Gastropoda - Fissurelloidea - Fissurellidae

Parent taxon: Emarginulidae according to G. C. Martin 1904

Sister taxa: Agariste, Clypidina, Diodorini, Emarginulini, Emersonia, Entomella, Fissurellideini, Loxotoma, Notomella, Retshitsella, Rimularia, Rimulopsis, Scutini, Tugali

Subtaxa: Fissuridea alticosta, Fissuridea marylandica, Fissuridea nassula

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Ecology: facultatively mobile epifaunal grazer