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Interpreting the diet of extinct ruminants: the case of a non-browsing giraffid

Published online by Cambridge University Press:  08 February 2016

Nikos Solounias ,
Mark Teaford  and
Alan Walker
Nikos Solounias
Affiliation:
Department of Cell Biology and Anatomy, The Johns Hopkins University, School of Medicine, 725 North Wolfe Street, Baltimore, Maryland 21205
Mark Teaford
Affiliation:
Department of Cell Biology and Anatomy, The Johns Hopkins University, School of Medicine, 725 North Wolfe Street, Baltimore, Maryland 21205
Alan Walker
Affiliation:
Department of Cell Biology and Anatomy, The Johns Hopkins University, School of Medicine, 725 North Wolfe Street, Baltimore, Maryland 21205
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Abstract

Modern ruminant species have traditionally been placed in three broad dietary categories (browsers, grazers and intermediates) based on their observed feeding habits. Shape analysis of premaxillary outlines of 31 species of ruminants shows that their premaxillae differ according to their dietary category. Browsers have pointed premaxillae and grazers square ones. Intermediate feeders have intermediate outlines.

The Miocene giraffid Samotherium boissieri has always been viewed as a specialized browser similar to the modern okapi, Okapia johnstoni. However, the premaxillary shape of S. boissieri falls very close to the mean of the grazers and is most similar to that of the African buffalo (Syncerus caffer), a committed grazer.

Quantitative analyses of the microscopic wear patterns on the molars reveal significant differences between three modern species from the three dietary groups. S. boissieri has more microscopic scratches on its teeth than either the modern giraffe Giraffa camelopardalis (a browser) or Grant's gazelle Gazella granti (an intermediate feeder). In this respect, it is indistinguishable from the wildebeest Connochaetes taurinus which is a committed grazer.

Both of these analyses suggest that this extinct giraffid was a grazer, although we cannot rule out the possibility that it was an intermediate feeder. It was definitely not a specialized browser as are both living members of the Giraffidae.

Type
Articles
Information
Paleobiology , Volume 14 , Issue 3 , Summer 1988 , pp. 287 - 300
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Abel, O. 1927. Lebensbilder aus der Tiervelt der Vorzeit. Second edition. Gustav Fisher Verlag; Jena. 714 pp.Google Scholar
Bigalke, R. C. 1972. Observations on the behaviour and feeding habits of the Springbok, Antidorcas marsupialis. Zoologica Africana 7:333–359.CrossRefGoogle Scholar
Boyd, R. J. 1970. Elk of the White River plateau, Colorado. Colorado Division of Game and Fish Parks. 121 pp.Google Scholar
Chapman, J. A. and Feldhamer, G. A. 1982. Wild Mammals of North America. The Johns Hopkins University Press; Baltimore. 1,147 pp.Google Scholar
Clutton-Brock, T. H., Guinness, F. E., and Albon, S. D. 1982. Red Deer. University of Chicago Press; Chicago. 378 pp.Google Scholar
Covert, H. H. and Kay, R. F. 1981. Dental microwear and diet: implications for determining the feeding behaviors of extinct primates, with a comment on the dietary pattern of Sivapithecus. American Journal of Physical Anthropology 55:331–336.CrossRefGoogle ScholarPubMed
Dagg, A. I. 1960. Food preferences of the giraffe. Proceedings of the Zoological Society of London 135:640–642.Google Scholar
