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Collignoniceras praecox

Geological Range

Collignoniceras praecox Zone: Middle Turonian to 92.46 ± 0.58

Paleogeographic Distribution

Nebraska to South Dakota

Stratigraphic Occurrences

Turonian
Carlile Shale (NE)
Carlile Shale (SD)
Carlile Shale (Turner Sandy Member) (SD)
Holotype of <i>Collignoniceras praecox</i> (USNM 318219). 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:/65665/3e6377fee-aa43-49cd-badf-23b1acc7c011).
Holotype of Collignoniceras praecox (USNM 318219). 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:/65665/3e6377fee-aa43-49cd-badf-23b1acc7c011).

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