CLEMENS, 1973
Locality: San Juan Basin, New Mexico.
Horizon: Fruitland Formation.
Biostratigraphy:
Age: Kirtlandian Age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
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KOSTER, CURRIE, EBERTH, BRINKMAN, JOHNSTON & BRAMAN, 1987
Locality: Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
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MARSHALL & MUIZON, 1988
Locality: Tiupampa, Bolivia.
Horizon: Mammal-bearing level of the El Molino Formation.
Biostratigraphy:
Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
YPFB Pal 6131: LLM2?
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VAN VALEN, 1967
Locality: Harding County, South Dakota.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragmentary upper molar.
Locality: SDSM Locality V851, Zerbst Locality, east of the Cheyenne River, Niobrara County, Wyoming.
Horizon: Lance Formation.Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
SDSM 12365: M?