Holotype marginal plate GIUS 4−610 Szg./594/1 from the Mid Frasnian of Szczukowskie Górki; dorsal, ventral, distal and lateral view.

Diagnoza

Crest forms a broad lateral expansion, greatly extending the outline of the marginal plate.No undercut channel. Lateral surfaces lack any traces of articulation contact.

Porównanie

The large distance between the marginals and the unique type of lateral contact between marginals. Ventral disc structure indicates strong links to Platycycloides. The structure of isolated skeletal elements suggest that the whole skeleton was very open in construction.

Autekologia

Występowanie geograficzne

Only known from the type locality. 

Zasięg czasowy

Middle Frasnian, early Palmatolepis hassi to early Palmatolepis rhenana Zones.

Materiały muzealne

Holotype: GIUS 4−610 Szg./594/1 and 4 specimens.

Literatura

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