Latiastrea
Beauvais, 1964: 254
pars. Latimeandra Koby, 1884
Type Species
Latiastrea foulassensis L. Beauvais 1964: 255, text-fig. 52, pl.37, fig.1a,b; Original Designation L. Beauvais 1964: 255
Type Specimen: Holotype; MNHN R10749; Verified; Dry Preserved
Type Locality: Valfin-lès-Saint-Claude, France. Kimmeridgian, Late Jurassic
Classification
Diagnosis
Cerioid. Corallites polygonal, monocentric with the exception of the process of budding. Budding intracalicular without lamellar connections of centers. Radial elements non-confluent and subconfluent, anastomosing; rare perforations near the inner margins. Septa differentiated into three size orders: the S1 septa reach the axial region with trabecular projections of the inner margin and form a papillar columella, the S2 septa shorter, anastomosing with the S1 septa or free; the S3 septa short. Lateral faces with pennulae; distal margin denticulated. Endotheca abundant, vesicular. Wall septo-synapticular.
Description
The type has been well described and clearly illustrated in Beauvais 1964: text-fig. 52, pl.37, fig. 1
Comparisons
Among genera with pennular micromorphology, cerioid colony structure and non-confluent (and subconfluent) septa, the only counterpart of Latiastrea is Mixastraea Roniewicz, 1976. Latiastrea differs from Mixastraea in its intracalicular buddding without any skeletal connections between centers, while in Mixastraea the centers are connected temporarily by septa. From Microphyllia d’Orbigny, 1849 and Comophyllia d’Orbigny, 1849, similar in septal structure, columella, and wall, it differs in cerioid colony while Microphyllia and Comophyllia have permanently serial distribution of corallites with lamellar linkages between the centers.
Remarks
About 10 nominal species were determined among Late Jurassic and Early Cretaceous corals of Europe, Japan and Mexico.
Distribution
- Western Europe, Eastern Europe; Late Jurassic - Early Cretaceous
- Central Europe; Late Jurassic
- South Asia; Late Jurassic
- Central America; Early Cretaceous
- Southern Europe; Late Cretaceous
The genus known from all parts of Europe, in Japan and Mexico.This page has been in preparation since 19-Aug-2009 15:08
This version was contributed by Bernard Lathuilière on 13-Mar-2013 09:01.
Page authors are: Ewa Roniewicz. 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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