- : ~54.5
- :
- : Harwich Formation (Blackheath Beds)
- : Estuary and coastal swamp leading into a shallow sea
- : Shark teeth, bony fish, molluscs (gastropods and bivalves), plant seeds and fruits, crocodilian remains, early mammals, birds
- : Mangrove palm swamps, estuarine mollusc beds, lush tropical rainforest, calm shallow marine waters nearby
