Authors Year Title
Chang 1958a Stratigraphy, palaeontology and palaeogeography of the ammonite fauna of the Clymeneenkalk from Great Khingan with special reference to the post Devonian break (hiatus) of South China. [Chin.,Engl.]
Acta Palaeontologica Sinica, 6 (1): 71-89, 4 figs.
Chang 1958b The discovery of the Clymenia faunas from Great Khingan and their stratigraphical significance. [In Chinese and English.]
Science Record, new series,vol.2 (9): 320-322, Peking (Science Press).
Wedekind 1908 Die Cephalopodenfauna des höheren Oberdevon am Enkeberge.
Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, Beilage-Band 26: 565-633, fig.1,2, pl.39-45; Stuttgart.
Wedekind 1918 Die Genera der Palaeoammonoidea (Goniatiten). (Mit Ausschluß der Mimoceratidae, Glyphioceratidae und Prolecanitidae).
Palaeontographica, 62: 85-184, fig.1-54, pl.14-22; Stuttgart.