1899
Monograptus inopinus n. sp. — Törnquist, pp. 10, fig. 1:23-26
1998
Monograptus limatulus inopinus Törnquist, 1899 — Štroch, pp. 232, fig. 8:3, 5, Text fig. 7:3A-C
2003
"Monograptus" inopinus Törnquist — Loydell et al., pp. 209, fig. 4t
2009
"Monograptus" inopinus Törnquist, 1899 — Loydell et Maletz, pp. 284-286, fig. 6:4, 9
2014
Monograptus inopinus — Maletz et al., pp. 177-178, fig. 1O