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Prionocyclus macombi

Geological Range

Prionocyclus macombi Zone: Middle Turonian 90.21 ± 0.54

Paleogeographic Distribution

Texas to South Dakota

Stratigraphic Occurrences

Turonian
Carlile Shale (SD)
Carlile Shale (TX)
Eagle Ford Shale (TX)
Mancos Shale (CO)
Mancos Shale (NM)
Mancos Shale (Cross Tongue Member) (NM)
Mancos Shale (Juana Lopez Member) (NM)
Holotype of <i>Prionocyclus macombi</i> (USNM 20259). 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:/65665/3c21d9ee6-b675-4edc-99f0-c934d73e42f5).
Holotype of Prionocyclus macombi (USNM 20259). 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:/65665/3c21d9ee6-b675-4edc-99f0-c934d73e42f5).
Stratigraphic position unknown
Stratigraphic position unknown