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Cucullaea nebrascensis

Geological Range

Campanian to Maastrichtian

Paleogeographic Distribution

New Mexico to Montana to South Dakota

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (SD)
Fox Hills Formation (Timber Lake Member) (SD)
Fox Hills Formation (Trail City Member) (SD)
Pierre Shale (WY)
Campanian
Pierre Shale (SD) [Campanian]
Unknown Stage
Bear Paw Shale (MT)
Pierre Shale (MT)
Pierre Shale (WY)
<i>Cucullaea nebrascensis</i> from the Fox Hills Formation of Dewey County, South Dakota (YPM 24666).
Cucullaea nebrascensis from the Fox Hills Formation of Dewey County, South Dakota (YPM 24666).
<i>Cucullaea nebrascensis</i> from the Fox Hills Formation of Ziebach County, South Dakota (YPM 24663).
Cucullaea nebrascensis from the Fox Hills Formation of Ziebach County, South Dakota (YPM 24663).
Stratigraphic position unknown
Stratigraphic position unknown