Alloiteau, 1958, p. 11
In the same publication, Alloiteau (1958) used different spellings for the genus name: Allocaeniopsis (p. 11) and Allocœniopsis (p. 12) and Allocoeniopsis (pl. 12). As an incorrect transliteration or Latinization cannot be considered for a name to be corrected (ICZN art. 32.5.1), we must follow the First Revisor, Fischer (1969: 53) who used Allocoeniopsis and not Allocaeniopsis which is considered unavailable. See Lathuilière, Charbonnier and Pacaud (2017) for more details.
Stephanocoenia oolitica Koby 1905, p. 860, pl. 54 fig. 3-4; Original Designation
Type Specimen: Lectotype; MNHN A32025; Verified; Dry Preserved
Type Locality: Bathonian (Middle Jurassic) of Grasse Roquevignon (Alpes maritimes, France)
The lectotype is a small skullcap colony with a small part polished.
Massive cerioid-thamnasterioid corallum with polygonal corallites No visible epitheca. Intercalicinal increase. Radial elements are compact free or anastomosed biseptal sheets bent upon the wall. Septa attenuated. Distal edge with equal regular teeth, inner edge with regular teeth, lateral faces with acute granules probably aligned in steeply inclined carinae. A crown of pali more or less regularly expressed according to corallites. Microstructure unknown. Hexameral symmetry well expressed, weak bilateral symmetry characterised by elongation of the columella . Endotheca not visible , columella styliform to sublamellar, synapticulae probably absent, wall not high enough to be visible everywhere, sometimes in zigzag, nature unknown.
Eight nominal species in Jurassic only
- Western Europe, North Africa; Early Jurassic - Middle Jurassic
This page has been in preparation since 07-May-2009 07:19
This version was contributed by Bernard Lathuilière on 21-Jul-2017 13:55.
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