An Intriguing Half Leaf from the Middle Jurassic of China

. Abstract Most leaves in angiosperms have reticulate venation, but not all leaves with reticulate venation belong to angiosperms. Although angiosperms flowers have been reported in the Jurassic, leaves similar to angiosperms are lacking in the Jurassic. Here we report an unnamed fossil leaf from the Middle Jurassic Yan’an Formation of Ningxia, China. Although its partial preservation does not allow us to determine the affinity of the fossil, its occurrence underscores the probablity that future digging may uncover angiosperm leaves in the Jurassic.