Palaeocyathus
Alloiteau, 1956, n° 86
Type Species
Palaeocyathus fromenteli Alloiteau, 1956, Pal univ. n°86, fig. 1-2; Original Designation
Type Specimen: Holotype; MNHN M03524; Not Traced; Unknown
Type Locality: Domerian (Lower Jurassic) of May sur Orne (Calvados; France)
Classification
Description
Solitary discoid corallum. Epitheca weakly folded covering a little more than half of the basal face. Calice circular in outline. Radial elements are compact straight free costo-septa. Distal edge possibly weakly dentate, lateral faces with slight carinae in one fan system. Palis in front of S1 and S2. Hexameral symmetry. Endotheca of thin and wide dissepiments, columella styliform or formed by 3 fused rods, wall parathecal, locally septothecal. (adapted from the initial Alloiteau’s text)
Comparisons
Close of Discocyathus and Thecocyathus
Remarks
Presently only the holotype is known.
Distribution
- Western Europe; Early Jurassic
This page has been in preparation since 19-Aug-2009 16:25
This version was contributed by Bernard Lathuilière on 19-Mar-2011 09:09.
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
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