Graptolithina
Subspecies

Rhabdinopora flabelliformis multithecatum (Bulman, 1954)

Selection of related publications
Suyarkova, A. A., Koren', T. N. 2009. Advances in the Ordovician graptolite biostratigraphy of the St Petersburg area, Russia. Estonian Journal of Earth Sciences 58, 1, 3-9. DOI:10.313176/earth.2009.1.01
Heinsalu, H., Kaljo, D., Kurvits, T., Viira, V. 2003. The stratotype of the Orasoja Member (Tremadocian, Northeast Estonia): lithology, mineralogy, and biostratigraphy. Proceedings of the Estonian Academy of Sciences. Geology 52, 3, 135-154. DOI:10.3176/geol.2003.3.02
Bulman, O. M. B. 1954. The graptolite fauna of the Dictyonema Shales of the Oslo region. Norsk Geologisk Tidsskrift 33, 1-40.
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References based on distribution