Zhen, Y. Y.; Percival, I. G.; Cooper, R. A.; Simes, J. E.; Wright, A. J. (2009). Darriwilian (Middle Ordovician) conodonts from Thompson Creek, Nelson Province, New Zealand. Memoirs of the Association of Australasian Palaeontologists. 37: 25-53.
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Zhen, Y. Y.; Percival, I. G.; Cooper, R. A.; Simes, J. E.; Wright, A. J.
2009
Darriwilian (Middle Ordovician) conodonts from Thompson Creek, Nelson Province, New Zealand
Memoirs of the Association of Australasian Palaeontologists