Species: altmani ESTES, 1964
Etymology: In honor of Verleigh Altman of Lusk, Wyoming, who kindly allowed the University of California field parties to camp on his land.
Holotype: UCMP 46610
Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Complete left dentary.
Referred material:
UCMP 46064: Right dentary, showing anterior teeth.
UCMP 46079: Anterior half of left dentary.
UCMP 46081: Posterior tip of left maxilla.
UCMP 46085: Posterior half of right dentary.
UCMP 46101: Left dentary, broken posteriroly.
UCMP 46106: Left maxilla.
UCMP 46609: Essentially complete right dentary.
UCMP 47834: Left dentary showing crown wear.
UCMP 47846: Left dentary, broken anteriorly and posteriorly.
UCMP 47848: Right dentary, broken posteriorly.
UCMP 47853: Right dentary.
UCMP 47859: Right maxilla, broken anteriorly.
UCMP 47865: Right dentary and associated splenial, broken posteriorly.
UCMP 47866: Right dentary, showing crown wear.
Locality: UCMP V-5711, Bushy Tailed Blowout, Quarry area includes the floor of a small blowout approximately 10 yards northwest of the highest point on the ridge forming the northeastern side of the blowouts of loc. V-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River Basin, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 49837: Posterior tip of right maxilla.
UCMP 49841: Right dentary and associated splenial.
UCMP 54266: Complete left maxilla.
GAO & FOX, 1996
UALVP 29831: Maxillary.
UALVP 29974, 29777, 29834: Dentaries.
Many other specimens are present from these and other localities, U. C. localities V-5616, V-5618, V-5620, V-5623, V-5711, V-5815 and V-5817.
UC V-5616, Altman Blowout, this large blowout, site of the UCMP field-party camps from 1956 to 1960, is just east of the crest of the divide separating Lance Creek and Hancock Creek and 100 yards east of a dirt road. Fossils were found in anthills, talus, and sandstone exposed in the blowout, which is in the NE 1/4, Sec. 9, T37N, R64W, Eastern Wyoming.
Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.
Locality: UCMP V-5711, Bushy Tailed Blowout, Quarry area includes the floor of a small blowout approximately 10 yards northwest of the highest point on the ridge forming the northeastern side of the blowouts of loc. V-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River Basin, Niobrara County, Wyoming.
Locality: UCMP V-5815, Hatcher Number 2, western side of a cross-stratified sandstone erosional remnant near the center of a large blowout on the crest of a ridge, the distance form the nearest point on the road, approximately 150 yards south of the quarry, to the Johnson ranch is 0.4 miles, Niobrara County (Formerly Converse County), Eastern Wyoming.
Locality: UCMP V-5817, False Disciple Point, cross-stratified sandstone and sandy shales cropping out on the top of the northern end of a long, northwestward-trending ridge that extends from the crest of the divide between the Hancock and Lance Creek drainages, Niobrara County (Formerly Converse County), Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Numbers: Not given:
BREITHAUPT, 1985
Locality: Wyoming.
Horizon: "Mesaverde" Formation.
Biostratigraphy:
Age: Judithian Age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given:
GAO & FOX, 1996
Locality: Gryde Locality, Frenchman River Valley, Southwestern Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
SMNH P1927.900, P1927.918, P1927.960, P1927.999, P2004.91: 5 Incomplete maxillaries.
SMNH P1927.887, P1927.895, P1927.903, P1927.915: 4 fragmentary dentaries.
Locality: Wounded Knee Locality, Frenchman River Valley, Southwestern Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 29833: Fragmentary maxilla.
Locality: Bug Creek Anthills locality, McCone County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 29775, 29779: Maxillaries.
UALVP 29776, 29831: Dentaries.
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Species: molybrochoros NYDAM, & VOCI, 2007
Etymology: Greek, molybros, 'blue (lead colored', and Greek, choros, 'place';
the specific name is in reference to "The Blues," a region of badland exposures
of teh Kaiparowits Formation wehre the type and only known speicmen was found.
Holotype: OMNH 23743
Locality: OMNH locality V61, approximately 14 km northeast o fthe town of Henrieville, Garfield County, Utah.
Horizon: Lower Kaiparowits Formation.
Biostratigraphy:
Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Broken rigth denatry preserving 6 teeth.