Image: Cooperignathus aranda (Cooper)

Cooperignathus aranda (Cooper)

Cooperignathus aranda (Cooper, 1981) from far western New South Wales, Australia. M (I-K), S (L-P), Pa (A-E), and Pb (F-H) elements. Scale bars 100 µm unless otherwise indicated.
 

Photographer:
Yong Yi Zhen
Rights:
© Australian Museum

Notes

Diagnosis

A species of Cooperignathus with an apparatus, including six morphotypes (M, Sa, Sb, Sc, Pa and Pb elements); S elements with a distinctive indentation at the conjunction of the posterior margin of the cusp with the upper margin of the posterior process.

Age

Early Ordovician (Floian), about 472-478 Ma.

Distribution

Australia, Asia, North America, and South America.

Reference

Zhen, Y. Y., Percival, I.G. & Webby, B.D. 2003: Early Ordovician conodonts from far western New South Wales, Australia. Records of the Australian Museum, 55 (2), 169-220.
 

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Tags conodonts, microfossils,