Genus

Clonograptus Hall et Nicholson, 1873

Aiheeseen liittyvät julkaisut
Bergström, S. M., Löfgren, A., Maletz, J. 2004. The GSSP of the Second (Upper) Stage of the Lower Ordovician Series: Diabasbrottet at Hunneberg, Province of Västergötland, Southwestern Sweden. Episodes 27, 4, 265-272.
Ulst, R., Gailite, L., Yakovleva, V. 1982. Ordovik Latvii. pp. 1-294. Zinatne.
Kaljo, D. L., Kivimägi, E. K. 1976. Zonal stratigraphy of the Estonian Tremadocian. Graptolites and Stratigraphy, pp. 53-63. Academy of Sciences of Estonian SSR. Institut of Geology.
Kaljo, D. 1974. On graptolite zones of Tremadoc and Arenig of Pribaltic and Moscow syneclises. Graptolites of the USSR, pp. 31-36. Nauka.
Obut, A. M. 1957. Kassifikaciâ i ukazatel' rodov graptolitov. Ežegodnik Vsesoûznogo Paleontologičeskogo Obŝestva XVI, 11-47. Gosudarstvennoe Nauchno-tehnicheskoe Izdatel'stvao Literatury po Geologi i Ohrane Hedr.