【Main Contents】

1. High-resolution correlation by chemo-biostratigraphy
2. Milankovitch cyclicity and time-spans of the M. U. Devonian biozones
3. Ni-Ir anomaly might have a hydrothermal origin triggered by impact
4. Hydrothermal metal toxicity might be one of the kill mechanisms in mass extinction
5. Evolution and extinction rate of two Devonian conodont genera
6. Numerical simulation of Milankovitch cycle of the Givetian at Liujing
7. Frasnian-Famennian tsunami might be a global event
8. Bathymetric measurement of Nandan Basin based on paleotopography
9. New data on chemo-biostratigraphy of the Givetian at Baqi, Guangxi
10. New data on chemo-biostratigraphy of the Eifelian at Nayi, Guangxi
11. Appendix table
12. Stratigraphic-correlation table of the Devonian in the study area