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Crassostrea subtrigonalis

Geological Range

Maastrichtian.

Paleogeographic Distribution

South Dakota.

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (Iron Lightning Member) (SD)
<i>Crassostrea subtrigonalis</i> from the Fox Hills Formation (Iron Lightning Member) of Ziebach County, South Dakota (YPM 24419).
Crassostrea subtrigonalis from the Fox Hills Formation (Iron Lightning Member) of Ziebach County, South Dakota (YPM 24419).

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