Echinodermata

Asperellacystis Stukalina et Hints, 1987

Selection of related publications
Stukalina, G., Hints, L. 1987. Columnals of echinoderms with condylial articulation ( the Ordovician of the Baltic area). Proceedings of the Academy of Sciences of the Estonian SSR. Geology 36, 3, 104-112.