Placastrea

Stoliczka, 1873, p. 33

Placastrea Stoliczka, 1873, p. 33 is a nomen dubium (unavailable).

Type Species

Placastrea elegans Stoliczka, 1873, p. 33, pl. 7, fig. 1; Original Designation Stoliczka, 1873, p. 33

Type Specimen: Holotype; ; Not Traced; Unknown

Type Locality: Albian of India

The holotype of the type species is housed at GIS (Calcutta) under 1790.

Remarks

According to Stoliczka (1873, p. 33), his newly created genus Placastrea had all characteristics of a 'true' Astrea but differed from it by the occurrence of a 'solid compressedly columnar columella' and 'denticles at inner ends of septa not enlarged'. This description in insufficient in that it remains unclear how Placastrea differed from faviid genera like e.g. Favites or Ovalastrea, or fungiid taxa like Siderastrea, or even mussid forms like Acanthastrea. Wells (1956) grouped Placastrea with Isastrea. Material that has recently been assigned to Placastrea elegans Stoliczka by Loser et al (2009) shows close affinities to the genus Ovalastrea.

Distribution

• South Asia; Early Cretaceous

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

This version was contributed by Rosemarie Baron-Szabo on 20-Sep-2010 17:36.

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