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Temporal range: 157–0Ma
The earliest known salamandroid fossils are of the species Beiyanerpeton jianpingensis. They are from the Tiaojishan Formation. They are dated to the late Jurassic period about 157 million years ago.
- Gao K.-Q. and Shubin, N.H. (2012). "Late Jurassic salamandroid from western Liaoning, China." Proceedings of the National Academy of Sciences (advance online publication).