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BRANDVOLD, BRANDVOLD & SWEENEY, 1996

Locality: Jones’ site, North-Central Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

Number: Not given: Several specimens.
Note: 2 tooth-marked bones that appear to show evidence of bone crushing by repeated hammering of teeth against the bone.

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BURNHAM, 1996

Locality: Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

Private collection:

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FIORILLO, 1990

Locality: Rattlesnake Butte Site in eastern Wheatland County Montana.

Horizon: Claggett Formation.
Note: Marine Formation.

Biostratigraphy:

Age: Earliest upper Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

ANSP 15805: Pedal ungual.

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HORNER, 1994

Locality: Maiasaura peeblesorum lower nesting ground, Willow Creek Anticline, Montana.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

YPM-PU 22458: Proximal tibia.

YPM-PU 23434: Distal femur.

WL-8-6-81: Proximal tibia.

MOR 279: Distal femur.

YPM-PU 23444: Skeletal elements.

YPM-PU 23438: Humerus.

WCA-WL-J: Proximal tibia.

YPM-PU 22472: Distal femur.

Eggshell fragments.