Authors Year Title
Shkolin 2001 Glava 5, Ammonoidei. Glava 12,  Ammonoidei.
In: Alekseev,A.S & Shik,S.M.,eds.,Srednii karbon Moskovskoi sineklizy (iuzhnaia chast'). Tom 2. Paleontologicheskaia kharakteristika,77-79,172-188,18 fig.,pl.35-36.