1. Bigelow, H. B., &Schroeder, W. C. (1948): Sharks. - In: Fishes of the Western North Atlantic. - Mem. Sears. Found. Mar. Res., 1: Part I, Yale Univ.; New Haven.
2. Goto, M. (1975): New find of the Permian and Triassic fish fossils in Japan. On the dermal denticles and teeth of fishes from Karasawa area, southeast Asio Mountains. - Earth Sciences (Chikyo no Kagaku),29: 72–74; Tokyo. - [in Jap., with Engl. summ, and Engl. fig. expl]
3. Gross, W. (1938): Das Kopfskelett vonCladodus wildungensis Jaekel. 2. Teil: Der Kieferbogen. Anhang:Protacrodus vetustus Jaekel. - Senckenbergiana,20: 123–145; Frankfurt/M.
4. — (1973): Kleinschuppen, Flossenstacheln und Zähne von Fischen aus europäischen und nordamerikanischen Bonebeds des Devons. - Palaeontographica A,142: 51–155; Stuttgart.
5. Gunnell, F. H. (1933): Conodonts and fish remains from the Cherokee, Kansas City, and Wabaunsee groups of Missouri and Kansas.- J. Paleont.,7: 261–297; Menasha.