Lebanidze, 1987, p. 589
Etalloniopsis georgica Lebanidze, 1987, p. 591, fig. 1-2; Original Designation
Type Specimen: Holotype; GNM 2/99; Not Traced; Unknown
Type Locality: Upper Oxfordian conglomerate (Upper Jurassic) from Tepe-bash (Georgia)
Massive thamnasterioid colony. Intracalicular increase. Radial elements are compact, curved, anastomosed biseptal sheets. Porous incomplete synapticulothecal wall. Septal ornamentation and microstructure unknown. Radial and bilateral symmetry marked by the curvature of septa. Endotheca absent. Styliform columella.
The genus was compared by Lebanidze to Etallonia (now Etallonasteria) to Paretallonia, Thamnoseris and Kobyastraea, all genera in which an endotheca is present.
One nominal species. The genus needs a new observation. The question of the diagenetic origin of the absence of endotheca is open. A comparison with Thamnasteria is needed.
- Eastern Europe; Late Jurassic
This page has been in preparation since 18-Aug-2009 17:40
This version was contributed by Bernard Lathuilière on 08-Jan-2011 10:57.
Page authors are: Bernard Lathuilière. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Bernard Lathuilière