1889
Pristiograptus frequens — Jaekel, pp. 669, fig. 28:1-2
1936
Monograptus contumax — Bouček, pp. 12-13, fig. 2:6-8
1943
Pristiograptus frequens Jaekel, 1889 — Pˇribyl, pp. 24-25, fig. 3:13
1952
Pristiograptus frequens — Münch, pp. 88, fig. 19:5
1967
Pristiograptus frequens Jaekel, 1889 — Gailite et al., pp. 246, fig. 29:9
1991
Monograptus dubius frequens (Jaekel, 1889) — Jaeger, pp. 314, fig. 25:9,11,15
2012
Pristiograptus dubius frequens Jaekel, 1889 — Urbanek et al., pp. 600, fig. 5M, 11A-C, F-H
2017
Pristiograptus frequens — Maletz & Schöning, fig. 4a,d