1991
Drepanoistodus stougei n. sp. — Rasmussen, pp. 277-278, fig. 6F-J,N
2001
Drepanoistodus stougei Rasmussen, 1991 — Rasmussen, pp. 75, fig. 6:7-10,13
2018
Drepanoistodus stougei — Wu et al.
2021
Drepanoistodus stougei Rasmussen, 1991 — Rasmussen et al., pp. 126-127, fig. Fig. 6R–S