Parapleurosmilia

Beauvais, 1986, p. 15

Type Species

Parapleurosmilia inflata Beauvais, 1986, p. 15 pl. 1 fig. 4 pl. 3 fig. 1; Original Designation

Type Specimen: Holotype; MNHN R 11589; Verified; Dry Preserved

Type Locality: Pliensbachian 1km W Tizi n'Nasa (Morocco)

3 paratypes exist. The paratype R11592 includes two transverse thin sections.

Description

Trochoid solitary corallum, covered with a finely striated epitheca, elliptical calice. Radial element compact, smooth or finely denticulate, free, attenuated strongly hierarchised regarding their thickness. Distal edge not observed. In depth major septa join the lamellar columella. Perfect microstructural continuity between non trabecular septa, endotheca and wall. Hexameral symmetry despite the strong bilateral symmetry due to elongation of the calice and the lamellar columella. Tabular dissepiments subvertically oriented near the wall. Stereozone. No synapticule, no palus.

Remarks

From the type material in its present state, it is not possible to know if the calice was infundibuliform or if the radial elements were exsert. One nominal species.

Distribution

• North Africa; Early Jurassic

This page has been in preparation since 19-Aug-2009 16:42

This version was contributed by Bernard Lathuilière on 08-Dec-2009 15:54.

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