Hystrichosphaeridium pumile
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"pumile" Wetzel, 1933b, p.44, pl.4, fig.24 ex Deflandre, 1937b, p.78. Emendation: Sarjeant, 1985b, p.162, as Diacrocanthidium? pumile. Holotype: Wetzel, 1933b, pl.4, fig.24. NOW Diacrocanthidium? pumile (Appendix A) Originally Hystrichosphaera longispinosa forma pumilis (name not validly published), subsequently Hystrichosphaeridium pumile, thirdly Baltisphaeridium pumile (combination not validly published; Appendix A), fourthly Micrhystridium pumile (Appendix A), fifthly (and now) Diacrocanthidium? pumile (Appendix A). The name Hystrichosphaera longispinosa forma pumilis was not validly published in Wetzel (1933b), since the species name Hystrichosphaera longispinosa was not validly published. Age: Late Cretaceous (erratic).
Parent: Hystrichosphaeridium
