Species: hollandi CASE, 1908
Etymology:

Holotype:

Locality: Pitcairn, Alleghany County, Pennsylvania.

Horizon: Round Knob Formation, Conemaugh Group.

Biostratigraphy:

Age: Late Pennsylvanian.

Material: Fragment of maxillary with 4 teeth.

Referred material:

= aff. D. hollandi BERMAN, 1993

Locality: El Cobre Canyon Locality, 8 km northwest of the small village of Abiquiu, Rio Arriba County, New Mexico.

Horizon: Upper Cutler Formation.

Biostratigraphy:

Age: Wolfcampian Stage, Lower Rotliegendes Epoch, Early Permian.

Material:

Number: Not given:

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Species: hesperis VAUGHN, 1969
Etymology: Greek, hesperos, "western."

Holotype: UCLA VP 1706

Locality: Near the town of Howard, NW 1/4 NE 1/4, SW 1/4, sec. 22, T49N, R10E, Arkansas River valley, Fremont County, Central Colorado.

Horizon: Sangre de Cristo Formation.

Biostratigraphy:

Age: Probably Missourian, Lower Stephanian, upper Silesian Stage, Kasimovian Epoch? Late Pennsylvanian (Late Carboniferous).

Material: Left maxilla.

Referred material:

UCLA VP 1712: Incisor tooth.

UCLA VP 1713: Cheek tooth.

UCLA VP 1710: Left half of atlantal neural arch.

UCLA VP 1707: Dorsal vertebra.

UCLA VP 1708: Caudal vertebra.

UCLA VP 1709: Caudal vertebra.

UCLA 1716: Chevron bone.

UCLA 1714: Right humerus.

UCLA 1715: Ungual phalanx.

UCLA 1717: Various elements including teeth, dorsal and caudal vertebrae, fragments of chevrons and limb bones, and phalangeal elements.

USNM 18602: Partial neural arch of dorsal vertebra.

VAUGHN, 1972

CM 47665 (formerly UCLA VP 1745): Braincase.

UCLA VP 1746: Right quadrate.

UCLA VP 1747: Right quadrate.

CM 47668 (formerly UCLA VP 1748): Right maxilla.

 

BERMAN & SUMIDA, 1995

Locality: Badger Creek Locality, Central Colorado.

Horizon: Sangre de Cristo Formation.

Biostratigraphy:

Age: Probably Missourian, Lower Stephanian, upper Silesian Stage, Kasimovian Epoch? Late Pennsylvanian (Late Carboniferous).

Material:

CM 47678: Left premaxilla.

CM 47677: Approximate anterior half of a right maxilla containing the first seven teeth.

CM 47670: The greater portions of an articulated right pterygoid and quadrate and closely associated dorsal and caudal vertebra preserved in a single large block, a nearly entire lower right jaw with an almost complete dentition, and the posterior end of a left jaw that includes the glenoid region of the articular and portions of the surangular and prearticular surrounding the adductor fossa.

CM 47574: A right platine.

CM 47676: A nearly entire left dentary with complete dentition.

CM 47673: Partial right pterygoid.

 

SUMIDA, LOMBARD & BERMAN, 1992

Locality: Fremont County, Colorado.

Horizon: Sangre de Cristo Formation.

Biostratigraphy:

Age: Probably Missourian, Lower Stephanian, upper Silesian Stage, Kasimovian Epoch? Late Pennsylvanian (Late Carboniferous).

Material:

CM 47665 (formerly UCLA VP 1465): Partial disarticulated skeleton.