Gastropoda - Murchisoniina - Lophospiridae

Alternative combinations: Gonionema bicarinatus, Nematotrochus bicarinatus, Pseudeunema bicarinatus, Turbinites bicarinatus

Synonyms: Gonionema angulosum Koken 1897, Gonionema gradatum Koken 1897, Gonionema reticulata Koken 1897, Proturritella gradata Koken 1897, Proturritella reticulata Koken 1897

Full reference: G. Wahlenberg. 1821. Petrificata telluris svecanae examinata. Acta Soceitatis Regiae Scientarium

Belongs to Proturritella according to P. J. Wagner 2011

Sister taxa: Proturritella cingulata, Proturritella cyclophora, Proturritella gracilis, Proturritella historicum, Proturritella microclathrata