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The Yanliao Biota is the name given to an assembly of fossils preserved in northeastern China from the Middle to Late Jurassic.[1] It includes fossils from the Tiaojishan Formation and Haifanggou Formation. This spans approximately 165 to 150 million years ago.
Like the Jehol Biota, these deposits are composed of alternating layers of volcanic tuff and sediment, and are considered Lagerstätte. These are some of the best preserved Jurassic fossils in the world, and include many important dinosaur, mammal, salamander, insect and lizard specimens, as well as plants.
- ^ Xu, X., Zhou, Z., Sullivan, C. and Wang, Y., 2017. The Yanliao Biota: a trove of exceptionally preserved Middle-Late Jurassic terrestrial life forms. Terrestrial Conservation Lagerstätten. Dunedin Academic Press, London, pp.131-167.