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Inoceramus involutus

Geological Range

Albian to Santonian

Paleogeographic Distribution

Texas to Washington

Stratigraphic Occurrences

Santonian
Niobrara Formation (CO)
Coniacian
Niobrara Formation (NE)
Unknown Stage
Austin Chalk (TX)
Carlile Shale (SD)
Niobrara Formation (Smoky Hill Mbr) (KS)
Niobrara Formation (SD)
Pysht Formation (WA)
<i>Inoceramus involutus</i> from the Niobrara Formation (Smoky Hill Member) (state unknown) (FHSMIP 1006).
Inoceramus involutus from the Niobrara Formation (Smoky Hill Member) (state unknown) (FHSMIP 1006).
<i>Inoceramus involutus</i> from the Niobrara Formation (Smoky Hill Member) of Ellis County, Kansas (FHSMIP 1775).
Inoceramus involutus from the Niobrara Formation (Smoky Hill Member) of Ellis County, Kansas (FHSMIP 1775).
Stratigraphic position unknown
Stratigraphic position unknown