 | Triograptus Monsen, 1925 |
Selection of related publications
Ulst, R., Gailite, L., Yakovleva, V. 1982.
Ordovik Latvii.
Kaljo, D. 1974.
On graptolite zones of Tremadoc and Arenig of Pribaltic and Moscow syneclises. Graptolites of the USSR, pp. 31-36.
References based on distribution