†Isonema Meek and Worthen 1866 (snail)
PaleoDB taxon number: 8884
Alternative spelling: Naticopsis (Isonema)
Full reference: F. B. Meek and A. H. Worthen. 1866. Descriptions of invertebrates from the Carboniferous System, Illinois. Geological Survey of Illinois 2:145-411
Parent taxon: Anomphalidae according to J. B. Knight et al. 1960
Sister taxa: Anomphalus, Cycloscena, Delphinuella, Eiselia, Givediscus, Littorella, Nodinella, Pycnomphalinae, Sosiolytes, Straparella, Turbinilopsis, Tychonia
Subtaxa: Isonema depressum, Isonema linearis, Isonema verae
Ecology: epifaunal grazer