy, paleoecology and paleoclimatology in the Big Badlands of South Dakota. Fieldiana: Geol. Mem. 5. Field Mus. Natur. Hist.; Chicago.
Delany, M. J. and Happold, D. 1979. Ecology of African Mammals. Longman; London.
Foster, J. B. and Kearney, D. 1967. Nairobi National Park Game Census, 1966. E. Afr. Wildlife J. 5:112120.
Grayson, D. K. 1981. A critical view of the use of archaeological vertebrates in paleoenvironmental reconstruction. J. Ethnobiol. 1:2838.
Hill, A. 1975. Taphonomy of contemporary and late Cenozoic East African vertebrates. Ph.D. diss. Univ. London.
Hill, A. 1979. Disarticulation and scattering of mammal skeletons. Paleobiology. 5:261274.
Holtzman, R. C. 1979. Maximum likelihood estimation of fossil assemblage composition. Paleobiology. 5:7789.
Johnson, N. M., Stix, J., Tauxe, L., Cerveny, P. F., and Tahirkheli, R. A. K. 1985. Paleomagnetic chronology, fluvial processes and tectonic implications of the Siwalik deposits near Chinji Village, Pakistan. J. Geol. 93:2740.
Korth, W. W. 1979. Taphonomy of microvertebrate fossil assemblages. Ann. Carnegie Mus. 48:235285.
Kruuk, H. 1972. The Spotted Hyena. Univ. Chicago Press; Chicago.
Leeder, M. R. 1975. Pedogenic carbonate and flood sediment accretion rates: A quantitative model for alluvial, arid-zone lithofacies. Geol. Mag. 112:257270.
Lipson, S. and Pilbeam, D. 1982. Ramapithecus and hominoid evolution. J. Human Evol. 11:545548.
Pilbeam, D. 1982. New hominoid skull material from the Miocene of Pakistan. Nature. 295:232234.
Pilbeam, D. R., Behrensmeyer, A. K., Barry, J. C., and Shah, S. M. I. 1979. Miocene sediments and faunas of Pakistan. 45 pp. Postilla. No. 179.
Pilbeam, D., Rose, M. D., Badgley, C., and Lipschutz, B. 1980. Miocene hominoids from Pakistan. 94 pp. Postilla. No. 181.
Retallack, G. 1981. Fossil soils: indicators of ancient terrestrial environments. Pp. 55102. In: Niklas, K. J., ed. Paleobotany, Paleoecology, and Evolution. Praeger; New York.
Schindel, D. E. 1980. Microstratigraphic sampling and the limits of paleontologic resolution. Paleobiology. 6:408426.
Scott, L. and Klein, R. G. 1981. A hyena-accumulated bone assemblage from Late Holocene deposits at Deelpan, Orange Free State. Ann. S. Afr. Mus. 86:217227.
Sinclair, A. R. E. and Norton-Griffiths, M., eds. 1979. Serengeti: Dynamics of an Ecosystem. 389 pp. Univ. Chicago Press; Chicago.
Tauxe, L. 1979. A new date for Ramapithecus. Nature. 282:399401.
Tauxe, L. and Opdyke, N. 1982. A time framework based on magnetostratigraphy for the Siwalik sediments of the Khaur area, northern Pakistan. Paleogeogr. Paleoclimatol. Paleoecol. 37:4361.
Tauxe, L. and Badgley, C. 1984. Transition stratigraphy and the problem of remanence lock-in times in the Siwalik red beds. Geophys. Res. Lett. 11:611613.
Voorhies, M. R. 1969. Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska. Contr. Geology, Univ. Wyoming, Spec. Pap. 1. 69 pp.
Ward, S. and Pilbeam, D. 1983. Maxillofacial morphology of Miocene hominoids from Africa and Indo-Pakistan. Pp. 211238. In: Ciochon, R. L. and Corruccini, R. F., eds. New Interpretations of Ape and Human Ancestry. Plenum; New York.
Western, D. 1973. The structure, dynamics, and changes of the Amboseli ecosystem. Ph.D. Univ. Nairobi.
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Paleobiology
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