Cyathophylliopsis
Beauvais, 1970, p.54
Type Species
Montlivaltia delabechei Edwards and Haime 1851, p. 132, pl. 26 fig. 5-6; Original Designation
Type Specimen: Lectotype; MNHN ; Lost; Unknown
Type Locality: Inferior Oolite (Bajocian; Middle Jurassic) of Castel Carrey (Somersetshire; Great Britain)
Only a paralectotype remains A33492 in MNHN
Classification
Diagnosis
Like Montlivaltia but a weak parietal columella with a chicoraceous top and dissepiments raised upward at the periphery of the corallite.
Description
Simple discoid coral. Upper face convex with exsert radial elements. Lower face covered with a striated and folded wall of endothecal origin. Elliptical central fossa with a small parietal columella. Radial elements are compact costo-septa. Distal and outer edge with sharp, equal and regularly spaced teeth. Lateral faces are ornamented with carinae perpendicular to the distal edge. Radial hexameral symmetry. Endotheca made of wide, distally arched dissepiments occupying almost all the length of interseptal chambers but not crossing the axial cavity. No synapticule.
Remarks
Two nominal species known, in Jurassic only.
Distribution
- Western Europe; Middle Jurassic
- South America; Middle Jurassic
A citation with question mark of C. canadiensis is available from Aalenian of Canada (Beauvais 1982) C. delabechei from Iran (Pandey and Fürsich 2003) is not included because of their clear lamellar columella. Many old citations of the type species under the name Montlivaltia remain to be revised.This page has been in preparation since 07-May-2009 10:53
This version was contributed by Bernard Lathuilière on 27-May-2017 09:48.
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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