Polysphaeridium asperum (Maier, 1959, p.319, pl.33, fig.2) Davey and Williams, 1969, p.6.
EMENDATION: Sarjeant, 1983, p.113-114, as Polysphaeridium asperum. TYPE: Holotype: Maier, 1959, pl.33, fig.2. HISTORY: Originally Hystrichosphaeridium, subsequently Polysphaeridium?, thirdly Dapsilidinium, fourthly (and now) Polysphaeridium. Questionable assignment: Davey and Williams (1969, p.6) - however, Sarjeant (1983, p.113-114) retained this species in Polysphaeridium without question. COMMENTS: This combination, as a questionable assignment, was not validly published in Davey and Williams (1966b, p.95), since these authors did not fully reference the basionym. AGE: Mid Miocene.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |