"Xanthidium spinosum" White, 1842, p.37, pl.4, fig.6.
TYPE: Holotype: White, 1842, pl.4, fig.6. HISTORY: NOW: Exochosphaeridium?. Originally Xanthidium, subsequently Hystrichosphaeridium, thirdly Baltisphaeridium (Appendix A), fourthly Cordosphaeridium (combination not validly published), fifthly Exochosphaeridium, sixthly (and now) Exochosphaeridium?. AGE: Late Cretaceous.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |