TY - JOUR AU - Yang, Yong AU - Wang, Yingwei AU - Ferguson, David Kay PY - 2020 DA - 2020/02/04 TI - A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China JO - BMC Evolutionary Biology SP - 19 VL - 20 IS - 1 AB - The evolution of the Jehol Biota of western Liaoning in China includes three phases, initiation in the Dabeigou phase, radiation in the Yixian phase, and decline in the Jiufotang phase. Numerous ephedroid macrofossils were reported from the Lower Cretaceous Yixian Formation. However, so far none has been found in the younger Jiufotang Formation (ca. 120.3 Ma) of western Liaoning. SN - 1471-2148 UR - https://doi.org/10.1186/s12862-019-1569-y DO - 10.1186/s12862-019-1569-y ID - Yang2020 ER -