Hystrichosphaerina calatha
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"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. Holotype: Sarjeant, 1961a, pl.14, fig.7; text-fig.7; Stancliffe and Sarjeant, 1990, pl.2, figs.1,4; text-fig.1. NOW Polystephanephorus. Originally Polystephanosphaera, subsequently (and now) Polystephanephorus, thirdly Hystrichosphaerina. Age: Early Oxfordian.
Parent: Hystrichosphaerina