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Baculites grandis

Geological Range

Baculites grandis Zone: Lower Maastrichtian 70.00 ± 0.45

Campanian to Maastrichtian

Paleogeographic Distribution

Kansas to Montana

Stratigraphic Occurrences

Maastrichtian
Pierre Shale (CO)
Pierre Shale (KS)
Pierre Shale (WY)
Campanian
Bearpaw Shale (Upper) (MT) [Campanian]
Pierre Shale (MT)
Pierre Shale (SD) [Campanian]
Unknown Stage
Fox Hills Formation (SD)
Pierre Shale (SD)
<i>Baculites grandis</i> from the Campanian Bearclaw Fm. near Fort Peck Lake, Montana (KUMIP 34575)
Baculites grandis from the Campanian Bearclaw Fm. near Fort Peck Lake, Montana (KUMIP 34575)
<i>Baculites grandis</i> from the Pierre Shale of Niobrara County, Wyoming (YPM IP 615140).
Baculites grandis from the Pierre Shale of Niobrara County, Wyoming (YPM IP 615140).
<i>Baculites grandis</i> (KUMIP 34574).
Baculites grandis (KUMIP 34574).
<i>Baculites grandis</i> (KUMIP 148414).
Baculites grandis (KUMIP 148414).
Stratigraphic position unknown
Stratigraphic position unknown