The bristletail genus Dasyleptus (Insecta: Archaeognatha: Dasyleptidae) from the Upper Permian-Lower Triassic Kayitou Formation of SouthWestern China

ABSTRACT

The extinct bristletail genus Dasyleptus is a typical late Palaeozoic insect group that widely distributed in the Northern Hemisphere. Here we describe the first fossil record of Dasyleptus from the Upper Permian-Lower Triassic transitional strata (the Kayitou Formation) in the Yinchanggou Coalmine, Fuyuan County, eastern Yunnan Province, China. A new species, Dasyleptus sinensis sp. nov., is established. Our find of Dasyleptus fossils suggests a probable latest Permian age for the fossiliferous strata, before the terrestrial extinction at the Permian–Triassic boundary.

KEYWORDS:

• Fossil hexapods
• bristletails
• P-T extinction
• terrestrial ecosystem

Acknowledgments

We are grateful to Prof. Alex Rasnitsyn and an anonymous referee for providing constructive suggestions. We are grateful to Prof. Shu-Zhong Shen for bibliographic help.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work has been supported by the Strategic Priority Research Program of the Chinese Academy of Sciences [XDB26000000 and XDB18000000] and the National Natural Science Foundation of China [41688103], the District Summary and Service Product Develop of Yunnan Geologic Survey (NO. 121201102000150012-02).