Calamophylliopsis
Alloiteau 1952: 672
Type Species
Calamophyllia flabellata de Fromentel, 1861: 136; Monotypy de Fromentel, 1861: 136
Type Specimen: Holotype; MNHN ; Not Traced; Dry Preserved
Type Locality: Vicinity of Auxerre, France. Late Jurassic (“Rauracien”)
The type specimen has not been figured by de Fromentel. For the first time, the features observable on the surface of the type specimen were described and discussed by Alloiteau, 1957: 177 and figured in pl. 6: 15, 16, and discussed by Beauvais 1964: 242.
Classification
Diagnosis
Phaceloid, corallites costulated, with epithecal rings of various width; costae thin, uniform, granulated. Calices concave. Septa compact, only near the inner margin irregular large pores. Septa differentiated into three size orders, the S1 septa and S2 septa set off long trabecular lobes which constitute a papillar columella; the S3 septa are short. Septal faces granulated. Endotheca composed of thin-walled, extended disepiments. Wall septothecal with addition of trabecular elements possibly of synapticular nature. Small, exothecal dissepiments may be present between the epitheca and the septotheca. Increase by partitioning of the calice into two or more descendant corallites, without septal linkages between the centers.
Description
Alloiteau 1957: pl.6,fig.15 and 16 figured the type of the type species. Beauvais (1964) described and illustrated morphology of corall of a number of species presenting specimens from the Koby collection, and specimen from the Michelin collection. Corallite structure in thin sections including microstructure of the wall and septa in one species and mode of budding in other species were illustrated in Roniewicz 1966 and 1976.
Comparisons
Corallite structure is similar to that in Dermosmilia Koby, but corallites are thinner in diameters and corallum composed usually of parallel corallites, while Dermosmilia has arborescent phaceloid corallum.
Distribution
- Western Europe; Late Jurassic
- Central Europe; Late Jurassic
- Southern Europe; Early Cretaceous
In the Late Jurassic common in the whole Europe Europe; in the Cretaceous in the Southern Europe.This page has been in preparation since 07-May-2009 09:45
This version was contributed by Ewa Roniewicz on 20-Nov-2010 17:05.
Page authors are: Ewa Roniewicz. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Bernard Lathuilière
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