Gatunek typowy
Deliella deliae Halamski, 2004; Mid Devonian, Late Eifelian; Skały, Poland

Opis

Small, dorsal valve subconical with beak posteriorly subcentral; anterior face convex and posterior subplanar; ornament of fine costae, branching costellae, and capillae; fine concentric growth lines forming a netlike granular pattern at intersection with radial ornament; encrusting; ventral valve not known.

Synonimy

Zasięg czasowy

Early Devonian (Emsian) to Mid Devonian (Givetian) of Poland, Germany, Ukraine, Morocco and North America.

Literatura