Capriocornites

Capriocornites is a genus of rutoceratids (Nautiloidea - Cephalopoda) from the Devonian, related to such genera as "Rutoceras" and "Goldringia".
In some taxonomies (Manda & Turek, 2009) the Rutoceratidae are included in the Oncocerida rather than in the Nautilida