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Bryceomys

Extinct family of mammals

Summary

Extinct family of mammals

  • B. fumosus Eaton, 1995 (type)
  • B. hadrosus Eaton, 1995
  • B. intermedius Eaton and Cifelli, 2001 Bryceomys is an extinct mammal that lived during the late Cretaceous period (between 100 and 66 million years ago) and thus shared the world with dinosaurs. It was a member of the also extinct order of Multituberculata. It was within the suborder of Cimolodonta, and a member of the Paracimexomys group.

The genus Bryceomys ("Bryce mouse", after Bryce Canyon National Park) was named by Eaton J.G. in 1995.

Species

The species Bryceomys fumosus (Eaton 1995) is known from fossils found in strata dating to the Turonian (Upper Cretaceous) in the Straight Cliffs Formation of Utah, US. They probably weighed about 12g, about half the weight of a house mouse. About a hundred teeth are held at the Oklahoma Museum of Natural History, including the holotype.

Species: Bryceomys hadrosus Eaton J.G. 1995

Place: Straight Cliffs Formation of Utah

Age: Turonian (Upper Cretaceous)

Also in the Oklahoma collection. Suggested bodyweight is around 90 g.

Species: Bryceomys intermedius Eaton JG & Cifelli RL, 2001

Place: Cedar Mountain Formation, Utah

Age: Albian (late) - Cenomanian (early) (Upper Cretaceous)

References

  • Eaton (1995), "Cenomanian and Turonian (Early Late Cretaceous) multituberculate mammals from southwestern Utah". Journal of Vert Paleo 15(4), p. 761-784.
  • Eaton and Cifelli (2001), "Multituberculate mammals from near the Early-Late Cretaceous boundary, Cedar Mountain Formation, Utah". Acta Palaeontologica Polonica 46(4), p. 453-518
  • Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals". Paleontology 44, p. 389-429.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

cimolodonta late-cretaceous-mammals-of-north-america fossil-taxa-described-in-1995 prehistoric-mammal-genera
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