Rhacophyllites is an extinct genus of cephalopods belonging to the family Discophyllitidae.Treatise on Invertebrate Paleontology Part L Mollusca 4, Ammonoidea, 1957 These nektonic carnivores lived during the Triassic period, from Carnian to Rhaetian age.Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda

Species Rhacophyllites debilis Hauer, 1846 Rhacophyllites kavasensis Kovacs, 1942

Description Rhacophyllites can reach a maximum diameter of about .Incredible Science They have a discoidal, generally evolute shell. The first lateral saddle of the suture is diphyllic and adjacent lateral saddles are diphyllic or triphillic.J. Perrin Smith THE UPPER TRIASSIC MARINE INVERTEBRATE FAUNAS OF NORTH AMERICA, pg. 100

References

Siemon Wm. Muller Genotype of the Ammonite Genus Rhacophyllites Journal of Paleontology Vol. 13, No. 5 (Sep., 1939), pp. 533–537