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Appendix A

Cymatiosphaera pterota

"Cymatiosphaera pterota" Cookson and Eisenack, 1958, p.50, pl.11, fig.7.

TYPE: Holotype: Cookson and Eisenack, 1958, pl.11, fig.7.

HISTORY: Originally Cymatiosphaera, subsequently Spiniferites, thirdly Hystrichosphaera, fourthly Spiniferites?.

SYNONYM(S): Taxonomic senior synonym: Cymatiosphaera (now Pterodinium) cingulata, according to Below (1981a, p.114). Taxonomic junior synonym: Hystrichosphaera (as Spiniferites; now Pterodinium, according to Kjellström (1973, p.44) - however, see discussion under Pterodinium crassimuratum.

AGE: Albian-Maastrichtian.


Infraspecific taxa:


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