Lafuste, 1957, p. 150
Heliostylina Lafuste, 1957, p. 150 is a junior synonym (available and invalid), see Heliocoenia Etallon, 1859, p. 74/ 474.
Heliostylina was initially created as a subgenus of Stylina
Adelocoenia corallina d’Orbigny, 1850, p. 32; Original Designation
Type Specimen: Lectotype; MNHN R09321; Not Traced; Dry Preserved
Type Locality: Corallian (now Kimmeridgian; Upper Jurassic) of Angoulins (France)
For reasons of secondary homonymy with Heliocoenia corallina Koby, 1881, the type species was also named Heliocoenia orbignyi Roniewicz 1966 in infringement of the principle of priority.
Heliostylina was defined as a hexameral coral like Stylina in the young stage and a bilateral coral like Heliocoenia in the adult stage. The bilaterality is obtained in some calices by the absence of 4 S3 in lateral sectors.
Initially thought as an intermediate between Stylina and Heliocoenia on the basis of the septal insertion, Heliostylina is considered as a junior synonym of Heliocoenia (Roniewicz 1966, 1976). For Zaman (2012) also, Heliostylina represents the normal set of developmental features observed in Heliocoenia.
This page has been in preparation since 21-Aug-2009 13:27
This version was contributed by Bernard Lathuilière on 02-Apr-2014 09:11.
Page authors are: Shaahin Zaman Ewa Roniewicz. Please contact the editor if you would like to contribute to the diagnosis of this taxon.
The editor is: Bernard Lathuilière