1877
Orthoceras verticillatum v. Hagenow — Krause, pp. 24-25
1880
Cycloceras hisingeri Boll — Schröder, pp. 62
1884
Ctenoceras schmidti sp. nov. — Noetling, pp. 116-122, fig. 16:7,8; 18:3-5a
1931
Ctenoceras schmidti Noetling — Troedsson, pp. 16
1962
Ctenoceras schmidti Noetling — Balashov & Zhuravleva, fig. 11:8
1964
Ctenoceras schmidti Noetling — Sweet, pp. 255, fig. 155:1a-c
1971
Ctenoceras schmidti Noetling — Neben & Krüger, pp. 17, fig. 14-15
1973
Ctenoceras schmidti Noetling — Neben & Krüger, pp. 81, fig. 14-17
1984
Ctenoceras schmidti Noetling — Dzik, pp. 97, 105, fig. 39, 66
2004
Ctenoceras schmidti Noetling, 1884 — Kröger, pp. 63, fig. 11A
2006
Ctenoceras schmidti Noetling, 1884 — Kröger & Isakar, pp. 145, fig. 7A-J, 8F