Gastropoda - Euomphalina - Planitrochidae
Parent taxon: Euomphaloidea according to P. J. Wagner 2023
See also Bouchet et al. 2005, Golikov and Starobogatov 1975, Knight et al. 1960 and Ponder and Warén 1988
Sister taxa: Anomphalidae, Elasmonematidae, Euomphalidae, Helicotomidae, Holopeidae, Kitikamispira, Lesueurillidae, Microdomatidae, Neoplatyteichum, Nettersheimia, Omphalocirridae, Omphalocirrinae, Omphalotrochidae, Ornollus, Pseudophoridae, Pycnomphalidae, Rhenomphalus, Serpulospira, Tychobraheidae
Subtaxa: Horologium Nematrochus Perneritrochus Planitrochus Trochomphalus
Type: Planitrochus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Morocco (1 collection), the Russian Federation (2), United States (1: Alaska)
• Silurian of the Czech Republic (1)
• Ordovician of Estonia (3), United States (2: Alaska)
Total: 10 collections each including a single occurrence