Dagg, A. I. 1971. Giraffa camelopardalis. Mammalian Species, American Society of Mammalogists 5:1–8.Google Scholar
Dagg, A. I. and Foster, J. B. 1976. The Giraffe. Van Nostrand and Reinhold; New York. 210 pp.Google Scholar
Eisenberg, J. F. 1981. The Mammalian Radiations. University of Chicago Press; Chicago. 610 pp.Google Scholar
Estes, R. D. 1974. Social organization of the African Bovidae. Pp. 166–205. In Geist, V. and Walther, F. (eds.), The Behavior of Ungulates and Its Relation to Management. Publications of the International Union for the Conservation of Nature and Natural Resources; Morges.Google Scholar
Field, C. R., Harrington, , and Pratchett, D. 1973. A comparison of the grazing preferences of the buffalo (Syncerus caffer) and Ankole cattle (Bos indicus) on three different pastures. East African Wildlife Journal 11:19–29.CrossRefGoogle Scholar
Fortelius, M. 1985. Ungulate cheek teeth: developmental, functional, and evolutionary interrelations. Acta Zoologica Fennica 180:1–76.Google Scholar
Foster, G. B. 1966. The giraffe of Nairobi National Park; home range, sex ratios, the herd and food. East African Wildlife Journal 4:139–148.CrossRefGoogle Scholar
Geist, V. 1974a. On the relationship of social evolution and ecology in ungulates. American Zoologist 14:205–220.CrossRefGoogle Scholar
Geist, V. 1974b. On the relationship of ecology and behavior in the evolution of ungulates: theoretical considerations. Pp. 235–246. In Geist, V. and Walther, F. (eds.), The Behavior of Ungulates and Its Relation to Management. Publications of the International Union for the Conservation of Nature and Natural Resources; Morges.Google Scholar
Geist, V. and Walther, F., eds. 1974. The Behavior of Ungulates and its Relation to Management. Publications of the International Union for the Conservation of Nature and Natural Resources; Morges.Google Scholar
Geraads, D. 1977. Les Palaeotraginae (Giraffinae, Mammalia) du Miocène supérieur de la région de Thessalonique (Grèce). Géologie Méditerranéenne 5:269–276.CrossRefGoogle Scholar
Gordon, K. D. 1982. A study of microwear on chimpanzee molars: implications for dental microwear analysis. American Journal of Physical Anthropology 59:195–215.CrossRefGoogle ScholarPubMed
Gordon, K. D. 1984. Hominoid dental microwear analysis to detect diet. Journal of Dental Research 63:1043–1046.CrossRefGoogle ScholarPubMed
Gordon, K. D. and Walker, A. C. 1983. Playing possum: a microwear experiment. American Journal of Physical Anthropology 60:109–112.CrossRefGoogle ScholarPubMed
Grine, F. E. 1981. Trophic differences between “gracile” and “robust” australopithecines: a scanning electron microscope analysis of occlusal events. South African Journal of Science 77:203–230.Google Scholar
Grine, F. E. 1986. Dental evidence for dietary differences in Australopithecus and Paranthropus: a quantitative analysis of permanent molar microwear. Journal of Human Evolution 15:783–822.CrossRefGoogle Scholar
Hall Martin, A. J. 1974a. A note on the seasonal utilization of different vegetation types by the giraffe. South African Journal of Science 70:122–123.Google Scholar
Hall Martin, A. J. 1974b. Food selection by Transvaal lowland giraffe as determined by the analysis of stomach contents. Journal of South African Wildlife Management Association 4:192–202.Google Scholar
Harper, J. A. 1971. Ecology of Roosevelt elk. Oregon Game Commission, Portland 1971:1–44.Google Scholar
