Echinodermata

Caryocystites laevis Hecker, 1923

Selection of related publications
Hecker, R. F. 1923. Echinosphaeritidae of the Silurian of Russia. Trav. Mus. Géol. Min. Pierre le Grand Acad. Sci. Russie IV, 1, 1-63.
References based on distribution