Gypsonictops

Gypsonictops
Temporal range: Late Cretaceous Possible Paleocene record
P4 tooth of a specimen
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Leptictida
Family: Gypsonictopidae
Van Valen, 1967
Genus: Gypsonictops
Simpson, 1927
Species
  • G. clemensi
  • G. dormaalensis
  • G. hypoconus
  • G. illuminatus
  • G. lewisi
  • G. petersoni

Gypsonictops is an extinct genus of leptictidan mammals of the family Gypsonictopidae, which was described in 1927 by George Gaylord Simpson. Species in this genus were small mammals and the first representatives of the order Leptictida,[1] that appeared during the Upper Cretaceous.

The genus is thought to have gone extinct before the Cenozoic began, but there are indications that it may have survived into the early Paleocene. Fossils have been found in the United States, Belgium, and Uzbekistan.[2]

Like Cimolestes or Daulestes, it is possible that they had some distant relationship with the ungulates.[3] It is one of the few eutherians that existed in North America during the Campanian, a period in which the multituberculates and the metatherians were the dominant ones on the continent.[2]

  1. ^ Martin Jehle (2007). Martin Jehle (ed.). "Insectivare-like mammals: Tiny teeth and their enigmatic owners". Retrieved May 4, 2008.
  2. ^ a b Trevor Dykes. "Gypsonictopidae". Mesozoic Mammals. Archived from the original on June 7, 2011. Retrieved May 4, 2008.
  3. ^ Qiang Ji (2002). The Earliest Eutherian Mammal (PDF). Vol. 416. Archived from the original (PDF) on 2007-05-09. {{cite book}}: |website= ignored (help)