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Hystrichosphaeridium amalthei

"Hystrichosphaeridium amalthei" W. Wetzel, 1966, p.317, pl.31, figs.2,2a-b.

TYPE: Holotype: W. Wetzel, 1966, pl.31, figs.2,2a.

HISTORY: NOW: Dapsilidinium?. Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?.

AGE: Late Toarcian.


Infraspecific taxa:


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