Hystrichosphaeridium amalthei

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"amalthei" Wetzel, 1966, p.317, pl.31, figs.2,2a-b.  Holotype: Wetzel, 1966, pl.31, figs.2,2a.  NOW Dapsilidinium?.  Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?.  Age: Late Toarcian.

Parent: Hystrichosphaeridium