Stylastraea
Fromentel in Martin 1860, p. 94
Stylastraea Fromentel in Martin 1860, p. 94 is a junior homonym (unavailable).
Stylastraea Fromentel is a junior homonym of Stylastraea Lonsdale 1845 in Murchison, V. and K., Geol., Russia, 1, 619. It corresponds to Chondrocoenia
Type Species
Stylastraea sinemuriensis Fromentel in Martin 1860, p. 94; Subsequent Designation Wells 1936, p. 129
Type Specimen: Syntype; MHNG GEPI 036087; Verified; Dry Preserved
Type Locality: Lower Liassic of Vic de Chassenay (France)
Description
Massive plocoid corallum with small corallites. Peritheca with strong trabeculae when developed. Corallite circular in outline, intercalicular increase. Thick non confluent (or subconfluent ?) costae. Radial elements are compact straight dentate costosepta. Round solid styliform well developed columella. Paliform lobes with contratingent joining of last order septa. Taller septa may join the columella. Wall present with a lower relief than distal edge of radial elements, nature of the wall unknown.
Remarks
Twelve nominal species were attributed to Stylastraea in Jurassic, often as reclassified Astrocoenia.
Distribution
- Western Europe; Early Jurassic
- South Asia; Early Jurassic
This page has been in preparation since 20-Aug-2009 08:54
This version was contributed by Bernard Lathuilière on 16-Nov-2013 10:35.
Page authors are: Bernard Lathuilière. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Bernard Lathuilière
|