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Veryhachium staurasteroides
Veryhachium staurasteroides (Deflandre, 1945) Downie and Sarjeant, 1965
Originally Hystrichosphaeridium, subsequently (and now) Veryhachium. This combination was not validly published in Deunff, 1954 since that author neither fully referenced the basionym nor clearly used the name Veryhachium staurasteroides.
Holotype: Deflandre, 1945, pl.2, fig.7
Age: Middle Silurian
Originally Hystrichosphaeridium, subsequently (and now) Veryhachium. This combination was not validly published in Deunff, 1954 since that author neither fully referenced the basionym nor clearly used the name Veryhachium staurasteroides.
Holotype: Deflandre, 1945, pl.2, fig.7
Age: Middle Silurian