A New Clue for the Late Eocene Freshwater Ecosystem of Central China Evidenced by New Fossils of Trapa L. and Hemitrapa Miki (Lythraceae)
Both Trapa L.and the extinct Hemitrapa Miki are aquatic plants in the family Lythraceae, with abundant fossil records in Eurasia and North America in the Cenozoic.However, documented materials are mainly based on fruit and pollen grains without reliable leaf fossils.Here, we report fossil leaves, fruit, and roots of Trapa and fruit of Hemitrapa fro