This picture is of a Spinocrioceras polyspinosum (Kemper, 1973) [ Crioceratites sp. ] fossil. It was found at Ville de Leyva (Leiva) Columb...

  Here is a fossil found near the end of 2022 in Carwood Formation of Floyd County, Indiana USA. The fossil dates to the Mississippian Perio...

  Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 51268 Specimen GUID: http://n2t.net/ark:/65665/ 3cffa9b15...