Two cretaceous nautiloids from Baja California, Mexico, and southern California by Frederick A. Sundberg. Bull. Southern California Acad. Sci., 83(1):43-52, 1984. Two genera of nautiloids not previously reported from the Western Hemisphere are present in the Cretaceous of Baja California, Mexico, and southern California. Eucymatoceras sp. is from the Alisitos Formation (Aptian-Albian) near Arroyo El Rosario. Anglonautilus catarinae n. sp. is from the Rosario Group (Maastrichtian) of Santa Catarina Landing, Baja California, and Carlsbad, California, and the Williams Formation (late Campanian to early Maastrichtian) of the Santa Ana Mountains, California.