Image: Erraticodon hexianensis An and Ding, 1
Erraticodon hexianensis An and Ding, 1985 from Guizhou, South China. M (1-7) and Sa (8-15) elements. Scale bars 100 µm unless otherwise indicated.
- Yong Yi Zhen
- © Australian Museum
A species of Erraticodon with an apparatus, including eight morphotypes (M, Sa, Sb, Sc, Sd, Pa, Pb and Pc elements); all elements with a prominent cusp, and discrete, peg-like denticles on the processes; Sa element with short lateral processes each typically bearing a single denticle.
Middle Ordovician (Darriwilian), about 461-468 Ma.
Zhen, Y. Y., Liu, J.B. & Percival, I.G. 2007: Revision of the conodont Erraticodon hexianensis from the upper Meitan Formation (Middle Ordovician) of Guizhou, South China. Palaeontological Research 11, 145-162.