ammonites
Stuertzaster utroquecognitus Boczarowski 2001

Eopentaroida - Rhopalocomidae

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

Belongs to Stuertzaster according to A. Boczarowski 2001

Sister taxa: Stuertzaster liquidus, Stuertzaster marstoni, Sturtzaster colvini, Sturtzaster cygnipes, Sturtzaster mitchelli, Sturtzaster spinosissimus

Type specimen: Holotype: GIUS 4−584 Mrz./190/1

Ecology: epifaunal carnivore