"Hystrichosphaeridium costatum" Davey and Williams, 1966b, p.62, pl.10, fig.4.
TYPE: Holotype: Davey and Williams, 1966b, pl.10, fig.4; Stancliffe and Sarjeant, 1990, pl.3, fig.1. HISTORY: Originally Hystrichosphaeridium, subsequently Cordosphaeridium, thirdly Compositosphaeridium Dodekova. SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (now Compositosphaeridium) polonicum, according to Beju (1971, p.292). AGE: Oxfordian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |