Columastrea
Orbigny, 1849, p. 9
Type Species
Astrea striata Goldfuss, 1826: 111.; Subsequent Designation d'Orbigny, 1849: 9.
Type Specimen: Syntype; ; Verified; Dry Preserved
Type Locality: Senonian of Austria (Gosau Group).
The type material is housed at IPB (Bonn) under no. 297, Goldfuss collection.
Classification
Synonyms
Diagnosis
Colonial, massive, plocoid to cerio-plocoid. Budding extracalicinal and ?intracalicinal. Perithecal dissepiments vesicular to subtabulate. Costosepta compact, arranged radially, mostly nonconfluent, but subconfluent to confluent in places. Superficially, costae extend over the coenosteum or are restricted to corallite wall. Septal margins finely granulated. Columella styliform to sublamellar, or made of a small number of papillae. Pali present before 1st cycle septa, 2nd cycle pali irregularly present, generally forming an incomplete ring. Pali of S2 frequently fuse with pali of S1, giving the impression of the occurrence of a smaller number of pali, as in those cases they appear as S1 pali only. Axial ends of septa that are irregularly connected with paliform structures form auriculae-like developments. Endothecal dissepiments thin, subtabulate. Wall parathecal to septothecal, with occasional pores. Perithecal wall consists of reduced costae or a series of reduced costae arranged in layers around the corallite (similar as in e.g., Heliocoenia).
Distribution
- Southern Europe, Central Europe, Eastern Europe; Early Cretaceous - Late Cretaceous
- South America; Early Cretaceous
Contains
This page has been in preparation since 02-Jun-2007 12:35
This version was contributed by Rosemarie Baron-Szabo on 05-Nov-2016 17:38.
Page authors are: Rosemarie Baron-Szabo. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Rosemarie Baron-Szabo
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