Synonymy list
1891 Didymograptus gracilis — Törnquist , pp. 17 , fig. 1:9-12
1895 Didymograptus gracilis — Törnquist , fig. 1:7-8
1895 Didymograptus gracilis — Elles , pp. 506
1901 Didymograptus gracilis — Elles et Wood , pp. 24 , fig. 2:2
1902 Didymograptus gracilis — Ruedemann , pp. 589 , fig. 17
1915 Didymograptus gracilis — Bassler , pp. 432
1937 Didymograptus gracilis — Monsen , pp. 123 , fig. 2:70
1947 Didymograptus gracilis Törnquist — Ruedemann , pp. 334 , fig. 57:1-6
Classification