Martynov 1931. Mapthob, A, B. To the morphology and systema-tical position of the fam. Palaeon-tinidae Handl., with a description of a new form from Ust-Baley, Siberia. [In Russian with English summary.] Annuaire de la Societe Paleontologique de Russie, 9(130) 1931: 93-122