Eggs of ?Troodon HIRSCH & QUINN, 1990.

Locality: TM-006, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material:

MOR 236/HEC 364: 3 partial elliptical eggs.

MOR 301/HEC 370A, 370/B: 2 elongated, elliptical eggs.

YPM-PU uncatalogued/HEC 240: 5 large eggshell fragments.

UCM 58030/HEC 477: Stray shell fragments.


Locality: Far Out Locality, TM-012, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material:

UCM 58022/HEC 345: 8 eggshell fragments.

 

 

Locality: One place locality, TM-012, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material:

UCM 58028/HEC 449-1: 25 nodes fragments.

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DERSTLER, 1995

Locality: Dragons’ Grave, Niobrara County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Eggshell scraps and juvenile bones.
Note: Found near an Edmontosaurus bonebed.
Note: Troodontidae.

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DIFLEY, BRITT & POLICELLI, 2004

Locality: Black Dragon Canyon, Emery County, Utah.

Horizon: North Horn Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Nest of 13 eggs.

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VARRICCHO, HORNER & JACKSON, 2002

Locality: Egg Island locality, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material:

MOR 246: Egg clutch with embryos.

MOR 246-1, -5, -7-11, -13, -16-19: Eggs with bones.

MOR 245-2, -4, -6, -12, -14, -15: Eggs.