Genus: Pappotherium SLAUGHTER, 1965
Etymology: Greek, pappos, “grandfather” and Greek, therin, “beast, mammal”: Grandfather mammal.
= Slaughteria BUTLER, 1978
Etymology: In honor of Bob H. Slaughter, vertebrate paleontologist and scholar of early mammals.

Species: pattersoni SLAUGHTER, 1965
Etymology:

Holotype: SMP-SMU 61725

Locality: In a shallow gully 250 yards northeast of US Highway 81, 3 miles northwest of Decatur, Wise County, Texas, on the farm of Mr. Lee Butler, Texas.

Horizon: Upper Trinity Group.

Biostratigraphy:

Age: Comanchean, Lower Cashenranchian age, Early to Middle Albian Stage, Middle Gallic subepoch, upper Early Cretaceous Epoch, Early Cretaceous.
Note: probably of Paluxian age, Early Cretaceous (as per SLAUGHTER, 1965).

Material: Right maxillary fragment containing the last two molars.

Referred material:

SLAUGHTER

SMP-SMU 61947: Lower premolar.

SMP-SMU 61948: Premolar.

 

BUTLER, 1978

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 884:

CNHM PM 930: Rmx (trigonid only).

CNHM PM 1015: LM3 missing metastylar lobe nad protoconal region.

CNHM PM 1075:

CNHM PM 1119: Rmx (trigonid only).

CNHM PM 1249: Rmx (trigonid only).

CNHM PM 1325: LM2 protoconal region only.

SMP-SMU 62402: Upper Molars.

SMP-SMU 62399: Premolar.

 

CIFELLI & DAVIS, 2015

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:

OMNH 62417: LM2 lacking the protocone.

OMNH 51433: The distobuccal corner of LM3.

OMNH 67413: A fragmentary RM4.

OMNH 52427: Lmx preserving the trigoind only.

 

DAVIS & CIFELLI, 2011

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:

OMNH 61185: RM3 missing metastylar lobe.

OMNN 61219: Lmx (trigonid only).

OMNH 63729: Rmx (trigonid only).

 

SLAUGHTER, 1971

Locality: Butler Farm, 5km northwest of Decatur, 230 m northeast of U. S. Highway 81, on the property of Mr. Lee Butler, Wise County, North-Central 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:

SMP-SMU 62402: Upper molar.

 

= Slaughteria eruptens BUTLER, 1978
Etymology:

Holotype: SMP-SMU 61992

Locality: Butler Farm, 5km northwest of Decatur, 230 m northeast of U. S. Highway 81, on the property of Mr. Lee Butler, Wise County, North-Central Texas.

Horizon: About 30 m below the Antlers Formation, Trinity Group.

Biostratigraphy:

Age: Cashenranchian age, Lower-Middle Albian Stage, middle Gallic subepoch, lower Cretaceous Epoch, Early Cretaceous.

Material: Mandibular fragment with 2 molars, and 2 premolars, the anterior premolar in process of eruption.

Referred material:

DAVIS, 2011

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

Horizon: Middle Antlers Formation.

Biostratigraphy:

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

Material:

OMNH 63721: A fragmentary right lower molar preserving only the talonid.

OMNH 63726: A right lower molar.

DAVIS & CIFELLI, 2011

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:

PM 1098: Rp5.