Psiloceratidae is an extinct family of cephalopods belonging to the ammonite subclass.
Description The Psiloceratidae are evolute, smooth or with blunt primary ribbing. The venter is rounded and generally smooth, in some feebly keeled. Sutures are simple with phylloid saddle endings in some. The aptychus is single, found in sutu in Psiloceras
Genera
Badouxia Guex and Taylor, 1976 Caloceras Discamphiceras Euphyllites Wahner, 1898 Franziceras Buckman, 1923 Kammerkaroceras Laqueoceras Murihikuites Stevens, 2004 Paradiscamphiceras Taylor, 1988 Paraphylloceras Salfeld, 1919 Psiloceras Psilophyllites
Distribution Fossils of species within this genus have been found in the Triassic rocks of Canada, in the Jurassic rocks of Argentina, Austria, Canada, China, France, Germany, Hungary, Mexico, New Zealand, Spain), United Kingdom, United States, as well as in the Cretaceous of Australia and Russia.
References
Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.