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Pseudoptera hornensis

Geological Range

Cenomanian to Maastrichtian

Paleogeographic Distribution

Texas to Montana

Stratigraphic Occurrences

Maastrichtian
Fox Hills Formation (WY)
Fox Hills Formation (Timber Lake Member) (SD)
Fox Hills Formation (Trail City Member) (SD)
Campanian
Pierre Shale (MT)
Cenomanian
Woodbine Formation (TX)
Woodbine Formation (Lewisville Member) (TX)
Unknown Stage
Marias River Shale (Kevin Member) (MT)
Pierre Shale (SD)
<i> Pseudoptera hornensis </i> from the Cenomanian Woodbine Fm. of Texas (Stephenson 1953).
Pseudoptera hornensis from the Cenomanian Woodbine Fm. of Texas (Stephenson 1953).
Stratigraphic position unknown
Stratigraphic position unknown