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Hystrichosphaerina calatha

"Hystrichosphaerina calatha" (Sarjeant, 1961a, p.104, pl.14, fig.7; text-fig.7) Duxbury, 1980, p.126.

EMENDATION: Stancliffe and Sarjeant, 1990, p.205, as Polystephanephorus calathus.

TYPE: Holotype: Sarjeant, 1961a, pl.14, fig.7; text-fig.7; Stancliffe and Sarjeant, 1990, pl.2, figs.1,4; text-fig.1.

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

AGE: Early Oxfordian.


Infraspecific taxa:


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