Genus Cardiocardita H. E. Anton, 1838
(3-4-4-0-5-1-1-10-0-0-0-0-0) Ref. Vokes, 1980 p 118 Syn. Agaria J. E. Gray, 1840; Azaria G. W. Tryon, 1872; Cardiocardites H. M. D. de Blainville, 1825; Divergidens Eames, 1957 Ref. Vaught, 1989 p 128