Gastropoda - Fissurelloidea - Fissurellidae

Alternative spelling: Arginula

Parent taxon: Emarginula according to J. B. Knight et al. 1960

Sister taxa: Emarginula (Altomarginula), Emarginula (Emarginula), Emarginula (Semperia), Emarginula (Subzeidora), Emarginula (Tauschia), Emarginula abnormis, Emarginula conformis, Emarginula conica, Emarginula crassa, Emarginula fissura, Emarginula incisura, Emarginula kitteli, Emarginula mareana, Emarginula marylandica, Emarginula muensteri, Emarginula multiradiata, Emarginula punctura, Emarginula rosea, Emarginula squammata, Emarginula tropica, Emarginula variegata

Subtaxa: none

Ecology: facultatively mobile epifaunal grazer-carnivore