1908
Dimorphograptus extenuatus sp. nov. — Elles & Wood, pp. 358, fig. 35:10a-10e, text fig. 235
1974
Rhapidograptus estenuatus — Hutt, pp. 55, fig. 7:5,6,10; text fig. 13,14
2008
Dimorphograptus extenuatus Elles et Wood, 1908 — Šorch & Feist, pp. 953, fig. 7.3a; 7.3b; 7.4; 7.16; 7.17; 10.11; 11.9
2014
Dimorphograptus extenuatus — Maletz et al., pp. 177, fig. 1C