Eutriconodontans

DESCRIBER    Jenkins, F. A. Jr & Schaff, 1988
TIME    Cretaceous Early
CLASS    Mammalia
ORDER    Eutriconodonta
FAMILY    Gobiconodontidae
FOSSILSITE    Cloverly Formation,[Bridger (2 sites), Cashen Range], Montana, United States
FALL UNDER    Gobiconodon borissiaki
INFO

Gobiconodon borissiaki (Trofimov, 1978) > Gobiconodon hoburensis (Trofimov, 1978 )[ >> Guchinodon hoburensis (Trofimov, 1978 )] > Gobiconodon hopsoni (Rougier, Novacek, McKenna and Wible, 2001) > Gobiconodon ostromi (Jenkins and Schaff, 1988)  > Gobiconodon zofiae (Li, Wang, Hu & Meng, 2003) > Gobiconodon sp. (1) (Rougier, Novacek, McKenna & Wible, 2001) > Gobiconodon sp. (2) (Tang et al., 2001) > Gobiconodon sp. (3) (Cuenca-Bescós & Canudo, 2003 )

[Jenkins, F. A. Jr & Schaff, C. R. The Early Cretaceous mammal Gobiconodon (Mammalia, Triconodonta) from the Cloverly Formation in Montana. J. Vert. Paleontol. 6, 1±24 (1988).]

AMNH FM 129500  Gobiconodon ostromi is unusual in replacing its molariform teeth: the holotype shows presumptive m1 and m2 in successive stages of eruption, with an unerupted m3 below a functional molariform at that locus (Jenkins and Schaff, 1988). Simultaneously, the anterior premolars appear to be in the process of erupting.

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