Skip to Main Content

Clioscaphites vermiformis

Geological Range

Clioscaphites vermiformis Zone: Middle Santonian

Coniacian to Santonian

Paleogeographic Distribution

New Mexico to Montana

Stratigraphic Occurrences

Coniacian
Cody Shale (WY)
Marias River Formation (MT)
Niobrara Formation (Smoky Hill Member) (CO)
Niobrara Formation (KS)
Niobrara Formation (Smoky Hill Member) (KS)
Unknown Stage
Colorado Shale (MT)
Marias River Shale (Kevin Member) (MT)
Niobrara Formation (NM)
Holotype of <i>Clioscaphites vermiformis</i> (USNM 1902). Original unmodified images provided by courtesy of the Smithsonian NMNH and adapted and presented here under a Creative Commons BY-NC 4.0 license (NMNH GUID http://n2t.net/ark:/65665/33c3d03e0-7d90-4a9c-b38a-75ad21a18b27).
Holotype of Clioscaphites vermiformis (USNM 1902). Original unmodified images provided by courtesy of the Smithsonian NMNH and adapted and presented here under a Creative Commons BY-NC 4.0 license (NMNH GUID http://n2t.net/ark:/65665/33c3d03e0-7d90-4a9c-b38a-75ad21a18b27).
<i>Clioscaphites vermiformis toolensis</i> from the Coniacian Marias River Shale (Kevin Member) of Toole County, Montana (YPM 391248).
Clioscaphites vermiformis toolensis from the Coniacian Marias River Shale (Kevin Member) of Toole County, Montana (YPM 391248).
Stratigraphic position unknown
Stratigraphic position unknown