Submitted by: Pat Rutkowski
Taxon: Mooreoceras sp. aff. M. cliftonense
Submit date: 2008-11-24
Location (approximate): , Calhoun, MI
Stratigraphy: Marshall Formation
Age: Osagian (Early Mississippian)
Submitter notes: Three nautiloids, the largest measuring 110mm x 31mm and the smallest at 51mm x 41mm.