1936
Monograptus dubius (Suess) ludlovensis — Bouček, pp. 6, fig. 1:8-10
1942
Pristiograptus dubius ludlovensis — Münch, pp. 247, fig. 1:5-6
1943
Pristiograptus dubius ludlovensis — Přibyl, pp. 6
1948
Pristiograptus (Pristiograptus) dubius ludlovensis — Přibyl, pp. 69
1952
Pristiograptus dubius ludlovensis — Münch, pp. 85, fig. 18:3
1960
Monograptus forbesi — Berry, pp. 1162, fig. 1:2B
1964
Monograptus forbesi — Berry, pp. 593-594, fig. 2 I-J
1965
Pristiograptus ludlovensis (Bouček), 1936 — Obut et al., pp. 69-70, fig. 12:1-11
1968
Pristiograptus ludlowensis (Bouček), 1936 — Krandijevsky, pp. 42-43, fig. 8:8-10
1974
Pristiograptus ludlowensis (Bouček), 1936 — Ulst, pp. 110-111, fig. 13:3-4a-b; 11:3
1975
Pristiograptus ludlovensis — Obut & Sobolevskaya, pp. 168, fig. 89:1,2
1977
Pristiograptus ludlovensis — Obut & Sennikov, pp. 129, fig. IV 2,3
1988
Pristiograptus ludlowensis (Bouček, 1936) — Obut et al., pp. 117
2000
Pristiograptus dubius ludlovensis (Bouček, 1936) — Radzevičius & Paškevičius, pp. 94, fig. VI B