Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-27T22:44:34.909Z Has data issue: false hasContentIssue false
  • English
  • Français

A new subfamily of geomyoid rodents (Mammalia) and a possible origin of Geomyidae

Published online by Cambridge University Press:  20 May 2016

William W. Korth  and
Dan S. Chaney
William W. Korth
Affiliation:
Rochester Institute of Vertebrate Paleontology, 928 Whalen Rd., Penfield, NY 14526 and Department of Earth Science and Science Education, Buffalo State College, Buffalo, NY 14222
Dan S. Chaney
Affiliation:
Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560
Get access Rights & Permissions [Opens in a new window]

Abstract

Two new species, Mojavemys galushai and Phelosaccomys neomexicanus, are described from the Barstovian of New Mexico. Both of these species are assigned to a new subfamily, the Mojavemyinae. It is uncertain as to whether this new subfamily should be referred to the Heteromyidae or Geomyidae.

Both Mojavemys an Phelosaccomys retain some heteromyid characteristics while developing advanced traits of geomyids. It is possible that these genera represent transitional forms between a heteromyid ancestor and advanced geomyines, thus deriving the Geomyidae directly from the Heteromyidae sometime in the middle Tertiary. It is also possible that the Mojavemyinae are a subfamily of heteromyids only convergent with geomyids. A third possiblity is that the mojavemyines are among a group of middle Tertiary geomyoids from which both Recent heteromyids and geomyids were derived.

Type
Research Article
Information
Journal of Paleontology , Volume 73 , Issue 6 , November 1999 , pp. 1191 - 1200
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

Akersten, W. A. 1973. Evolution of geomyine rodents with rooted cheek teeth. Unpublished Ph.D. dissertation, University of Michigan, Ann Arbor. 237 p.Google Scholar
Barnosky, A. D. 1986. Arikareean, Hemingfordian, and Barstovian mammals from the Miocene Colter Formation, Jackson Hole, Teton County, Wyoming. Bulletin of Carnegie Museum of Natural History, 26:1–69.Google Scholar
Bowdich, T. E. 1821. An Analysis of the Natural Classifications of Mammalia for the Use of Students and Travellers. J. Smith, Paris, 115 p.Google Scholar
Downs, T. 1956. The Mascall fauna from the Miocene of Oregon. University of California Publications, Geological Sciences, 31:199–354.Google Scholar
Fahlbusch, V. 1985. Origin and evolutionary relationships among geomyoids, p. 617–630. In Luckett, W. P. and Hartenberger, J.-L. (eds.), Evolutionary Relationships among Rodents a Multidisciplinary Analysis. NATO ASI Series A: Life Sciences, 92.Google Scholar
Galusha, T., and Blick, J. C. 1971. Stratigraphy of the Santa Fe Group, New Mexico. Bulletin of the American Museum of Natural History, 144:1–127.Google Scholar
James, G. T. 1963. Paleontology and nonmarine stratigraphy of the Cuyama Valley Badlands, California. University of California Publications, Geological Sciences, 45:1–145.Google Scholar
Korth, W. W. 1987. New rodents (Mammalia) from the late Barstovian (Miocene) Valentine Formation, Nebraska. Journal of Paleontology, 61:1058–1064.CrossRefGoogle Scholar
Korth, W. W. 1997. A new subfamily of primitive pocket mice (Rodentia, Heteromyidae) from the middle Tertiary of North America. Pludicola, 1:33–66.Google Scholar
Korth, W. W., and Reynolds, R. E. 1994. A hypsodont gopher (Rodentia, Geomyidae) from the Clarendonian (Miocene) of California. San Bernardino County Museum Association, Special Publication, 94-1:91–95.Google Scholar
Lindsay, E. H. 1972. Small mammal fossils from the Barstow Formation, California. University of California Publications, Geological Sciences, 93:1–104.Google Scholar
Matthew, W. D. 1910. On the osteology an relationships of Paramys and the affinities of he Ischyromyidae. Bulletin of the American Museum of Natural History, 28:43–72.Google Scholar
Rensberger, J. M. 1971. Entoptychine pocket gophers (Mammalia, Geomyoidea) of the early Miocene John Day Formation, Oregon. University of California Publications, Geological Sciences, 90:1–209.Google Scholar
Rensberger, J. M. 1973a. Pleurolicine rodents (Geomyoidea) of the John Day Formation, Oregon and their relationships to taxa from the early and middle Miocene, South Dakota. University of California Publications, Geological Sciences, 102:1–95.Google Scholar
Rensberger, J. M. 1973b. Sanctimus (Mammalia, Rodentia) and the phyletic relationships of the large Arikareean geomyoids. Journal of Paleontology, 47:835–853.Google Scholar
Shotwell, J. A. 1967. Late Tertiary geomyoid rodents of Oregon. Bulletin of the University of Oregon Museum of Natural History, 9:1–51.Google Scholar
Storer, J. E. 1973. The entoptychine geomyid Lignimus (Mammalia: Rodentia) from Kansas and Nebraska. Canadian Journal of Earth Sciences, 10:72–83.Google Scholar
Sutton, J. F., and Korth, W. W. 1996. Rodents (Mammalia) from the Barstovian (Miocene) Anceney local fauna, Montana. Annals of Carnegie Museum, 64:267–314.Google Scholar
Voorhies, M. R. 1990. Vertebrate paleontology of the proposed Norden Reservoir area Brown, Cherry, and Key Paha counties Nebraska. Technical Report 82-09, Division of Archeological Research, University of Nebraska–Lincoln, 730 p.Google Scholar
Wahlert, J. H. 1985. Skull morphology and relationships of geomyoid rodents. American Museum Novitates, 2812:1–6.Google Scholar
Wahlert, J. H., and Souza, R. A. 1988. Skull morphology of Gregorymys and relationships of the Entoptychinae (Rodentia, Geomyidae). American Museum Novitates, 2922:1–13.Google Scholar
Wilson, R. W. 1936. A Pliocene rodent fauna from Smiths Valley, Nevada. Carnegie Institute of Washington Publications, 472:17–34.Google Scholar
Wilson, R. W. 1949. Early Tertiary rodents of North America. Carnegie Institute of Washington Publications, 584:67–164.Google Scholar
Wood, A. E. 1935. Evolution and relationships of the heteromyid rodents with new forms from the Tertiary of western North America. Annals of Carnegie Museum, 24:73–262.CrossRefGoogle Scholar
Wood, A. E. 1936. Geomyid rodents from the middle Tertiary. American Museum Novitates, 866:1–31.Google Scholar
Wood, A. E., and Wilson, R. W. 1936. A suggested nomenclature for the cusps of the cheek teeth of rodents. Journal of Paleontology, 10:388–391.Google Scholar