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Baculites perplexus

Geological Range

Baculites perplexus Zone: Middle Campanian

Campanian to Maastrichtian

Paleogeographic Distribution

Wyoming to Montana

Stratigraphic Occurrences

Maastrichtian
Pierre Shale (WY)
Campanian
Pierre Shale (SD) [Campanian]
Pierre Shale (WY) [Campanian]
Unknown Stage
Claggett Formation (MT)
Pierre Shale (WY)
Holotype of <i>Baculites perplexus</i> (USNM 108914). Original unmodified images provided by courtesy of the Smithsonian NMNH and adapted and presented here under a Creative Commons BY-NC 4.0 license (http://n2t.net/ark:/65665/369504f43-68cd-4abd-9eac-61f26a9b0fd6).
Holotype of Baculites perplexus (USNM 108914). Original unmodified images provided by courtesy of the Smithsonian NMNH and adapted and presented here under a Creative Commons BY-NC 4.0 license (http://n2t.net/ark:/65665/369504f43-68cd-4abd-9eac-61f26a9b0fd6).
<i>Baculites perplexus</i> from the Pierre Shale (Mitten Black Shale Member) of Niobrara County, Wyoming (YPM IP 201993).
Baculites perplexus from the Pierre Shale (Mitten Black Shale Member) of Niobrara County, Wyoming (YPM IP 201993).
Stratigraphic position unknown
Stratigraphic position unknown