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Hystrichosphaera cingulata var. polygonalis

"Hystrichosphaera cingulata var. polygonalis" Clarke and Verdier, 1967, p.47, pl.8, figs.7-8; text-fig.20.

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

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

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

AGE: Late Cenomanian-Early Turonian.


Infraspecific taxa:


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DINOFLAJ (c) 1998