Holotype marginal ossicle GIUS 4−584 Mrz./441/1 from the Late Givetian of Marzysz II/13; ventral, lateral, dorsal, distal and proximal view

Diagnoza

Very flat marginals of simplified structure. Crest smooth and blade−like.

Porównanie

Were it not for the size of individual elements and the postulated evolutionary trends of the group, one might suppose the material represents the juvenile elements of some cyclocystoid.

Autekologia

Występowanie geograficzne

Only known from the type locality.

Zasięg czasowy

Late Givetian, early Mesotaxis falsiovalis Zone.

Materiały muzealne

Holotype: GIUS 4−584 Mrz./441/1 and 4 specimens.

Literatura

Boczarowski, A. 2001. Isolated sclerites of Devonian non-pelmatozoan echinoderms. Palaeontologia Polonica 59: 3-220.