Oxfordian-Kimmeridgian (Jurassic) dinoflagellate cysts from the Chiricahua Mountains, Arizona
Olmstead, G.A., Cornell, W.C., and Waanders, G.L., 1996, Oxfordian-Kimmeridgian (Jurassic) dinoflagellate cysts from the Chiricahua Mountains, Arizona: Palynology, v. 20, p. 221-230.