Genus Trigoniocardia [Trigoniocardium] W. H. Dall, 1900

(3-5-4-0-4-2-3-25-0-0-0-0-0)
Ref. Abbott & Dance, 1982 p 329
Amer. Fish. Soc., 1988 p 40
Bernard, 1983 p 38
Keen, 1971 p 157
Lindner, 1977 p 110
Syn. Trigonocardia M. Cossmann, 1901
Ref. Abbott, 1974 p 484
Vokes, 1980 p 128