Neptunea (Trophonopsis) (snail)
Alternative spellings: Trophon (Trophonopsis), Trophonopsis
Parent taxon: Neptunea according to Dall 1919
See also Chiesa et al. 1995, Hickman 1980 and Sepkoski 2002
Sister taxa: Neptunea (Neptunea), Neptunea (Sulcosipho), Neptunea alaquaensis, Neptunea cretacea, Neptunea despecta, Neptunea diminuta, Neptunea gracilis, Neptunea humboldtiana, Neptunea ithia, Neptunea lyrata, Neptunea modestoidea, Neptunea stonei
Subtaxa: Trophonopsis platacantha
Ecology: epifaunal
Distribution: