Gastropoda - Murchisoniina - Lophospiridae

Alternative spellings: Cyclonema (Gyronema), Trochonema (Gyronema)

Full reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081

Parent taxon: Gyronematinae according to P. J. Wagner 2011

Sister taxa: Eunema, Tunstallia

Subtaxa: Gyronema pulchellum, Gyronema rotalineum, Gyronema semicarinatum

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Type: Gyronema pulchellum

Ecology: facultatively mobile epifaunal suspension feeder