Modiolus meeki
Geological Range
Campanian to Maastrichtian
Paleogeographic Distribution
Colorado to Montana
Stratigraphic Occurrences
- Maastrichtian
- Fox Hills Formation (CO)
- Fox Hills Formation (MT)
- Fox Hills Formation (WY)
- Fox Hills Formation (Timber Lake Member) (SD)
- Fox Hills Formation (Trail City Member) (SD)
- Pierre Shale (MT)
- Pierre Shale (WY)
- Campanian
- Pierre Shale (SD) [Campanian]
- Unknown Stage
- Bear Paw Shale (MT)
- Hygiene Formation (CO)
- Pierre Shale (MT)
- Pierre Shale (SD)
