1976
Dulebograptus trimorphus n. sp. — Tsegelnjuk, pp. 100, fig. 32:1
1978
Dulebograptus trimorphus Tsegelnjuk — Tsegelnjuk, pp. 90, fig. 2:1,6; 3:1,3,5
1988
Dulebograptus trimorphus Tsegelnjuk — Tsegelnjuk, pp. 85, fig. 2:6,7
1997
Monograptus (Dulebograptus) trimorphus Tsegelnjuk, 1976 — Urbanek, pp. 154, fig. 14, fig.42