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Pterodinium cingulatum subsp. polygonale

Pterodinium cingulatum subsp. polygonale (Clarke and Verdier, 1967, p.47, pl.8, figs.7-8; text-fig.20) Paul et al., 1994, p.722.

TYPE: Holotype: Clarke and Verdier, 1967, pl.8, fig.7; Jan du Chêne et al., 1986a, pl.89, figs.7-9.

HISTORY: Originally Hystrichosphaera cingulata var. polygonalis, subsequently Spiniferites cingulatus subsp. polygonalis, thirdly Spiniferities? cingulatus subsp. polygonalis, fourthly (and now) Pterodinium cingulatum subsp. polygonale.

SYNONYM(S): Taxonomic senior synonym (at specific rank): Hystrichosphaera (subsequently Spiniferites) crassimuratus, according to Clarke et al. (1968, p.181) - however, Paul et al. (1994, p.722) retained Hystrichosphaera cingulata var. polygonalis (as Pterodinium cingulatum subsp. polygonale).

AGE: Cenomanian.


Infraspecific taxa:


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