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Pamirastraea

Melnikova, 1975, p. 99

The genus Pamirastraea is a senior subjective synonym of Gablonzeria Cuif, 1976 based on Isastraea profunda major Frech, 1890

Type Species

Isastraea profunda Reuss, 1854:116, pl. 9, figs.5, 6; Original Designation Roniewicz, 1989

Type Specimen: Neotype; NHMW 1851 XII 1898; Verified; Dry Preserved

Type Locality: Oedalm (Kesselwand-Rohrmoos). Northern Calcareous Alps, Zlambach Beds, Rhaetian, Late Triassic

Classification

Synonyms

Diagnosis

Colonies cerioid. Budding by symmetrical division into two, rarely three calices. Septa compact. Trabeculae arranged in monolinear series, from vertical at the periphery, becoming progressively inclined toward the corallite axis. Lateral ornamentation granular. Wall in microstructural continuity with septa, built of vertical trabeculae ordered in a monolinear series.

Description

Two European species, Pamirastraea major (Frech) and P. profunda (Reuss) were well described and figured in Frech 1890, Cuif 1976 and Roniewicz 1989. Melnikova’s 1975 description of Pamirian material, under the homonymous name of P. profunda (Reuss) concerns a new species.

Comparisons

The genus differs from other genera with its perfectly trabecular wall and septa.

Remarks

Five species are known.

Distribution

  • Western Europe; Late Triassic
  • Southern Europe; Late Triassic
  • Central Europe; Late Triassic
  • Eastern Europe; Late Triassic
  • Central Asia; Late Triassic
Early Norian, Taurus Mountains; Late Norian, Pamirs; Rhaetian, Northern Calcarerous Alps.

This page has been in preparation since 29-Apr-2009 15:34

This version was contributed by Ken Johnson on 22-Aug-2013 17:26.

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

Comments

from Bernard Lathuilière on 19-Aug-2009 16:37

the synonymy with Isastrea is very probably a mistake, not coherent with microstructure, wall and familial assignation.
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