†Semitubina Cossmann 1918 (snail)
Gastropoda - Euomphalina - Tubinidae
Full reference: M. Cossmann. 1918. Essais de Paléoconchologie comparée 11
Parent taxon: Tubinidae according to J. B. Knight et al. 1960
Sister taxa: Colubrella, Keration, Meandrella, Pseudotubina, Serpentubina, Tubina
Subtaxa: Semitubina sakoi, Semitubina spinosa, Semitubina yukonensis
Type: Tubina spinosa
Ecology: stationary epifaunal suspension feeder