Takxonomic significance of apical system in the Clypeaster echinoids

Mitrović-Petrović, Jovanka (1995)
(clypeaster, Badenien, monobazaltni apeks, madreporit, gonopore)

Traces of epibiosis, predacity and parasitism on Clypeaster (Echinoidea) skeletons

Dimić, Marina (1998)
(clypeaster, epibioza, biotičke povrede, parazitizam, srednji miocen, Bosna, Srbija)