Hash, H. S. 1974. Movements and food habits of the Lochsa elk. M.S. Thesis. University of Idaho, Moscow. 76 pp.Google Scholar
Hofmann, R. R. 1973. The Ruminant Stomach. East African Monographs in Biology. East African Literature Bureau, Nairobi. 298 pp.Google Scholar
Janis, C. 1976. The evolutionary strategy of the Equidae and the origins of rumen and cecal digestion. Evolution 30:757–774.CrossRefGoogle ScholarPubMed
Janis, C. 1979. Mastication in the hyrax and its relevance to ungulate dental evolution. Paleobiology 5:50–59.CrossRefGoogle Scholar
Janis, C. 1982. Evolution of horns in ungulates: ecology and palaeoecology. Biological Reviews 57:261–318.CrossRefGoogle Scholar
Jarman, P. J. 1974. The social organization of antelopes in relation to their ecology. Behaviour 58:215–267.CrossRefGoogle Scholar
Kay, R. F. 1975. The functional adaptations of primate teeth. American Journal of Physical Anthropology 43:195–213.CrossRefGoogle Scholar
Kay, R. F. 1977. The evolution of molar occlusion in Cercopithecidae and early catarrhines. American Journal of Physical Anthropology 46:327–352.CrossRefGoogle ScholarPubMed
Kingdon, J. 1979. East African Mammals (Large Mammals). Vol. III Part B. Academic Press; London. 436 pp.Google Scholar
Kingdon, J. 1982a. East African Mammals (Bovids). Vol. III Part C. Academic Press; London. 393 pp.Google Scholar
Kingdon, J. 1982b. East African Mammals (Bovids). Vol. III Part D. Academic Press; London. 394–746 pp.Google Scholar
Kurtén, B. 1971. The Age of Mammals. Columbia University Press; New York. 250 pp.Google Scholar
Labão-Tello, J. P. L. and Van Gelder, R. G. 1975. The natural history of the nyala (Tragelaphus angasi) (Mammalia Bovidae). Bulletin of the American Museum of Natural History 155:319–386.Google Scholar
Lack, D. 1953. Darwin's finches. Scientific American 188:66–71.CrossRefGoogle Scholar
Lamprey, H. F. 1963. Ecological separation of large mammal species in the Tanangire game reserve, Tanganyka. East African Wildlife Journal 1:63–70.CrossRefGoogle Scholar
Lekagul, B. and McNeely, J. A. 1977. Mammals of Thailand. Kurusapha Ladprao Press; Bankok. 758 pp.Google Scholar
Leuthold, B. W. 1977. African Ungulates. Springer-Verlag; Berlin. 307 pp.CrossRefGoogle Scholar
Leuthold, B. W. and Leuthold, W. 1972. Food habits of the giraffe in Tsavo National Park, Kenya. East African Wildlife Journal 10:129–142.CrossRefGoogle Scholar
McNaughton, S. J. and Georgiadis, N. J. 1986. Ecology of African grazing and browsing mammals. Annual Review of Ecology and Systematics 17:39–65.CrossRefGoogle Scholar
Meagher, M. M. 1973. The bison of Yellowstone National Park. Science Monograph Series 1:1–161.Google Scholar
Medway, Lord. 1977. Mammals of Borneo. Monographs of the Malasian Branch of the Royal Asiatic Society, no. 7. Perchetakan Mas Press; Kuala Lumpur. 172 pp.Google Scholar
Medway, Lord. 1978. The Wild Mammals of Malaya. Oxford University Press; London. 128 pp.Google Scholar
Moore-Berger, E. 1974. Utilization of the habitat by the reticulated giraffe in northern Kenya. M.S. Thesis, University of Nairobi.Google Scholar
Nowak, R. M. and Paradiso, J. L. 1983. Walker's Mammals of the World. The Johns Hopkins University Press; Baltimore. 1,362 pp.Google Scholar
Osborn, H. F. 1910. The Age of Mammals. Macmillan; New York. 635 pp.Google Scholar
Peden, D. G. 1976. Botanical composition of bison diets on shortgrass plains. American Wildlife Naturalist 96:225–229.Google Scholar
