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Yang, Lin and Ferguson, 2018 Yixian Formation, China, Early Cretaceous (Aptian)
* Prognetella Krassilov et Bugdaeva, 1999 Yixian Formation, China, Early Cretaceous (Aptian) (initially interpreted as an angiosperm)
* Chengia Yang, Lin & Wang, 2013, Yixian Formation, China, Early Cretaceous (Aptian)
* Chaoyangia Duan, 1998 Yixian Formation, China, Early Cretaceous (Aptian)

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