ammonites
†family Helicotomidae Wenz 1938 (snail)

Gastropoda - Euomphalina - Helicotomidae

Alternative spelling: Helicotominae

Full reference: W. Wenz. 1938. Handbuch der Paläozoologie; Gastropoda. Handbuch der Paläozoologie

Parent taxon: Euomphaloidea according to P. Bouchet et al. 2005

Sister taxa: Anomphalidae, Elasmonematidae, Euomphalidae, Holopeidae, Kitikamispira, Lesueurillidae, Microdomatidae, Nettersheimia, Omphalocirridae, Omphalocirrinae, Omphalotrochidae, Ornollus, Pseudophoridae, Raphistomatidae, Rhenomphalus, Serpulospira, Tychobraheidae

Subtaxa: Amphelissa, Boucotspira, Boucotspira, Burdikinia, Helicotoma, Lophonema, Ophiletina, Palaeomphalus, Paraviviana, Walcottoma, Yochelsoniella

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Ecology: stationary epifaunal suspension feeder