Oligosphaeridium asterigerum

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?asterigerum (Gocht, 1959, p.67, pl.3, fig.1; pl.7, figs.1-4) Davey and Williams, 1969, p.5.  Holotype: Gocht, 1959, pl.3, fig.1; Fauconnier and Masure, 2004, pl.57, figs.1-6.  Originally Hystrichosphaeridium, subsequently (and now) Oligosphaeridium?.  Taxonomic junior synonym: Hystrichosphaeridium (as Oligosphaeridium) vasiformum, according to Duxbury (1977, p.45) - however, McIntyre and Brideaux (1980, p.21) retained Hystrichosphaeridium (as Oligosphaeridium) vasiformum.  Questionable assignment: Davey and Williams (1969, p.5).  This combination, as a questionable assignment, was not validly published in Davey and Williams (1966b, p.77), since these authors did not fully reference the basionym.  Age: Late Valanginian-Late Hauterivian.


Oligosphaeridium asterigerum.jpg
Parent: Oligosphaeridium