Phacelostylophyllum Melnikova, 1972

Vasseur, Raphaël & Lathuilière, Bernard, 2021, Pliensbachian corals from the Western Tethys, Geodiversitas 43 (22), pp. 1187-1291 : 1258

Genus Phacelostylophyllum Melnikova, 1972

urn:lsid:zoobank.org:act:540AF60F-BAF0-4DB9-9FE0-6A9AD494F951

SPECIES ORIGINALLY INCLUDED. —? Phacelostylophyllum pontebbanae ( Volz, 1896) , P. romerloana ( Volz, 1896) , “ P. caespitosa ” ( Frech, 1890) , P. pygmaeum ( Frech, 1890) P. zitteli ( Frech, 1890) , P. karauldyndalaensis ( Melnikova, 1972) .

TYPE SPECIES. — Stylophyllopsis zitteli Frech, 1890 ( Frech 1890: 49, pl. 13, fig. 9-15, 17-24), original designation by Melnikova (1972: 59; p. 198 in the translated version of the Paleontological Journal).

REMARKS

The genus differs from solitary Stylophyllopsis Frech, 1890 by its generally phaceloid growth form which can transform into a subcerioid one. For a long time, the transition between solitary to phaceloid and subcerioid forms have been observed in the group Sylophyllopsis – Phacelostylophyllum . According to the aim of the study (taxonomic description or phylogenetic interpretation) several nomenclatural positions can be adopted. For instance Roniewicz & Michalík (1998) classify the phaceloid forms within the genus Stylophyllopsis that has the nomenclatural anteriority. We prefer to adopt the spectral nomenclature (see Lathuilière 1996) and the use of a morphogenus: Phacelostylophyllum mg.