†Heteroptygmatis Shikama and Yui 1973 (snail)
PaleoDB taxon number: 12230
Parent taxon: Opisthobranchia according to J. J. Sepkoski 2002
Sister taxa: Acanthotrophia, Acochlidea, Anaspidea, Buscotypus, Canepina, Cephalaspida, Cephalaspidea, Cylindrobullinoidea, Floribella, Gymnosomata, Heterostrophia, Lutima, Mariottia, Mistostigma, Nicosiaella, Notaspidea, Nudibranchia, Pseudofusia, Reticulacella, Rhodopemorpha, Sacoglossa, Scorbinidola, Tectibranchia, Thecosomata, Umbraculomorpha
Subtaxa: none
Ecology: epifaunal