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Oligosphaeridium irregulare

"Oligosphaeridium irregulare" (Pocock, 1962, p.82, pl.15, figs.228-229) Davey and Williams, 1969, p.5.

TYPE: Holotype: Pocock, 1962, pl.15, figs.228-229.

HISTORY: Originally Hystrichosphaeridium, subsequently Oligosphaeridium.

SYNONYM(S): Taxonomic senior synonym: Hystrichosphaeridium (as Oligosphaeridium) albertense, according to Jansonius (1986, p.213). Taxonomic junior synonyms: Hystrichosphaeridium (as Oligosphaeridium?) coelenteratum, Hystrichosphaeridium (as Oligosphaeridium?) dispare, Hystrichosphaeridum (as Oligosphaeridium) reniforme, all according to Stover and Evitt (1978, p.69).

COMMENTS: 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 Barremian-Aptian.


Infraspecific taxa:


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