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Acmaea parva

Geological Range

Campanian to Maastrichtian

Paleogeographic Distribution

South Dakota to Montana

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (SD)
Fox Hills Formation (Timber Lake Member) (SD)
Campanian
Pierre Shale (MT)
Pierre Shale (SD) [Campanian]
Unknown Stage
Pierre Shale (SD)
<i>Acmaea parva</i> (FHSMIP 1328).
Acmaea parva (FHSMIP 1328).
<i> Acmaea parva </i> from the Late Cretaceous Pierre Shale Fm. of Meade County, South Dakota (FHSMIP 1329).
Acmaea parva from the Late Cretaceous Pierre Shale Fm. of Meade County, South Dakota (FHSMIP 1329).

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