Meandrophyllia
Orbigny, 1849, p. 9
Type Species
Meandrina lotharinga Michelin p. 100 pl. 22 fig. 2; Monotypy
Type Specimen: Neotype; MNHN B 12734; Verified; Dry Preserved
Type Locality: Oxfordian, St Mihiel (Meuse, France)
The neotype is a big fragment of colony with two thin sections
Synonyms
Description
Ramose meandroid corallum, locally covered by small surfaces of epitheca. Intracalicular increase producing short sinuous series with tholiform collines. Centers distinct by the curvature of septa. Radial elements are subcompact, tortuous, subequal, anastomosing, subconfluent. Distal edge beaded. Endotheca with tabuloid dissepiments. Synapticules present especially in the wall zone. Central zone of corallite depressed and occupied by some detached trabeculae. Wall incomplete generated by the subconfluence of radial elements and additional synapticules.
Remarks
Some species assigned to Meandrophyllia are not ramose like the type-species.
Distribution
- Western Europe, Southern Europe, North Africa, Central Asia; Middle Jurassic - Late Jurassic
The taxonomic boundaries with other meandroid genera is not completely clear and the distribution could be restricted. Meandrophyllia cited in the Dogger are not ramose.This page has been in preparation since 19-Aug-2009 15:52
This version was contributed by Bernard Lathuilière on 23-Oct-2009 09:41.
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
|