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. ENSV TA Geoloogia Instituudi uurimused , 1-87.
Nestor, H. E. 1962. A revision of the stromatoporoids described by F. Rosen in 1867. ENSV TA Geoloogia Instituudi uurimused IX, 3-23. ENSV Teaduste Akadeemia Geoloogia Instituudi Uurimused IX, pp. 3-23.