1820
Orthoceratites falcatus — Schlotheim, pp. 58, fig. 8:2
1840
Cyrtoceras falcatum Schlith. — Eichwald, pp. 108
1854
Cyrtoceras falcatum — Eichwald, pp. 371, fig. 29:a
1880
Aegoceras falcatum — Remele, pp. 244
1891
Planctoceras falcatum — Schröder, pp. 41, fig. 6:2
1926
Planctoceras falcatum — Patrunky, pp. 126
1953
Planctoceras falcatum (Schlotheim, 1820) — Balashov, pp. 226
1984
Tragoceras falcatum (Schlotheim, 1820) — Dzik, pp. 37
2002
Planctoceras falcatum — Mutvei, pp. 383
2011
Tragoceras falcatus (Schlotheim) — Mutvei & Dunca, fig. 2:C-D
2014
Tragoceras falcatum (Schlotheim, 1820) — King, fig. Fig. 3A-C