Genus: Oklatheridium DAVIS, CIFELLI & KIELAN-JAWOROWSKA, 2008
Etymology:

Species: szalayi DAVIS, CIFELLI & KIELAN-JAWOROWSKA, 2008
Etymology:

Holotype: OMNH 62410

Locality: Tomato Hill (OMNH locality V706), Atoka County, Oklahoma.

Horizon: Antlers Formation.

Biostratigraphy:

Age: Cashenranchian age, Aptian or Albian Stage, middle Gallic subepoch, lower Cretaceous Epoch, Early Cretaceous.

Material: LM2 missig the protoconal region of the crown.

Referred material:

OMNH 61180: LM1 missing the protoconal region.

OMNH 62411: LM1 missing the protocone.

OMNH 63986: RM3 missing the metastylar lobe and protoconal region.

AVERIANOV, 2015

OMNH 33940: Right mx trigonid.OMNH 33945: Left m4 trigonid.

OMNH 61642: Right dp3 trigonid.

OMNH 61643: Right mz trigonid.

OMNH 63725: left M2 with abraded crown and missing parastylar region.

OMNH 63728: Right mx trigonid.

OMNH 66771: Right mx trigonid.

OMNH 63730: Left mx trigonid.

 

AVERIANOV, 2015

= Pappotherium pattersoni BUTLER, 1978 referred material.

Locality: Tricondont Gully, Greenwood Canyon, near Forestburg, Montague County, Eastern Texas.

Horizon: Upper Antlers Formation, Trinity Group.

Biostratigraphy:

Age: Comanchean, Lower Cashenranchian age, Early to Middle Albian Stage, Middle Gallic subepoch, upper Early Cretaceous Epoch, Early Cretaceous.

Material:

CNHM PM 660: Lower molar.

CNHM PM 948: Lower molar.

CNHM PM 965: Lower molar.

CMNH PM 1287: Left m2.

CNHM PM 1749: LM2 missing metastylar lobe and protoconal region.

 

= Pappotherium pattersoni WINKLER, MURRY & JACOBS, 1989

Locality: Tricondont Gully, Greenwood Canyon, near Forestburg, Montague County, Eastern Texas.

Horizon: Upper Antlers Formation, Trinity Group.

Biostratigraphy:

Age: Comanchean, Lower Cashenranchian age, Early to Middle Albian Stage, Middle Gallic subepoch, upper Early Cretaceous Epoch, Early Cretaceous.

Material:

CMNH PM 1238: LM1.

= Oklatheridum minax DAVIS & CIFELLI, 2011
Etymology: Latin, minax, 'threatening'; in reference to the strongly-developed shearing crests in this taxon, and its larger size compared to the other deltatheroidans of the Trinty Group.

Holotype: OMNN 33455

Locality: Tomato Hill (OMNH locality V706), Atoka County, Oklahoma.

Horizon: Antlers Formation.

Biostratigraphy:

Age: Cashenranchian age, Aptian or Albian Stage, middle Gallic subepoch, lower Cretaceous Epoch, Early Cretaceous.

Material: LM2 missig the metacone and metastylar lobe.

Referred material:

OMNH 63727: RM3 missing the parastylar lobe and prtoconal region.

 

Locality: Tricondont Gully, Greenwood Canyon, near Forestburg, Montague County, Eastern Texas.

Horizon: Upper Antlers Formation, Trinity Group.

Biostratigraphy:

Age: Comanchean, Lower Cashenranchian age, Early to Middle Albian Stage, Middle Gallic subepoch, upper Early Cretaceous Epoch, Early Cretaceous.

Material:

CMNH PM 884: LM1 missing the protoconal region.

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Species: wiblei CIFELLI & DAVIS, 2015
Etymology: In honor of John R. Wible, in recognition of his contributions to understanding of early mammal evolution, and to the vertebrate paleontology of the Cloverly Formation.

Holotype: OMNH 67517

Locality: OMNH V1075 locality, Big Horn County, Wyoming.

Horizon: Lower Unit VII, Cloverly Formation.

Biostratigraphy:

Age: Cashinranchian, Albian Stage, Middle Gallic Subepoch, Late Early Cretaceous Epoch, Late Early Cretaceous.

Material: LM3 preserving the distobuccal corner only.

Referred material:

Locality: USNM locality 42183, Big Horn County, Wyoming.

Horizon: Unit V, Cloverly Formation.

Biostratigraphy:

Age: Cashinranchian, Albian Stage, Middle Gallic Subepoch, Late Early Cretaceous Epoch, Late Early Cretaceous.

Material:

USNM 546657: RM2 preserving the paracone adn parastylar lobe only.