Porifera

Densastroma Flügel, 1959

Selection of related publications
Mõtus, M.-A. & Hints, O. (eds) 2007. 10th International Symposium on Fossil Cnidaria and Porifera. Excursion B2: Lower Paleozoic geology and corals of Estonia. Excursion Guidebook.
Nestor, H., Einasto, R., Nestor, V., Märss, T. & Viira, V. 2001. Description of the type section, cyclicity, and correlation of the Riksu Formation (Wenlock, Estonia). Proceedings of the Estonian Academy of Sciences. Geology 50, 3, 149-173.
Nestor, H. E. 1966. Wenlockian and Ludlovian Stromatoporoidea of Estonia. Trudy Instituta geologii AN ESSR , 1-87.
Nestor, H. E. 1962. A revision of the stromatoporoids described by F. Rosen in 1867. Trudy Instituta geologii AN ESSR 9, 3-23. ENSV Teaduste Akadeemia Geoloogia Instituudi Uurimused IX, pp. 3-23.