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Horologinella spinosigibberosa

"Horologinella spinosigibberosa" Brideaux and Fisher, 1976, p.22-24, pl.4, fig.9; pl.5, figs.1-16.

TYPE: Holotype: Brideaux and Fisher, 1976, pl.5, figs.1,5-8.

HISTORY: NOW: Tetrachacysta. Originally Horologinella, subsequently (and now) Tetrachacysta.

AGE: Late Oxfordian-?Portlandian.


Infraspecific taxa:


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