Image: Serratognathus diversus An

Serratognathus diversus An

Serratognathus diversus An, 1981 from Guizhou, South China. 

Photographer:
Yong Yi Zhen
Rights:
© Australian Museum

Notes

Diagnosis

Species of Serratognathus with an apparatus including three morphotypes, symmetrical Sa (D), asymmetrical Sb (B, G-H), and strongly asymmetrical Sc (C, E-F, I-O) elements bearing a prominent and laterally compressed cusp. Scale bars 100 µm unless otherwise indicated.

Age

Early Ordovician (early Floian), about 476-478 Ma.

Distribution

China.

Reference

Zhen, Y. Y., Percival, I.G., Liu, J.B. & Zhang, Y.D., 2009: Conodont fauna and biostratigraphy of the Honghuayuan Formation (Early Ordovician) of Guizhou, South China. Alcheringa 33 (3), 257-295.

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Tags conodonts, microfossils,