Eugyriopsis
Beauvais 1976, p. 24
The assignation to Stylinidae by Beauvais 1976 is not more justified than the placement in Amphiastreidae by Ogilvie.
Type Species
Dendrogyra sinuosa Ogilvie, 1897, p.126, pl. 16 fig. 3-4; Original Designation
Type Specimen: Holotype; ÚÚG HF 120; Verified; Dry Preserved
Type Locality: Tithonian (Upper Jurassic)-Berriasian (Lower Cretaceous) from Štramberk (Czech Republic)
The holotype by monotypy is a specimen sawed in four pieces.
Description
Massive meandroid corallum with sinuous closed valleys. Tectiform collines. No ambulacrum, no peritheca, no valley septum. Some isolated corallites. Epitheca present or absent ? Radial elements confluent, subconfluent or non confluent over the collines. Septa compact, mostly free, thickened in the wall region and at the inner edge, straight or curved. No auriculae. Distal edge unknown, lateral faces nearly smooth. Microstructure unknown. Hexameral symmetry cannot be observed, bilateral symmetry marked by the elongation of valleys . Endotheca abundant of tabuloid dissepiments gently sloping in the valleys and climbing near the wall , no columella, septa can join in the center. Synapticulae absent, wall made with enlarged part of radial elements and dissepiments.
Remarks
The "Hauptseptum" and the columella described by Oglivie are not confirmed. One nominal species
Distribution
- Central Europe; Late Jurassic - Early Cretaceous
- Southern Europe; Late Jurassic
- East Asia; Late Jurassic
This page has been in preparation since 18-Aug-2009 17:41
This version was contributed by Bernard Lathuilière on 01-May-2012 17:22.
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
|