1851
Rastrites triangulatus — Harkness, pp. 38, fig. 1:3a-d
1852
Monograptus triangulatus — Geinitz, pp. 47, fig. 5:4-8
1876
Monograptus triangulatus — Lapworth, pp. 359, fig. 13:5a-b
1899
Monograptus triangulatus — Törnquist, pp. 19, fig. 3:25-28; 4:1-2
1912
Demirastrites triangulatus — Eisel, pp. 38, fig. 3:6-15
1913
Monograptus triangulatus (Harkness) — Elles & Wood, pp. 471-472, fig. 47:4a-f
1919
Demirastrites triangulatus — Kirste, pp. 153, fig. 3:51
1920
Monograptus raitzhainiensis (Eisel) — Gortani, fig. 3:25-27
1920
Monograptus triangulatus var. cirratus — Gortani, fig. 3:22-24
1939
Monograptus triangulatus — Hundt, pp. 79, fig. 10, 10,180
1941
Demirastrites triangulatus triangulatus — Přibyl & Münch, pp. 4, fig. 1:1-5
1952
Demirastrites triangulatus — Münch, pp. 127, fig. 42:1
1964
Demirastrites triangulatus — Obut, fig. 9:5
1965
Demirastrites triangulatus — Obut & Sobolevskaya, pp. 86, fig. XVII 1-3
1965
Demirastrites triangulatus (Harkness), 1851 — Obut et al., pp. 86-88, fig. 17:1-3
1968
Demirastrites triangulatus — Obut & Sobolevskaya, pp. 106, fig. XXVII 3-5; XXVII 1-5; XXX 1-3
1976
Demirastrites triangulatus triangulatus — Sennikov, pp. 208, fig. 15:1-2
1979
Demirastrites triangulatus — Paškevičius, pp. 183, fig. XVI 1-4; XXX 5-8
1980
Demirastrites triangulatus (Harkness, 1851) — Obut & Sennikov, pp. 43, fig. 5:12
1988
Demirastrites triangulatus triangulatus (Harkness, 1851) — Obut et al., pp. 70, fig. VII 1
1993
Demirastrites triangulatus triangulatus (Harkness) — Štorch & Serpagli, pp. 51, fig. 16A-B
2003
"Demirastrites" triangulatus (Harkness) — Loydell et al., pp. 209, fig. 4h
2009
Demirastrites triangulatus (Harkness) — Storch & Kraft, pp. 63, fig. 8B
2010
Demirastrites triangulatus (Harkness), 1851 — Piras & Simonetto, pp. 16, fig. 2.a; 3.1-3; 5.2
2010
Demirastrites triangulatus (Harkness) — Loydell et al., pp. 254-255, fig. 2hh
2019
Demirastrites triangulatus (Harkness), 1851 — Štorch & Melchin, pp. 527, fig. s 9A–X; 10A–I; 11