Ogilvie, 1897, p. 130
Acanthogyra columnaris Ogilvie, 1897, p.131; Subsequent Designation Wells 1936
Type Specimen: Lectotype; BSPG As.III.75; Verified; Dry Preserved
Type Locality: Tithonian (Upper Jurassic)-Berriasian (Lower Cretaceous) from Stramberk (Czech Republic)
abusive designation of holotype by Geyer 1955 the lectotype is a partly polished specimen with 3 thin sections
Massive colonial corallum, cerioid. Intracalicular septal increase (or budding), irregularly polygonal corallites. Radial elements compact flexuous septa s.s. Inner edges of septa, enlarged by teeth, are either free or fused to the columella. Lateral faces with granules. Bilateral symmetry of septal apparatus marked by a septum longer than others. Some lonsdaleoid septa. The wall is a thick compact septotheca of the same nature as the radial elements. Endotheca made of cellular rather than vesicular dissepiments. Initially styliform, the columella becomes lamellar. Synapticules absent.
According to Beauvais (1970) Acanthogyra belongs to Pruvostastreidae, but Eliasova (1973) and Roniewicz (1976) assigned this genus to Rhipidogyridae on the basis of Acanthogyra columnaris in Eliasova 1973 which is a Columnogyra. Castiglionastrea Gill et al. is a junior synonym better preserved than the Ogilvie's type. 6 Jurassic and 2 Cretaceous nominal species.
- Central Europe; Late Jurassic - Early Cretaceous
- Western Europe; Late Jurassic
- Southern Europe; Late Jurassic
- Eastern Europe; Late Jurassic
- Central Asia; Late Jurassic
- East Asia; Late Jurassic
- Eastern Europe; Early Cretaceous
This page has been in preparation since 06-May-2009 16:42
This version was contributed by Bernard Lathuilière on 24-Apr-2013 09:05.
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