Hystrichosphaera crassimurata

"crassimurata" Davey and Williams, 1966a, p.39, pl.1, fig.11.  Holotype: Davey and Williams, 1966a, pl.1, fig.11.  Originally Hystrichosphaera, subsequently Spiniferites, thirdly Pterodinium.  Taxonomic senior synonym: Cymatiosphaera (as Spiniferites?, now Pterodinium) pterota, according to Kjellström (1973, p.44) and Pavlishina (1990, p.95).  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.

Parent: Hystrichosphaera