The holotype, ambulacral plate GIUS 4−779 Zba./368/2 from the middle part of the arm; earliest Eifelian Chimaerothyris dombrowiensis horizon of Zbrza, Holy Cross Mountains; outer and inner view

Ambulacral plate GIUS 4−792Grz./817/1 from the middle part of the arm, outer (lateral) view. Late Emsian, set V of Grzegorzowice.

Diagnoza

Podial basin on the ambulacral plate poorly delimited. Lateral plates with a large posterio-internal bulge, well demarcated along almost all of its periphery by a groove

Porównanie

Differs from Weigeltura austera Boczarowski, 2001 by the lack of a ridge surrounding thepodial basin, lack the convexities developed behind the lateral muscular fossa on the ambulacral plates.

Autekologia

Występowanie geograficzne

Set V of the Grzegorzowice Beds at Grzegorzowice and brachiopod Chimaerothyris dombrowiensis Zone of Zbrza, Holy Cross Mountains, Poland.

Zasięg czasowy

Late  Emsian and Early  Eifelian (Polygnathus partitus Zone)

Materiały muzealne

Holotyp GIUS 4−779 Zba./368/2 and 443 specimens.

Literatura

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