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Appendix A

Veryhachium trispinosum subsp. trisulcum

"Veryhachium trispinosum subsp. trisulcum" (Deunff, 1951, p.323, caption to text-fig.3 ex Deunff, 1959, p.27-28; pl.1, figs.1-4,8,10,12-14,16-17,20,22-23) Tynni, 1982, p.85.

TYPE: Holotype: Deunff, 1959, pl.1, fig.4 (see Fensome et al., 1990, p.526, under Veryhachium trisulcum).

STATUS: Combination not validly published: basionym not fully referenced.

HISTORY: Originally Hystrichosphaeridium trisulcum (name not validly published), subsequently Veryhachium trisulcum (name not validly published), thirdly Veryhachium trisulcum (Appendix A), fourthly Veryhachium trispinosum subsp. trisculum (combination not validly published).

SYNONYM(S): Taxonomic senior synonym (at specific rank): Hystrichosphaeridium (now Veryhachium) trispinosum, according to Stancliffe and Sarjeant (1994, p.233).

AGE: Mid Ordovician.


Infraspecific taxa:


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