Graptolithina

Acanthograptus impar Bulman et Rickards, 1966

Synonymy list
1966     Acanthograptus impar sp. nov. — Bulman et Rickards, pp. 32-36, fig. 23-25
Selection of related publications
Bulman, O. M. B., Rickards, R. B. 1966. A Revision of Wiman's Dendroid and Tuboid Graptolites. Bulletin of Geological Institutions of the University of Uppsala 43, 6-8, 1-72.
References based on distribution