Impletosphaeridium elongatum

"elongatum" Lentin and Williams, 1989, p.197.  Holotype: Jiabo, 1978, pl.29, fig.2.  NOW Peltiphoridium oblongatum.  Originally Bipolaribucina oblongatum, subsequently Impletosphaeridium oblongatum (combination illegitimate), thirdly Impletosphaeridium elongatum, fourthly (and now) Peltiphoridium oblongatum.  Substitute name for Impletosphaeridium oblongatum (Jiabo, 1978, p.58, pl.29, figs.1-3) Chen et al., 1988, p.7 (an illegitimate name).  Age: Early Tertiary.

Parent: Impletosphaeridium