Adnatosphaeridium patulum

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"?patulum" Williams and Downie, 1966c, p.217-218, pl.24, figs.1-2; text-fig.58.  Holotype: Williams and Downie, 1966c, pl.24, fig.2; text-fig.58.  NOW Thalassiphora.  Originally Adnatosphaeridium?, subsequently (and now) Thalassiphora.  Questionable assignment: Williams and Downie (1966c, p.217).  Taxonomic senior synonym: Thalassiphora pelagica, according to Benedek and Gocht (1981, p.59) - however, Lentin and Williams (1985, p.354) retained Thalassiphora patula.  Taxonomic junior synonym: Subathua sahnii, according to Stover and Williams (1987, p.207) and Lentin and Williams (1989, p.354).  Age: Early Eocene.

Parent: Adnatosphaeridium