Graptolithina

Paratetragraptus approximatus (Nicholson, 1873)

Synonymy list
1873     Tetragraptus approximatus — Nicholson, pp. 136, fig. 2
1904     Tetragraptus approximatus — Törnquist, pp. 6, fig. 1:11-12
1920     Tetragraptus approximatus — Keble, pp. 195, fig. 33:1a-c
2017     Paratetragraptus approximatus (Nicholson, 1873) — VandenBerg, pp. 43, fig. F. 2-3
References based on distribution