Strotogyra
Wells, 1937, p. 73
Type Species
Rhipidogyra undulata Reuss, 1854: 93, pl. 20, figs. 10-12; Original Designation Wells, 1937: 73
Type Specimen: Syntype; ; Verified; Unknown
Type Locality: Upper Turonian to Campanian of Austria (Gosau Group).
The type material of the type species is housed at NHMW (Vienna) under 1864/0040/1260 and 1864/00I/681.
Classification
Diagnosis
Colonial. Gemmation intramural, linear, polystomodaeal, forming corallites arranged uniserially, contorted. free laterally. Septa exsert, numerous, compact, non-dentate on upper margins, granulated laterally. Costae bifurcating, distinct to base. Columella lamellar, discontinuous, attached to processes from inner edges of septa. Endothecal dissepiments vesicular and subhorizontal. Wall septothecal with parathecal stereozone. Multi-lamellar epitheca often present.
Remarks
Wells (1937, p. 73) created this genus to separate Upper Cretaceous species formerly placed in Rhipidogyra Milne Edwards and Haime, 1848. According to him the latter is confined to the Upper Jurassic and Lower Cretaceous and forms, together with several contemporary genera, a separate family group. Later investigations by several authors (e.g. Alloiteau, 1952a; Roniewicz, 1976) confirmed this separation by assigning Strotogyra to the meandrinid group and creating the suborder Rhipidogyrina using Rhipidogyra as the nominate form. The original description of Strotogyra Wells was later revised by M. Beauvais (1982, vol. 1, p. 191).
Distribution
- Southern Europe; Early Cretaceous - Late Cretaceous
- Central Europe; Late Cretaceous
- Eastern Europe; Late Cretaceous
This page has been in preparation since 02-Jun-2007 12:36
This version was contributed by Rosemarie Baron-Szabo on 22-Jan-2012 20:24.
Page authors are: Rosemarie Baron-Szabo. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Rosemarie Baron-Szabo
|