Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-19T22:41:52.715Z Has data issue: false hasContentIssue false
  • English
  • Français

Hyaenodon venturae (Hyaenodontidae, Creodonta, Mammalia) from the Early Chadronian (Latest Eocene) of Wyoming

Published online by Cambridge University Press:  14 July 2015

Alexander V. Lavrov  and
Robert J. Emry
Alexander V. Lavrov
Affiliation:
Laboratory of Mammals, Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya 123, Moscow 117647, Russia
Robert J. Emry
Affiliation:
Department of Paleobiology, National Museum of Natural History, Washington, D.C. 20560
Get access Rights & Permissions [Opens in a new window]

Abstract

Two new specimens of Hyaenodon venturae from the early Chadronian (latest Eocene) of Wyoming provide new information about this rare, miniature hyaenodont, and extend the upper end of the temporal range of the species. The significant difference between H. venturae and H. microdon, the two smallest North American species of Hyaenodon, is the absence of synostosis of the mandibular symphysis in adult H. venturae. In Hyaenodon microdon, from the middle Chadronian, on the contrary, fusion of the symphysis is complete while the individual is still in the juvenile stage of ontogenesis, before the eruption of m3. Within the genus Hyaenodon the ml becomes relatively smaller as the length of the tooth row (pl-m3) increases; this relationship can be demonstrated in the series of species from the miniature H. venturae to the giant H. megaloides.

Type
Research Article
Information
Journal of Paleontology , Volume 72 , Issue 4 , July 1998 , pp. 752 - 757
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Beaumont, G. de. 1970. Le probleme de la position taxonomique de Hyaenaelurus Biedermann (Mammalia). Societe Vaudoise des Sciences Naturelles Bulletin, 70:357–363.Google Scholar
Douglass, E. 1901. Fossil Mammalia of the White River beds of Montana. Transactions of the American Philosophical Society, NS 20:237–278.Google Scholar
Emry, R. J. 1973. Stratigraphy and preliminary biostratigraphy of the Flagstaff Rim area, Natrona County, Wyoming. Smithsonian Contributions to Paleobiology, 18:1–43.Google Scholar
Emry, R. J. 1978. A new hypertragulid (Mammalia, Ruminantia) from the early Chadronian of Wyoming and Texas. Journal of Paleontology, 52:1004–1014.Google Scholar
Emry, R. J., Bjork, P. R., and Russell, L. S. 1987. The Chadronian, Orellan, and Whitneyan North American Land Mammal Ages, p. 118–152. In Woodburne, M. O. (ed.), Cenozoic Mammals of North America: Geochronology and Biostratigraphy. University of California Press, Berkeley.Google Scholar
Gervais, P. 1876. Zoologie et Paléontologie Genérales. Nouvelles Recherches sur les Animaux Vertébrés Vivants et Fossiles. Arthus Bertrand, Paris. 72 p.Google Scholar
Gustafson, E. P. 1986. Carnivorous mammals of the late Eocene and early Oligocene of Trans-Pecos Texas. Texas Memorial Museum Bulletin, 33:1–66.Google Scholar
Helbing, H. 1925. Die gattung Hyaenaelurus Biedermann. Eclogae geologicae Helvetiae, 19:214–245.Google Scholar
Kihm, A. J. 1987. Mammalian paleontology and geology of the Yoder Member, Chadron Formation, east-central Wyoming, p. 28–45. In Martin, J. E. and Ostrander, G. E. (eds.), Papers in Vertebrate Paleontology in Honor of Morton Green. Dakoterra, 3.Google Scholar
Laizer, L., and de Parieu, J. 1838. Description et détermination d'une mâchoire fossile appartenant à un mammiffère jusqu'à présent inconnu, Hyaenodon leptorhynchus . Comptes-rendus hebdomadaires des séances de l'Académie des Sciences, Paris 7:442.Google Scholar
Lange-Badré, B. 1979. Les creodontes (Mammalia) d'Europe occidental de l'Eocene superieur a l'Oligocene superieur. Mémoires du Muséum National d'Histoire Naturelle, Série C, 42, 249 p.Google Scholar
Leidy, J. 1869. The extinct mammalian fauna of Dakota and Nebraska. Journal of the Academy of Natural Sciences of Philadelphia, 7, 453 p.Google Scholar
Matthew, W. D. 1903. The fauna of the Titanotherium beds at Pipestone Springs, Montana. Bulletin of the American Museum of Natural History, 19:197–226.Google Scholar
Mellett, J. S. 1977. Paleobiology of North American Hyaenodon (Mammalia, Creodonta). Contributions to Vertebrate Evolution, Volume 1, 134 p. S. Karger, New York.Google Scholar
Rasmussen, D. T., Tilden, C. D., and Simons, E. L. 1989. New specimens of the giant creodont Megistotherium Hyaenodontidae from Maghara, Egypt. Journal of Mammalogy, 70:442–447.Google Scholar
Schlaikjer, E. M. 1935. Contribution to the stratigraphy and paleontology of the Goshen Hole area, Wyoming: 3. A new basal Oligocene formation. Bulletin of the Museum of Comparative Zoology, 76:72–93.Google Scholar
Stock, C. 1933. Hyaenodontidae of the upper Eocene of California. Proceedings of the National Academy of Science, 19:434–440.Google Scholar
Thorpe, M. R. 1922. A new species of Oligocene Hyaenodontidae. American Journal of Science, 3:277–287.Google Scholar