Bivalvia - Arcida - Arcidae

PaleoDB taxon number: 16320

Parent taxon: Striarcinae according to H. E. Vokes 1980

Sister taxa: Breviarca, Ovalarca, Sanoarca, Striarca

Subtaxa: Trigonodesma (Scapularca), Trigonodesma buxellensis, Trigonodesma lissa

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Ecology: facultatively mobile epifaunal suspension feeder