Diagnoza

Flat, spindle-shaped plates, with perforate eyes at opposite ends of the spindle, where it narrows; a thin, perforate, protruding lamella occurs in its middle part.

Porównanie

The shape of sclerites is similar to that in Binoculites. The difference is that they have perforate oculi, like Achistrum (Porachistrum) multiperforatum. Similar, imperforate ruffs are known from the plates of Devonothyonites.

Autekologia

Występowanie geograficzne

Set B of Laskowa Góra and trench II at Marzysz, Holy Cross Mountains, Poland.

Zasięg czasowy

Mid to Late Givetian

Materiały muzealne

Holotype GIUS 4−584 Mrz./221/1 and 33 sclerites.

Literatura

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