1. Andrianov VN (1985) Permskie i nekotorye kamennougolnye ammonoidei Severo-Vostoka Azii. Trudy Geologicheskogo Instituta (Novosibirsk), Izdatel’stvo Nauka Sibirskoye Otdeleniye 1985, p 180
2. Barrande J (1865) Céphalopodes. Systême Silurien du centre de la Bohême (I. Vol. II.). Praha, Paris
3. Becker RT (2000a) Palaeobiogeographic relationships and diversity of Upper Devonian ammonoids from Western Australia. Rec West Aust Mus Suppl 58:385–401
4. Becker RT (2000b) Taxonomy, evolutionary history and distribution of the middle to late Famennian Wocklumeriina (Ammonoidea, Clymeniida). Mitt Mus Naturkunde Berlin Geowiss R 3:27–75
5. Becker RT, House MR (1994) International Devonian goniatite zonation, Emsian to Givetian, with new records from Morocco. Cour Forschungsinst Senckenb 169:79–135