Impletosphaeridium sarmentum

"sarmentum" (Stancliffe, 1991, p.187-188, pl.1, figs.1-2; pl.2, fig.6; text-figs.5A-B) Williams et al., 1998, p.335.  Holotype: Stancliffe, 1991, pl.1, figs.1-2; text-figs.5A-B.  NOW Downiesphaeridium.  Originally Cleistosphaeridium, subsequently Impletosphaeridium, thirdly (and now) Downiesphaeridium.  N.I.A.  Age: Late Oxfordian.

Parent: Impletosphaeridium