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Achomosphaera malleofera
Achomosphaera ?malleofera, (White, 1842, p. 37, pl.4, div.3, fig.7), Sarjeant, 1991, p. 88.
Originally Xanthidium (Appendix A), subsequently Baltisphaeridium (Appendix A), thirdly (and now) Achomosphaera?, fourthly Hystrichosphaeridium (combination not validly published: in contradiction to the informal treatment of Sarjeant (1991, p.88) and the formal treatment of Lentin and Williams (1993), this combination is not attributable to Deflandre (1937b)). Questionable assignment: Sarjeant (1991, p.88).
Holotype: White, 1842, pl.4, div.3, fig.7; Sarjeant, 1991, fig.4.6.
Age: Late Cretaceous.
Originally Xanthidium (Appendix A), subsequently Baltisphaeridium (Appendix A), thirdly (and now) Achomosphaera?, fourthly Hystrichosphaeridium (combination not validly published: in contradiction to the informal treatment of Sarjeant (1991, p.88) and the formal treatment of Lentin and Williams (1993), this combination is not attributable to Deflandre (1937b)). Questionable assignment: Sarjeant (1991, p.88).
Holotype: White, 1842, pl.4, div.3, fig.7; Sarjeant, 1991, fig.4.6.
Age: Late Cretaceous.