Species: wyomingensis GILMORE, 1928
Etymology:
Holotype: USNM 10797
Locality: Lance Creek, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Median portion of the left dentary.
Referred material:
BRAMAN, 1988
Locality: Red Deer River Valley, Alberta Province, Canada.
Horizon: Old Edmonton Formation.
Biostratigraphy:
Age: Edmontonian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: 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:
BRYANT, 1990
Locality: Eastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 130727: Dentary.
UCMP 130729: Dentary.
ESTES, 1964
Locality: UCMP 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: A few unnumbered specimens.
Localities: UC V-5616, Altman Blowout, this large blowout, site of the UCMP field-party camps form 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.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: A few unnumbered specimens.
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:
UCMP 46036: Posterior part of left maxilla.
UCMP 46041: Complete right dentary.
UCMP 46603: Posterior part of maxilla of small individual.
UCMP 47742: Anterior broken end of right dentary.
UCMP 47746: Anterior end of left dentary of small individual.
UCMP 47752: Right dentary of small individual broken anteriorly and posteriorly.
UCMP 49891: Anterior end of left maxilla.
UCMP 49892: Anterior end of left dentary.
UCMP 49900: Posterior part of right maxilla.
UCMP 49935: Anterior half of left maxilla.
USNM 10800: Maxilla.
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 49792: Anterior end of left dentary.
UCMP 49796: Anterior end of right maxilla.
UCMP 49799: Left maxilla broken anteriorly and posteriorly.
UCMP 54200: Parietal.
AMNH 8103: Frontal.
Unnumbered specimens.
GAO & FOX, 1996
UALVP 33351-33353: Incomplete tooth-bearing maxillaries.
UALVP 33354: Frontal.
UALVP 1612, 1616, 33355, 33356: Incomplete tooth-bearing dentaries.
Localities: UC V-5616, Altman Blowout, this large blowout, site of the UCMP field-party camps form 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.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Unnumbered specimens.
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.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Unnumbered specimens.
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: Unnumbered specimens.
ESTES, BERBERIAN & MESZOELY 1969
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:
MCZ 3664: A few dentary and maxillary fragments and a parietal.
GAO & FOX, 1996
UALVP 33357-33360: Tooth-bearing maxillary fragments.
UALVP 33361: and several unnumbered dentaries.
UALVP 33362, 33363: Toothed pterygoids.
UALVP 33364, 33365: Parietals.
GAO & FOX, 1996
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 33347: Premaxillary with 2 teeth.
UALVP 33348: Right maxillary fragment with 2 teeth.
UALVP 33349: Incomplete left dentary having 10 tooth positions.
UALVP 33350: Dorsal vertebra.
Locality: KUA-1 locality, Red Deer River Valley near the village of Scollard, Stettler County, central Alberta Province, Canada.
Horizon: Scollard Formation, Uppermost Edmonton Group.
Biostratigraphy:
Age: Lancian Age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 33384: Fragmentary maxillary with 2 teeth.
LANGSTON
Locality: Scollard Canyon Area, Alberta Province, Canada.
Horizon: Scollard Formation, Uppermost Edmonton Group.
Biostratigraphy:
Age: Lancian Age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Mandibular fragment.
= cf. Parasaniwa wyomingensis NYDAM, ROWE & CIFELLI, 2013
Locality: Terlingual local fauna, OMNH V58/TMM 43057, lies 8 km NNE of Study Butte, Brewster County, Texas.
Horizon: Aguja Formation.
Biostratigraphy:
Age: Judithian Age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
OMNH 30882: Right dentary fragment.
OMNH 30883: Dentary fragment.
TMM 43057-403: Dentary fragment.
TMM 43057-266: Jaw fragment.
TMM 43057-399: Jaw fragment.
SAHNI, 1972
Locality: Clambank Hollow, just north of the Judith River on the Missouri River in north-central Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
AMNH 8499: Left dentary fragment.
AMNH 8503: Anterior portion of maxilla.
= cf Parasaniwa wyomingensis RUSSELL, 1987Locality: Henry Farm locality, Scollard Canyon, Alberta Province, Canada.
Horizon: Scollard Formation, Uppermost Edmonton Group.
Biostratigraphy:
Age: Lancian Age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.
Material:
ROM 26341: Mandible fragment.
STENERSON & O’CONNER, 1994
Locality: Northwestern South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
Species: obtusa GILMORE, 1928
Etymology:
Holotype: USNM 10798
Locality: Lance Creek, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Posterior portion of a right dentary with 1 tooth.