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Polystephanosphaera paracalatha

"Polystephanosphaera paracalatha" Sarjeant, 1960a, p.143-144, pl.6, fig.4; text-fig.3b.

EMENDATION: Stancliffe and Sarjeant, 1990, p.206, as Polystephanephorus paracalathus.

TYPE: Holotype: Sarjeant, 1960a, pl.6, fig.4; text-fig.3b; Stancliffe and Sarjeant, 1990, pl.2, figs.2,3,5; text-fig.2.

HISTORY: NOW: Polystephanephorus. Originally Polystephanosphaera, subsequently (and now) Polystephanephorus, thirdly Hystrichosphaerina.

AGE: Mid Callovian.


Infraspecific taxa:


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