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Appendix A

Striatotheca geometrica

Striatotheca geometrica (Deflandre, 1945a, p.64-65, pl.2, figs.2-5) Sarjeant and Stancliffe, 1994, p.46.

TYPE: Holotype: Deflandre, 1945a, pl.2, fig.2.

HISTORY: Originally Hystrichosphaeridium geometricum, subsequently Veryhachium geometricum (Appendix A), thirdly Veryhachium trispinosum subsp. geometricum (combination not validly published, Appendix A), fourthly (and now) Striatotheca geometrica.

AGE: Mid Silurian.


Infraspecific taxa:


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