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Hystrichosphaeridium speciale

"Hystrichosphaeridium speciale" Lentin and Williams, 1981, p.147.

TYPE: Holotype: Merrill, 1895, text-fig.14.

HISTORY: Originally Geodia? irregularis (Appendix A), subsequently Hystrichosphaeridium irregulare (combination illegitimate), thirdly Hystrichosphaeridium? irregulare (combination illegitimate), fourthly Hystrichosphaeridium speciale.

SYNONYM(S): Taxonomic senior synonym: Xanthidium tubiferum var. complex (now Oligosphaeridium complex), according to Harker and Sarjeant in Harker et al. (1990, p.59).

COMMENTS: This is the substitute name for Hystrichosphaeridium? irregulare (Merrill, 1895, p.16; text-fig.14) Sarjeant, 1964b, p.175 (an illegitimate name).

AGE: Early Cretaceous.


Infraspecific taxa:


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