Bifoliate lyre like scale with edge GIUS 4−599 Psi./511/1 from the Late Frasnian, set F of Psie Górki; top and opposite side view.

Diagnoza

Porównanie

Spines with a very narrow and smooth main ridge, with thin, broad lateral laminae, andcovered by obliquely set ribs. Scales are either leaf− or lyre−shaped with a distinct and corrugated axis. Lateral lobes are densely crossed by thin slits, eight on each side. The margin is wavy and the basal part trumpet−shaped.

Autekologia

Występowanie geograficzne

Set F of Psie Górki, Kielce, Holy Cross Mountains, Poland.

Zasięg czasowy

Middle Frasnian

Materiały muzealne

GIUS 4−599 Psi./511/1 i GIUS 4−599 Psi./511/3

Literatura

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