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2013 | 58 | 2 |
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The gomphotheriid mammal Platybelodon from the Middle Miocene of Linxia Basin, Gansu, China

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In this paper, we report on abundant fossils of Platybelodon from the Middle Miocene of the Linxia Basin, China. Most of the fossils were discovered at two localities (Laogou and Zengjia) in the upper Middle Miocene Hujialiang Formation, and possess derived characters for the genus, including a relatively slender upper incisor, the development of a transverse ledge on the narrowest part of the mandibular symphysis, narrow, elongate and hypsodont third molars, the development of fourth loph(id)s on the second molars, and the development of small enamel conules and cementum in the interloph(id)s. Following comparisons with other Eurasian platybelodonts, we assign these remains to Platybelodon grangeri, and demonstrate that they are morphologically intermediate between P. grangeri from the Tunggurian localities of Tarim Nor and Platybelodon Quarry in Inner Mongolia. We suggest that the locality of Laogou may be younger than that of Zengjia, based on the occurrence of platybelodonts showing a suite of more derived characters. In addition, we assign two further specimens of Platybelodon from the lower Middle Miocene Dongxiang Formation of the Linxia Basin to Platybelodon danovi, owing to their retention of plesiomorphic characters distinguishing them from other Linxia Platybelodon fossils. Based on a cladistic analysis, we propose an evolutionary sequence of platybelodonts in Eurasia, and discuss potential functional adaptations.
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  • Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, 142 Xizhimenwai Street, Beijing 100044, China
  • Hezheng Paleozoological Museum, Hezheng 731200, China
  • Hezheng Paleozoological Museum, Hezheng 731200, China
  • Alexeeva, L.I. 1971. On a mastodon from Oshi locality (Western Mongolia) [in Russian]. Mesozoic and Cenozoic fauna of western Mongolia, Transaction 3: 71–76.
  • Barbour, E.H. 1929. Torynobelodon loomisi, gen. et sp. nov. Bulletin of the Nebraska State Museum 16: 147–153.
  • Beliajeva, E.I. and Gabunia, L.K. 1960. New finds concerning Platybelodontinae from the Casucasus [in Russian]. Trudy Instituta Paleobiologii. Akademia Nauk Gruzinskoi SSR V: 63–105.
  • Borissiak, A. 1929. On a new direction in the adaptive radiation of mastodonts. Palaeobiologica 2: 19–33.
  • Chen, G.−F. 1978. Mastodont remains from the Miocene of Zhongning–Tongxin area in Ningxia [in Chinese]. Vertebrata PalAsiatica 16: 103–110.
  • Chen, G.−F. 1988. Mastodont remains from the Miocene of Junggar Basin in Xinjiang [in Chinese, with English summary]. Vertebrata PalAsiatica 26: 265–277.
  • Deng, T. 2004a. Establishment of the middle Miocene Hujialiang Formation in the Linxia Basin of Gansu and its features [in Chinese, with English abstract]. Journal of Stratigraphy 28: 307–312.
  • Deng, T. 2004b. Evolution of the late Cenozoic mammalian faunas in the Linxia Basin and its background relevant to the uplift of the Qinghai−Xizang Plateau [in Chinese, with English abstract]. Quaternary Sciences 24: 413–420.
  • Deng, T., Wang, X.−M., Ni, X.−J., and Liu, L.−P. 2004a. Sequence of the Cenozoic mammalian faunas of the Linxia Basin in Gansu, China. Acta Geologica Sinica 78: 8–14.
  • Deng, T., Wang, X.−M., Ni, X.−J., Liu, L.−P., and Liang, Z. 2004b. Cenozoic stratigraphic sequence of the Linxia Basin in Gansu, China and its evidence from mammal fossils [in Chinese, with English summary]. Vertebrata PalAsiatica 42: 45–66.
  • Deng, T., Hou, S.−K., and Wang, H.−J. 2007. The Tunggurian Stage of the continental Miocene in China. Acta Geologica Sinica 81: 709–721.
  • Deng, T., Qiu Z.−X., Wang, B.−Y., Wang X.−M., and Hou, S.−K. 2012. Late Cenozoic biostratigraphy of the Linxia Basin, northwestern China. In: X.M. Wang, L.J. Flynn, and M. Fortelius (eds.), Neogene Terrestrial Mammalian Biostratigraphy and Chronology of Asia, 243–273. Columbia University Press, New York.
  • Gaziry, A.W. 1976. Jungtertiäre Mastodonten aus Anatolien (Türkei). Geologisches Jahrbuch B 22: 3–143.
  • Guan, J. 1988. The Miocene strata and Mammals from Tongxin, Ningxia and Guanghe, Gansu [in Chinese]. Memoirs of Beijing Natural History Museum 42: 1–21.
  • Guan, J. 1996. On the shovel−tusked elephantoids from China. In: J. Shoshani and P. Tassy (eds.), The Proboscidea: Evolution and Palaeoecology of Elephants and Their Relatives, 124–135. Oxford University Press, Oxford.
  • Lambert, W.D. 1990. Rediagnosis of the genus Amebelodon (Mammalia, Proboscidea, Gomphotheriidae), with a new subgenus and species, Amebelodon (Konobelodon) britti. Journal of Paleontology 64: 1032–1040.
