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Appendix A

Palaeohystrichosphaeridium williereae subsp. dameryense

"Palaeohystrichosphaeridium williereae subsp. dameryense" (Dorning, 1981, p.188, pl.2, fig.6) Fensome et al., 1990, p.384.

TYPE: Holotype: Dorning, 1981, pl.2, fig.6.

HISTORY: NOW: Dilatisphaera williereae subsp. dameryensis. Originally Dilatisphaera dameryensis (Appendix A), subsequently Palaeohystrichosphaeridium willierae subsp. dameryense, thirdly (and now) Dilatisphaera williereae subsp. dameryensis.

COMMENTS: The combination Palaeohystrichosphaeridium williereae subsp. dameryense was not validly published in Eiserhardt (1986, p.182) since that author did not specify the taxonomic rank; he gave the citation "Palaeohystrichosphaeridium williereae dameryensis."

AGE: Silurian (Llandovery).


Infraspecific taxa:


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