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Pachyphyllia

Alloiteau, 1957, p. 126

Type Species

Phyllocoenia toucasi de Fromentel, 1884: 549; Original Designation Alloiteau, 1957: 126

Type Specimen: Holotype; ; Verified; Unknown

Type Locality: Santonian of France (Le Beausset, Var).

The holotype of the type species is housed at MNHN (Paris) under R.10947.

Classification

Diagnosis

Colonial, plocoid, corallites circular or irregularly elliptical in outline, projecting or flat. Costosepta compact, non-confluent to sub-confluent, beaded marginally, arranged radially or bilaterally. Oldest septa generally reach axial part of corallite and fuse with columella. Septal flanks are irregularly covered by short spines and granules that are often less than 50 µm. Their shapes include rounded granules, short thorns, and carinae-like forms. Budding extracalicular and marginal. Columella lamellar or made of lamellar, trabecular segments. Paliform lobes present or absent. Synapticulae sparse. Peritheca vesicular to subtabular. Wall parasynapticulothecal, septothecal in places.

Remarks

The species Phyllocoenia nannodes FELIX, 1891, from the Barremian of Mexico, recently grouped with Pachyphyllia (see LÖSER, 2006, p. 37) is excluded from the list of occurrences because its columellar and endothecal structures are unknown, and, in addition, it differs from Pachyphyllia in having a parathecal wall.

Distribution

  • Southern Europe; Late Cretaceous
  • Central Europe; Late Cretaceous
  • Eastern Europe; Late Cretaceous

This page has been in preparation since 02-Jun-2007 12:36

This version was contributed by Rosemarie Baron-Szabo on 14-Jul-2017 21:57.

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


Pachyphyllia toucasi (de Fromentel, 1884)
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Pachyphyllia toucasi (de Fromentel, 1884), topotype
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