Holotype of Baculites asperformis (USNM 178a). 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:/65665/38d1a0018-c7b1-4afd-b0da-ce1eabefe2ab).Baculites asperformis from the Greenhorn Formation of Smith County, Kansas (FHSMIP 531).