Authors Year Title
Ruzhencev 1939b A new genus Parashumardites among Upper Carboniferous ammonites of North America.
Comptes Rendus (Doklady) de l'Academie des Sciences de l'URSS, 23 (8): 850-852, 2 fig.
Ruzhencev 1949 Sistematika i evolyutsia semeystv Pronoritidae Frech i Medlicottiidae Karpinsky.
Trudy Palentologicheskogo Instituta Akademiya Nauk SSSR, 19: 1-206, fig.1-88, pl.1-17; Moskva.
Ruzhencev 1950 Verkhnekamennougol'nye ammonity Urala.
Trudy Paleont. Inst., Akad. Nauk SSSR, 29: 1-220, fig.1-84, pl.1-15; Moskva.