"Leonardo," a rare intact mummified Brachylophosaurus canadensis uncovered in the Judith River Formation.
Belly River beds exposed along the Oldman River
Contact (red arrow) between the underlying marine shales of the Bearpaw Formation and the coastal Horseshoe Canyon Formation.
"Leonardo," a rare intact mummified Brachylophosaurus canadensis uncovered in the Judith River Formation.
Bearpaw shale being excavated to recover ammonites for ammolite production.
A specimen of Placenticeras ammolite from the Bearpaw Formation.

It is overlain by the Bearpaw Formation.

- Judith River Formation

The Belly River Group is conformably overlain by the Bearpaw Formation and gradually overlies the Wapiabi Formation, the Colorado Group shale or the Lea Park Formation shale.

- Belly River Group

The Bearpaw Formation conformably overlies the Dinosaur Park Formation of the Belly River Group in central Alberta, and the Judith River Formation in the plains to the east and Montana.

- Bearpaw Formation

It is equivalent to the Belly River Formation in the southern Canadian Rockies foothills, the Lea Park Formation in central Alberta and the Wapiti Formation in the northwestern plains.

- Judith River Formation

The Belly River has group status in the Canadian Rockies foothills and is replaced by the Oldman Formation (Judith River Formation in Montana) and Foremost Formation in southern Alberta.

- Belly River Group
"Leonardo," a rare intact mummified Brachylophosaurus canadensis uncovered in the Judith River Formation.

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