Mareastraea
Chevalier, 1968:120
Considered to be a sub-genus of Acanthastraea Milne-Edwards et Haime.
Type Species
Mareastraea grandiflora Chevalier 1968: 120, text-fig. 8,9, pl.4, fig.4; pl.6, fig.1; Monotypy Chevalier, 1968:120
Type Specimen: Holotype; MNHN bed MA 115; Not Traced; Dry Preserved
Type Locality: Island Maré, Loyality Islands; Holocene, bed MA 115.
Classification
Diagnosis
Plocoid, massive, composed of large corallites. Increase intracalicular, marginal. Costosepta porous at the inner margin; micromorphology and microstructure of the mussiid type. Columella spongy, moderately developed, similar to that in Acanthastraea. Costae poorly developed, not confluent. Endo- and exotheca well developed, composed of vesicular dissepiments continuing between the corallites. Wall absent.
Description
Well described and illustrated in Chevalier 1986: 120-122.
Comparisons
In the structure od radial elements, columella and arrangement of dissepiemnt, this coral is close to Acanthastraea, from which it differs in the presence of exotheca; it is considered to be a sub-genus of Acanthastraea. From Lobophyllia and Mussismsilia it is easily distinguishable for their phaceloid growth form. From Favia differs in the structure of radial elements.
Remarks
Only one species is known.
Distribution
The species known from one site.This page has been in preparation since 18-Oct-2010 08:31
This version was contributed by Ewa Roniewicz on 10-Nov-2010 10:54.
Page authors are: Ewa Roniewicz. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Ewa Roniewicz
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