Holotype: GIUS 4−584 Mrz./190/1

Diagnoza

Lateral plates with up to eight weakly developed mamelons on the narrow outer lateral surface. On the ventral side the laterals do not flatten laterally towards the arm axis and maintain an uniform width. Vertical processes of the anchor-like spicules of the central disc are short – up to half of their height.

Porównanie

It differs from Stuertzaster liquidus Boczarowski, 2001 by the less elongated lateral plates, spicules with short processes, the high ventral groove and asymmetrically enlarged ventral area of its ambulacral plates.

Autekologia

Występowanie geograficzne

Trench II at Marzysz and Set B of Posłowice in Holy Cross Mountains, Poland. 

Zasięg czasowy

Middle Devonian, Late Givetian, Early Mesotaxis falsiovalis Zone

Materiały muzealne

Holotype: GIUS 4−584 Mrz./190/1 and ca. 750 specimens from same localizations and horizon; additional material from Posłowice, Poland

Literatura

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