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Naturwissenschaften

, Volume 95, Issue 12, pp 1169–1174 | Cite as

A new bolosaurid parareptile, Belebey chengi sp. nov., from the Middle Permian of China and its paleogeographic significance

  • Johannes Müller
  • Jin-Ling Li
  • Robert R. Reisz
Short Communication

Abstract

A new bolosaurid parareptile, Belebey chengi sp. nov., is described from Dashankou, Gansu Province, China, a Middle Permian locality which is known mostly for its therapsid fauna. The material consists of well-preserved mandibular and anterior skull remains and currently represents the largest and latest surviving member of Bolosauridae. Phylogenetic analysis of bolosaurid interrelationships, the first analysis of any clade of Early Permian parareptiles, indicates that the new taxon groups consistently with the other (Russian) members of the genus Belebey, and forms the sister clade to the genus Bolosaurus from North America. The Early Permian Eudibamus cursoris from Germany falls into the basal most position within Bolosauridae. Our analysis also shows that the split between the main bolosaurid lineages must have occurred near or before the Permo-Carboniferous boundary and that the paleo-equatorial region of Laurasia probably served as the center of origination for these parareptiles. A similar pattern can be found in other clades of Paleozoic amniotes, suggesting that this may be the general trend in early amniote evolution.

Keywords

Parareptilia Bolosauridae Middle Permian China 

Notes

Acknowledgments

This study was financially supported by the Deutsche Forschungsgemeinschaft (DFG Mu 1760/2-3, to J.M.), and an NSERC discovery grant (to R.R.).

References

  1. Berman DS, Reisz RR, Scott D, Henrici AC, Sumida SS, Martens T (2000) Early Permian Bipedal Reptile. Science 290:969–972PubMedCrossRefGoogle Scholar
  2. Cheng ZW, Li JL (1997) A new genus of primitive dinocephalian—the third report on Late Permian Dashankou lower tetrapod fauna. Vert PalAsiat 35:35–43Google Scholar
  3. Cope ED (1878) Descriptions of extinct Batrachia and Reptilia from the Permian formation of Texas. Proc Am Philos Soc 17:505–530Google Scholar
  4. deBraga M, Reisz RR (1996) The early Permian reptile Acleistorhinus pteroticus and its phylogenetic position. J Vertebr Paleontol 16:384–395Google Scholar
  5. Gow CE (1972) The osteology and relationships of the Millerettidae (Reptilia: Cotylosauria). Proc Zool Soc Lond 167:219–264CrossRefGoogle Scholar
  6. Ivakhnenko MF (1973) New Cisuralian cotylosaurs. Paleont Zh 1973:131–134Google Scholar
  7. Ivakhnenko MF, Tverdochlebova GI (1987) A revision of the Permian bolosauromorphs of eastern Europe. Paleont Zh 1987:98–106Google Scholar
  8. Li JL, Cheng ZW (1995) The first discovery of bolosaurs from Upper Permian of China. Vert PalAsiat 33:17–23Google Scholar
  9. Li JL, Cheng ZW (1997) First discovery of eotitanosuchian (Therapsida, Synapsida) of China. Vert PalAsiat 35:268–282Google Scholar
  10. Li JL, Cheng ZW (1999) New anthracosaur and temnospondyl amphibians from Gansu, China—the fifth report on Late Permian Dashankou lower tetrapod fauna. Vert PalAsiat 37:234–247Google Scholar
  11. Modesto SP (2000) Eunotosaurus africanus and the Gondwanan ancestry of anapsid reptiles. Palaeont Afr 36:199–215Google Scholar
  12. Modesto SP (2006) The cranial skeleton of the Early Permian aquatic reptile Mesosaurus tenuidens: implications for relationships and palaeobiology. Zool J Linn Soc 146:345–368CrossRefGoogle Scholar
  13. Müller J, Reisz RR (2005) An early captorhinid reptile (Amniota, Eureptilia) from the Upper Carboniferous of Hamilton, Kansas. J Vertebr Paleontol 25:561–568CrossRefGoogle Scholar
  14. Müller J, Reisz RR (2006) The phylogeny of early eureptiles: comparing parsimony and Bayesian approaches in the investigation of a basal fossil clade. Syst Biol 55:503–511PubMedCrossRefGoogle Scholar
  15. Müller J, Tsuji LA (2007) Impedance-matching hearing in Paleozoic reptiles: evidence of advanced sensory perception at an early stage of amniote evolution. PLoS ONE 2(9):e889 doi: 10.1371/journal.pone.0000889 PubMedCrossRefGoogle Scholar
  16. Müller J, Berman DS, Henrici AC, Sumida SS, Martens T (2006) The basal eureptile Thuringothyris mahlendorffae from the Lower Permian of Germany. J Paleontol 80:726–739CrossRefGoogle Scholar
  17. Reisz RR, Scott D (2002) Owenetta kitchingorum, n. sp., a small parareptile (Procolophonia: Owenettidae) from the Lower Triassic of South Africa. J Vertebr Paleontol 38:224–256Google Scholar
  18. Reisz RR, Barkas V, Scott D (2002) A new Early Permian bolosaurid reptile from the Richards Spur Dolese Brothers Quarry, near Fort Sill, Oklahoma. J Vertebr Paleontol 22:23–28CrossRefGoogle Scholar
  19. Reisz RR, Müller J, Tsuji LA, Scott D (2007) The cranial osteology of Belebey vegrandis (Parareptilia: Bolosauridae) from the Middle Permian of Russia, and its bearing on reptilian evolution. Zool J Linn Soc 151:191–214CrossRefGoogle Scholar
  20. Swofford DL (2002) PAUP* phylogenetic analysis using parsimony. Version 4.08. Sinauer, SunderlandGoogle Scholar
  21. Watson DMS (1954) On Bolosaurus and the origin and classification of reptiles. Bull Mus Comp Zool 111:297–449Google Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Johannes Müller
    • 1
  • Jin-Ling Li
    • 2
  • Robert R. Reisz
    • 3
  1. 1.Humboldt-Universität zu BerlinMuseum für NaturkundeBerlinGermany
  2. 2.Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijingPeople’s Republic of China
  3. 3.Department of BiologyUniversity of Toronto at MississaugaMississaugaCanada

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