Peters, C. R. 1982. Electron-optical microscopic study of incipient dental microdamage from experimental seed and bone crushing. American Journal of Physical Anthropology 57:283–302.CrossRefGoogle ScholarPubMed
Prater, S. H. 1971. The Book of Indian Animals. Bombay Natural History Society. Leaders Press; Bombay. 324 pp.Google Scholar
Rensberger, J. M. 1973. An occlusion model for mastication and dental wear in herbivorous mammals. Journal of Paleontology 47:515–528.Google Scholar
Rensberger, J. M. 1978. Scanning electron microscopy of wear and occlusal events in some small herbivores. Pp. 415–438. In Butler, P. M. and Joysey, K. A. (eds.), Development, Function and Evolution of Teeth. Academic Press; New York.Google Scholar
Rensberger, J. M. 1982. Patterns of dental change in two locally persistent successions of fossil aplodontid rodents. Pp. 323–349. In Kurtén, B. (ed.), Teeth: Form, Function and Evolution. Columbia University Press; New York.Google Scholar
Rensberger, J. M. and von Koeningswald, W. 1980. Functional and phylogenetic interpretation of enamel microstructure in rhinoceroses. Paleobiology 6:477–495.CrossRefGoogle Scholar
Rose, K. D., Walker, A. C., and Jacobs, L. L. 1981. Function of the mandibular tooth comb in living and extinct mammals. Nature 289:583–585.CrossRefGoogle ScholarPubMed
Schaller, G. B. 1976. The Deer and the Tiger. University of Chicago Press; Chicago. 370 pp.Google Scholar
Simpson, G. G. 1951. Horses. Oxford University Press; New York. 274 pp.Google Scholar
Sinclair, A. R. E. 1977. The African Buffalo. University of Chicago Press; Chicago. 353 pp.Google Scholar
Sinclair, A. R. E. and Norton-Griffiths, M., eds. 1979. Serengeti: Dynamics of an Ecosystem. University of Chicago Press; Chicago. 389 pp.Google Scholar
Sokal, R. R. and Rohlf, F. J. 1969. Biometry. W. H. Freeman; San Francisco. 776 pp.Google Scholar
Solounias, N. 1981a. Mammalian fossils of Samos and Pikermi. Part 2: Resurrection of a classic Turolian fauna. Annals of Carnegie Museum 50:231–270.CrossRefGoogle Scholar
Solounias, N. 1981b. The Turolian fauna from the Island of Samos, Greece. Contributions to Vertebrate Evolution 6:1–232.Google Scholar
Solounias, N. and Dawson-Saunders, B. K. In Press. The masticatory morphology of the Miocene ruminants from Pikermi and Samos, Greece. Palaeogeography, Palaeoclimatology, Palaeoecology.Google Scholar
Stirton, R. A. 1947. Observations on the evolutionary rates of hypsodonty. Evolution 1:32–41.CrossRefGoogle Scholar
Taylor, M. E. and Hannam, A. G. 1987. Tooth microwear and diet in the African Viverridae. Canadian Journal of Zoology 65:1696–1702.CrossRefGoogle Scholar
Teaford, M. F. 1985. Molar microwear and diet in the genus Cebus. American Journal of Physical Anthropology 66:363–370.CrossRefGoogle ScholarPubMed
Teaford, M. F. 1986. Dental microwear and diet in two species of Colobus. Pp. 63–66. In Else, J. G. and Lee, P. C. (eds.), Primate Ecology and Conservation (Vol. 2). Cambridge University Press; Cambridge.Google Scholar
Teaford, M. F. 1988. A review of dental microwear and diet in modern mammals. Scanning Microscopy 2:1149–1166.Google ScholarPubMed
Teaford, M. F. and Oyen, O. J. 1988. In vivo and in vitro turnover in dental microwear. American Journal of of Physical Anthropology 75:261–262.Google Scholar
Teaford, M. F. and Robinson, J. G. 1987. Diet and dental microwear in Cebus nigrivittatus. American Journal of Physical Anthropology 72:261–262.Google Scholar
