Capricornites 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
The name has been mis-spelt as Capriocornites in some tabulations.
References
Stepan Manda & Voitech Turek, 2009. Revision of the Pagian Rutoceratoidea Hyatt, 1884 (Nautiloidea, Oncocerida) from the Prague Basin. Bulletin of Geosciences 84(1), 127–148 (13 figures). Czech Geological Survey, Prague Barnhard Kummel, 1964. Nautiloidea-Nautilida. Treatise on Invertebrate Paleontology, Part K. Geological Society of America and University of Kansas Press.
J.J. Sepkoski 2002. List of Cephalopod genera.