Gastropoda - Euomphalina - Platyceratidae
Alternative spellings: Craspedostoma (Ploconema), Ploconema
Full reference: J. Perner. 1903. Gastéropodes, Tome 1: Patellidae et Bellerophontidae 1-164
Parent taxon: Cyclonema according to J. B. Knight et al. 1960
Sister taxa: Cyclonema (Cyclonema), Cyclonema (Dyeria), Cyclonema aiens, Cyclonema ampullosum, Cyclonema ananas, Cyclonema apicatum, Cyclonema bellulum, Cyclonema bilix, Cyclonema boreale, Cyclonema canaliculata, Cyclonema cancellatum, Cyclonema cives, Cyclonema compar, Cyclonema composita, Cyclonema consepultum, Cyclonema convergens, Cyclonema crebristria, Cyclonema cushingi, Cyclonema daytonensis, Cyclonema decora, Cyclonema delicatula, Cyclonema derelictum, Cyclonema dowlingii, Cyclonema fasciata, Cyclonema filicinctus, Cyclonema formosum, Cyclonema gracile, Cyclonema guilleri, Cyclonema gyronemoides, Cyclonema hageri, Cyclonema hallianum, Cyclonema humerosum, Cyclonema inaequistriatum, Cyclonema inflatum, Cyclonema infrequens, Cyclonema inopinata, Cyclonema intermedium, Cyclonema karlsteinensis, Cyclonema laudabile, Cyclonema lepidula, Cyclonema leptonotum, Cyclonema limatum, Cyclonema lineatum, Cyclonema lydiamariarum, Cyclonema marylandense, Cyclonema mediale, Cyclonema minuta, Cyclonema modestum, Cyclonema montrealense, Cyclonema niagarensis, Cyclonema nodulosum, Cyclonema obsolescens, Cyclonema parvimedium, Cyclonema percarinata, Cyclonema percingulatum, Cyclonema praecipitum, Cyclonema rupestre, Cyclonema servus, Cyclonema simulans, Cyclonema statshiunaica, Cyclonema sublaeve, Cyclonema subundata, Cyclonema sulphuriferum, Cyclonema tenuissimum, Cyclonema textilis, Cyclonema thalia, Cyclonema timida, Cyclonema timidum, Cyclonema transversum, Cyclonema trepidans, Cyclonema varians, Cyclonema varicosum, Cyclonema varispirum, Cyclonema ventricosa
Subtaxa: Ploconema bohemicum, Ploconema protendens
Type: Ploconema protendens
Ecology: facultatively mobile epifaunal coprophage-deposit feeder