Superfamily Trigoniacea Lamarck 1819 (clam)

Bivalvia - Trigoniida

Parent taxon: Trigoniina according to E. Pérez et al. 2008

See also Amler 2010, Bieler and Mikkelsen 2006, Bouchet et al. 2010, Carter et al. 2011, Giribet and Wheeler 2002, Leanza and Casadío 1991, Nevesskaja 2009, Newell 1965 and Vokes 1980

Sister taxa: none

Subtaxa: Anopisthodon Aulacopleurum

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Ecology: facultatively mobile infaunal suspension feeder

Distribution:

• Triassic of United States (9: Idaho, Montana, Utah collections)

Total: 9 collections each including a single occurrence

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