1887
Cyrtograptus radians — Törnquist, pp. 491, fig. 2
1933
Cyrtograptus radians — Bouček, pp. 58, fig. 4:7-8
1952
Cyrtograptus radians — Münch, pp. 140, fig. 54:1a-c
1967
Cyrtograptus radians — Koren et Ulst, pp. 261, fig. 32:2
1975
Cyrtograptus radians Tornquist — Berry et Murphy, pp. 88-89, fig. text f. 22e
1979
Cyrtograptus radians — Paškevičius, pp. 190-191, fig. 17:5; 33:4-5
2008
Cyrtograptus radians Törnquist, 1887 — Lenz & Melchin, pp. 454