Strophomenata - Productida - Monticuliferidae

Alternative combinations: Cancrinella curvata, Productus curvatus, Stepanoviella curvata

Synonym: Stepanoviella tenuissimostriata Zavodovsky 1960

Belongs to Cancrinelloides according to B.C. Abramov and A.D. Grigorieva 1988

Sister taxa: Cancrinelloides licharewi, Cancrinelloides minimus, Cancrinelloides obrutschewi, Cancrinelloides tyungnensis, Cancrinelloides yuregensis

Average measurements (in mm): shell 25.0 x 28.0, valve 22.7 x 29.8