Obolus Eichwald, 1829

Selection of related publications
Lang, L. 2015. Baculate shell structure in Early Palaeozoic linguliform brachiopods. doktoritöö, pp. 1-113.
Lang, L., Uibopuu, E., Puura, I. 2011. Nanostructures in Palaeozoic linguloid brachiopods. Memoirs of the Association of Australasian Palaeontologists 41, 359−366.
Popov, L. E., Bassett, M. G., Holmer, L. E. 2003. Understanding linguloid brachiopods: Obolus and Ungula as examples. Carnets de Géologie , 6, 1-13.
Puura, I. 1996. Lingulate brachiopods and biostratigraphy of the Cambrian-Ordovician boundary beds in Baltoscandia. Doctoral Thesis, pp. 1-214.
Popov, L. E., Khazanovitch, K. K., Borovko, N. G., Sergejeva, S. P., Sobolevskaya, R. F. 1989. The key sections and stratigraphy of the Cambrian-Ordovician phosphate-bearing Obolus beds on the north-east Russian Platform. Опорные разрезы и стратиграфия, pp. 1-222.
Kaljo, D., Borovko, N., Heinsalu, H. Khazanovich, K., Mens, K., Popov, L., Sergejeva, S., Sobolevskaya, R., Viira, V. 1986. The Cambrian-Ordovician boundary in the Baltic-Ladoga clint area (North Estonia and Leningrad Region, USSR). Proceedings of the Academy of Sciences of the Estonian SSR. Geology 35, 3, 97-108.