  • Lambert, W.D. 1992. The feeding habits of the shovel−tusked gomphotheres: evidence from tusk wear patterns. Paleobiology 18: 132–147.
  • Lambert, W.D. 1996. The biogeography of the gomphotheriid proboscideans of North America. In: J. Shoshani and P. Tassy (eds.), The Proboscidea: Evolution and Palaeoecology of Elephants and Their Relatives, 143–148. Oxford University Press, Oxford.
  • Maglio, V.J. 1969. A shovel−tusked gomphothere from the Miocene of Kenya. Breviora 310: 1–10.
  • Markov, G.N. 2008. Fossil proboscideans (Mammalia) from the vicinities of Varna: a rare indication of middle Miocene vertebrate fauna in Bulgaria. Historia naturalis bulgarica 19: 137–152.
  • Osborn, H.F. 1929. The revival of central Asiatic Life. Natural History 29: 2–16.
  • Osborn, H.F. and Granger, W. 1931. The shovel−tuskers, Amebelodontinae, of central Asia. American Museum Novitates 470: 1–12.
  • Osborn, H.F. and Granger, W. 1932. Platybelodon grangeri, three growth stages, and a new serridentine from Mongolia. American Museum Novitates 537: 1–13.
  • Qiu, Z.−X., Wu, W.−Y., and Qiu, Z.−D. 1999. Miocene mammal faunal sequence of China: Palaeozoogeogrphy and Eurasian relationships. In: G.E. Rössner and K. Heissig (eds.), The Miocene Land Mammals of Europe, 443–455. Verlag Dr. Friedrich Pfeil, München.
  • Tassy, P. 1983. Les Elephantoidea Miocènes du Plateau du Potwar, Groups de Siwalik, Pakistan. Ire Partie: Cadre chronologique et géographique, Mammutidés, Amébélodontidés. Annales de Paléontologie 69: 99–136.
  • Tassy, P. 1984. Le mastodonte à dents étroites, le grade trilophodonte et la radiation initiale des Amebelodontidae. In: E. Buffetaut, J.M. Mazin, and E. Salmon (eds.), Actes du symposium paléontologique Georges Cuview, 459–473. Impressions le Serpentaire, Montbéliard.
  • Tassy, P. 1986.Nouveaux Elephantoidea (Proboscidea, Mammalia) dans le Miocène du Kenya: Essai de Réévaluation Systématique, 43–65. Cahiers de Paléontologie. Éditions du Centre National de la Recherche Scientifique, (CNRS), Paris.
  • Tassy, P. 1996a. Dental homologies and nomenclature in the Proboscidea. In: J. Shoshani and P. Tassy (eds.), The Proboscidea: Evolution and Palaeoecology of Elephants and Their Relatives, 21–25. Oxford University Press, Oxford.
  • Tassy, P. 1996b. Growth and sexual dimorphism among Miocene elephantoids: the example of Gomphotherium angustidens. In: J. Shoshani and P. Tassy (eds.), The Proboscidea: Evolution and Palaeoecology of Elephants and Their Relatives, 92–100. Oxford University Press, Oxford.
  • Tobien, H. 1973. The structure of the mastodont molar (Proboscidea, Mammalia). Part 1: The bunodont patterns. Mainzer Geowissenschaftliche Mitteilungen 2: 115–147.
  • Tobien, H., Chen, G.−F., and Li, Y.−Q. 1986. Mastodonts (Proboscidea, Mammalia) from the late Neogene and early Pleistocene of the People' s Republic of China. Part I: Historical account: the genera Gomphotherium, Choerolophodon, Synconolophus, Amebelodon, Platybelodon, Sinomastodon. Mainzer Geowissenschaftliche Mitteilungen 15: 119–181.
  • Wang, B.−Y. and Qiu, Z.−X. 2002. A new species of Platybelodon (Gomphotheriidae, Proboscidea, Mammalia) from early Miocene of the Danghe area, Gansu,China [in Chinese, with English summary]. Vertebrata PalAsiatica 40: 291–299.
  • Wang, X.−M., Qiu, Z.−D., and Opdyke, N.D. 2003. Litho−, bio−, and magnetostratigraphy and paleoenvironment of Tunggur Formation (middle Miocene) in central Inner Mongolia, China. American Museum Novitates 3411: 1–31.
  • Ye, J. and Jia, H. 1986. Platybelodon (Proboscidea, Mammalia) from the middle Miocene of Tongxin, Ningxia [in Chinese, with English summary]. Vertebrata PalAsiatica 24: 103–110.
  • Ye, J., Qiu, Z.−X., and Chen, J.−Z. 1989. Comparative study of a juvenile skull of Platybelodon tongxinensis[in Chinese, with English summary]. Vertebrata PalAsiatica 27: 284–330.
  • Ye, J., Wu, W.−Y., and Jia, H. 1990. Reconstruction of the jaw−closing muscles of Platybelodon tongxinensis(Amebelodontidae, Proboscidea) and discussion of cranial evolution from long−jawed mastodont to shortjawed elephantid [in Chinese, with English summary]. Vertebrata PalAsiatica 28: 284–295.
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