Eugyroidea d’Achiardi, 1875

Löser, Hannes, Werner, Winfried & Darga, Robert, 2023, Middle Cenomanian coral fauna from the Roßsteinalmen (Northern Calcareous Alps, Bavaria, Southern Germany) – a revised and extended version, Zitteliana 97, pp. 89-147 : 89-147

Superfamily Eugyroidea d’Achiardi, 1875

Description.

Colonial (cerioid, flabelloid, hydnophoroid, meandroid, phaceloid, plocoid) corals. Septa compact. Septal symmetry regular and in various systems, in size orders or irregular. Septa poorly ornamented. Septal microstructure of small trabeculae. Lonsdaleoid septa only in the Felixigyrids; main septa absent. Synapticulae and pali absent. Columella rare. Endotheca well-developed, generally as dense, thick and regular tabulae. Marginarium absent. Wall compact and tabulothecal or septothecal by thickening of septa. Coenosteum and budding varies.