This fossil appears to be a Straparollus planispira (Cumings, 1906) gastropod fossil. It was found by Lucien Beckner (1872-1963) in 1928 in Breck County Kentucky, USA. The fossil dates to the Mississippian Period.
Source:
https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=73633&is_real_user=0
