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Astartella varica

Geological Range

Desmoinesian to Missourian; Extinct.

Paleogeographic Distribution

Texas to Ohio.

Stratigraphic Occurrences

Missourian
Iola Limestone (OK)
Plattsburg Limestone (Hickory Creek Shale Member) (KS)
Stanton Limestone (Eudora Shale Member) (KS)
Desmoinesian
Mineral Wells Formation (TX)
Salesville Shale (TX)
Unknown Stage
Coal Measures (OH)
<i>Astartella varica</i> from the Salesville Shale of Palo Pinto County, Texas (KUMIP 253588).
Astartella varica from the Salesville Shale of Palo Pinto County, Texas (KUMIP 253588).
Missourian Map
Missourian Map
Desmoinesian Map
Desmoinesian Map