Teaford, M. F. and Walker, A. C. 1983a. Prenatal jaw movements in the guinea pig, Cavia porcellus; evidence from patterns of tooth wear. Journal of Mammalogy 64:534–536.CrossRefGoogle Scholar
Teaford, M. F. and Walker, A. C. 1983b. Dental microwear in adult and still-born guinea pigs (Cavia porcellus). Archives of Oral Biology 28:1077–1081.CrossRefGoogle ScholarPubMed
Teaford, M. F. and Walker, A. C. 1984. Quantitative differences in dental microwear between primate species with different diets and a comment on the presumed diet of Sivapithecus. American Journal of Physical Anthropology 64:191–200.CrossRefGoogle Scholar
Thenius, E. 1966. Die Vorgeschichte der Einfuger. Sonderdruck aus Zeitschrift für Säugetierkunde 31:150–171.Google Scholar
Thomas, H. 1984. Les Bovidae (Artiodactyla: Mammalia) du Miocène du Sous-Continent Indien, de la Péninsule Arabique et de l'Afrique: biostratigraphie, biogéographie, et écologie. Palaeogeography, Palaeoclimatology, Palaeoecology 84:251–299.CrossRefGoogle Scholar
Van Valen, L. 1960. A functional index of hypsodonty. Evolution 14:531–532.CrossRefGoogle Scholar
Vesy-Fitzerald, D. F. 1960. Grazing succession amongst East African game animals. Journal of Mammalogy 41:161–170.CrossRefGoogle Scholar
Vesy-Fitzerald, D. F. 1974. Utilization of the grazing resources by buffaloes in the Arusha National Park. East African Wildlife Journal 12:107–134.CrossRefGoogle Scholar
Vrba, E. S. 1985. Ecological and adaptive changes associated with early hominoid evolution. Pp. 63–71. In Delson, E. (ed.), Ancestors: the hard evidence. Alan R. Liss; New York.Google Scholar
Walker, A. C. 1980. Functional anatomy and taphonomy. Pp. 182–196. In Behrensmeyer, A. K. and Hill, A. P. (eds.), Fossils in the Making. University of Chicago Press; Chicago.Google Scholar
Walker, A. C. 1981. Diet and teeth-dietary hypotheses and human evolution. Philosophical Transactions of the Royal Society of London 292:57–64.Google ScholarPubMed
Walker, A. C. 1984a. Mechanisms of honing in the male baboon canine. American Journal of Physical Anthropology 65:47–60.CrossRefGoogle ScholarPubMed
Walker, A. C. 1984b. Extinction in hominid evolution. Pp. 119–152. In Nitecki, M. H. (ed.), Extinctions. University of Chicago Press; Chicago.Google Scholar
Walker, A. C., Hoeck, H. N., and Perez, L. M. 1978. Microwear of mammalian teeth as an indicator of diet. Science 201:908–910.CrossRefGoogle ScholarPubMed
Webb, S. D. 1983. The rise and fall of the late Miocene ungulate fauna in North America. Pp. 267–306. In Nitecki, M. H. (ed.), Coevolution. University of Chicago Press; Chicago.Google Scholar
Weidmann, M., Solounias, N., Drake, R. E., and Curtis, G. H. 1984. Neogene stratigraphy of the Mytilini Basin, Samos Island, Greece. Geobios 17:477–490.CrossRefGoogle Scholar
Western, D. 1979. Size, life history and ecology in mammals. African Journal of Ecology 17:185–205.CrossRefGoogle Scholar
Western, D. 1980. Linking the ecology of past and present mammal communities. Pp. 41–54. In Behrensmeyer, A. K. and Hill, A. P. (eds.), Fossils in the Making. University of Chicago Press; Chicago.Google Scholar
Young, W. G. and Robson, S. K. 1987. Jaw movements from microwear on the molar teeth of the koala Phascolarctos cinereus. Journal of Zoology 213:51–61.CrossRefGoogle Scholar
Zar, J. H. 1984. Biostatistical Analysis. Prentice-Hall; Englewood Cliffs, New Jersey. 718 pp.Google Scholar