Pterodinium crassimuratum (Davey and Williams, 1966a, p.39, pl.1, fig.11) Thurow et al., 1988, p.624.
TYPE: Holotype: Davey and Williams, 1966a, pl.1, fig.11. HISTORY: Originally Hystrichosphaera, subsequently Spiniferites, thirdly (and now) Pterodinium. SYNONYM(S): Taxonomic senior synonym: Cymatiosphaera (as Spiniferites?) pterota, according to Kjellström (1973, p.44) - however, by considering Cymatiosphaera pterota, but not Hystrichosphaera (now Pterodinium) crassimurata, as a taxonomic junior synonym of Cymatiosphaera (now Pterodinium) cingulata, Below (1981a, p.114) effectively retained Hystrichosphaera (now Pterodinium) crassimurata. Taxonomic junior synonym (at specific rank): Hystrichosphaera cingulata var. polygonalis, 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: Go up one level. DINOFLAJ (c) 1998 |