logo

Pseudocoeniopsis

Roniewicz, 1976, p. 52

Type Species

Pseudocoenia major Roniewicz 1976, p. 53, pl. 7 fig. 1ab, 2; Original Designation

Type Specimen: Holotype; N°209; Verified; Dry Preserved

Type Locality: Lower Kimmeridgian (Upper Jurassic) of Hirsova (Romania)

The holotype is housed in the University of Bucarest. See Roniewicz, 1976, see also Zaman 2011.

Classification

Description

Plocoid corallum, Peritheca with costal part of radial elements dissociated in trabecules in the peritheca. Costae vertically discontinuous at some distance of the wall. Corallite circular or subcircular in outline. Extracalicinal increase. Radial elements compact, free, bicuneiform, septal part rather straight but occasionally curved, unequal and well organised in size orders and radial symmetry. Inner edge of septa with trabecular lobes, lateral faces with rare strong granules. Microstructure trabecular. Endotheca and peritheca subtabular, columella parietal made by trabecular lobes of S1. No synapticula. Wall parathecal. Epitheca not observed .

Comparisons

Pseudocoeniopsis is close of Decacoenia but the peritheca is dissepimental in Decacoenia and subtabular in Pseudocoeniopsis the hierarchy of size order of septa is also more pronounced in Pseudocoeniopsis than in Decacoenia Pseudocoeniopsis is also close of Pseudocoenia but the development of inner edge of S1 in a parietal columella is a distinctive character for Pseudocoeniopsis.

Remarks

Four species are known in the Upper Jurassic.

Distribution

  • Western Europe; Late Jurassic
  • Southern Europe; Late Jurassic
  • Eastern Europe; Late Jurassic
  • Central Asia; Late Jurassic
  • Southeast Asia; Late Jurassic

This page has been in preparation since 21-Aug-2009 14:00

This version was contributed by Bernard Lathuilière on 02-Apr-2014 16:40.

Page authors are: Bernard Lathuilière Ewa Roniewicz Shaahin Zaman. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Bernard Lathuilière

No Images Found