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Spirifer rockymontanus

Geological Range

Desmoinesian; Extinct.

Paleogeographic Distribution

New Mexico to Kansas.

Stratigraphic Occurrences

Desmoinesian
Cabaniss Formation (KS)
Unknown Stage
Magdalena Limestone (NM)
<i>Spirifer rockymontanus</i> from an unknown formation in the Magdalena Group of New Mexico (KUMIP 222911).
Spirifer rockymontanus from an unknown formation in the Magdalena Group of New Mexico (KUMIP 222911).
Desmoinesian Map
Desmoinesian Map
Stratigraphic position unknown
Stratigraphic position unknown