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Protostega gigas

Geological Range

Santonian

Paleogeographic Distribution

Kansas; Mississippi

Stratigraphic Occurrences

Santonian
Niobrara Formation (Smoky Hill) (KS)
Unknown Stage
Mooreville Formation (MS)
Niobrara Formation (Smoky Hill Mbr) (KS)
<i> Protostega gigas </i> from the Late Cretaceous (FHSMVP 17979).
Protostega gigas from the Late Cretaceous (FHSMVP 17979).
Stratigraphic position unknown
Stratigraphic position unknown