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Pseudoperna congesta

Geological Range

Turonian to Campanian

Paleogeographic Distribution

Kansas to Montana

Stratigraphic Occurrences

Campanian
Pierre Shale (SD) [Campanian]
Santonian
Niobrara Formation (CO)
Niobrara Formation (Smoky Hill) (KS)
Coniacian
Niobrara Formation (Fort Hays Member) (CO)
Niobrara Formation (KS)
Niobrara Formation (Smoky Hill Member) (KS)
Turonian
Carlile Shale (KS)
Carlile Shale (Blue Hill Shale Member) (KS)
Carlile Shale (Fairport Member) (KS)
Unknown Stage
Fox Hills Formation (MT)
Mancos Shale (NM)
Niobrara Formation (CO)
Niobrara Formation (Smoky Hill Mbr) (KS)
Niobrara Formation (SD)
Niobrara Formation (WY)
<i>Pseudoperna congesta</i> from the Carlile Shale Formation (Fairport Member) of Rush County, Kansas (KUMIP 58900).
Pseudoperna congesta from the Carlile Shale Formation (Fairport Member) of Rush County, Kansas (KUMIP 58900).
<i>Pseudoperna congesta</i> from the Carlile Shale Formation (Fairport Member) of Hodgeman County, Kansas (KUMIP 58895).
Pseudoperna congesta from the Carlile Shale Formation (Fairport Member) of Hodgeman County, Kansas (KUMIP 58895).
<i>Pseudoperna congesta</i> from the Niobrara Formation (Smoky Hill Member) of Trego County, Kansas (FHSMIP 607).
Pseudoperna congesta from the Niobrara Formation (Smoky Hill Member) of Trego County, Kansas (FHSMIP 607).
<i> Pseudoperna congesta </i> from the Niobrara Fm. of Gove County, Kansas (FHSM 603).
Pseudoperna congesta from the Niobrara Fm. of Gove County, Kansas (FHSM 603).
<i> Pseudoperna congesta </i> from the Niobrar Fm. of Ellis County, Kansas (FHSMIP 1006).
Pseudoperna congesta from the Niobrar Fm. of Ellis County, Kansas (FHSMIP 1006).
Stratigraphic position unknown
Stratigraphic position unknown