Paleoflora of the Messel Formation
This is an overview of the paleoflora of the Eocene Messel Formation as explored by the Messel Pit excavations in Germany. A former quarry and now UNESCO World Heritage Site, the Messel Formation preserves what lived in and around a meromictic lake surrounded by a paratropical rainforest during the latest early to earliest middle Eocene, approximately 47 Ma.
Source: Wikipedia — Paleoflora of the Messel Formation (CC BY-SA 4.0)