Hystrichosphaera cingulata

"cingulata" (Wetzel, 1933b, p.28, pl.4, fig.10) Deflandre and Cookson, 1955, p.267.  Holotype: Wetzel, 1933b, pl.4, fig.10.  NOW Pterodinium.  Originally Cymatiosphaera (Appendix A), subsequently Hystrichosphaera, thirdly Spiniferites, fourthly Spiniferites?, fifthly (and now) Pterodinium.  Taxonomic junior synonym: Cymatiosphaera (subsequently Spiniferites?) pterota, according to Below (1981a, p.114) — however, Pavlishina (1990, p.95) retained Cymatiosphaera (now Pterodinium?) pterota.  Age: Senonian.

Parent: Hystrichosphaera

Infrataxon List:

"Hystrichosphaera cingulata var. cingulata"
"Hystrichosphaera cingulata var. granulata"
"Hystrichosphaera cingulata var. perforata"
"Hystrichosphaera cingulata var. polygonalis"
"Hystrichosphaera cingulata var. reticulata"