The Echinoid Directory
Bothriocidaris globulus Eichwald, 1869; Caradocian, Upper Ordovician, Estonia. Lateral view; from Mannil, R. 1962. [The morphology and taxonomy of Bothriocidaris (Echinoidea)]. Ensv Teaduste Akadeemia Geologia Instituudi Uurimused 9, 143-190 [in Russian with English summary].
Diameter of test not stated.