"Micrhystridium fucosum" Valensi, 1955a, p.40; text-fig.2b.
TYPE: Holotype: Valensi, 1955a, text-fig.2b. HISTORY: NOW: Dapsilidinium?. Originally Micrhystridium, subsequently Hystrichosphaeridium, thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?. SYNONYM(S): Taxonomic junior synonyms (at specific rank): Hystrichosphaeridium tubiferum subsp. brevispinum, according to Below (1982c, p.29) - however, Lentin and Williams (1985, p.190) retained Hystrichosphaeridium tubiferum subsp. brevispinum; Hystrichosphaeridium (as and now Litosphaeridium) arundum, according to Below (1982c, p.29) - however, Lentin and Williams (1985, p.227) retained Litosphaeridium arundum. AGE: Late Cretaceous.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |