Xanthidium reginaldii Appendix A
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"reginaldii" Mantell, 1844, p.240; text-fig.53, no.5. Emendation: Sarjeant, 1967c, p.244–245, as Hystrichosphaera reginaldii. Holotype: Mantell, 1844, text-fig.53, no.5; Sarjeant, 1967c, figs.3A–B,4–5; Sarjeant, 1992a, figs.2,4a–b. NOW Spiniferites?. Originally Xanthidium, subsequently Spiniferites, thirdly Hystrichosphaera, fourthly Baltisphaeridium (Appendix A), fifthly (and now) Spiniferites?. Age: Late Cretaceous.
Parent: Xanthidium_Appendix A