priabonian
1.In the early Priabonian seawater complet ely withdrew from this area.
2.Two new species and one genus of dinoflagellate cysts are described from this Bartonian-Priabonian interval. They are Chateauneufacysta moesica gen.
3.The deposits investigated palynologically were dated as Bartonian-Priabonian of Eocene, yielding abundant dinoflagellate assemblages, which involve Areosphaeridium diktyoplokus, Enneadocysta multicornuta, Batiacasphaera compta, Deflandrea phosphoritica, D.
4.It is conformable with the underlying Zhepure Formation (or Zongpu Formation in Gamba), and unconformable with the overlying Quaternary gravels. The nannofossils NP15 - 16 and NP20 and foraminiferal fossils show that the stratum can be dated as the early Lutetian to Priabonian (ca. 34 Ma) , which means that the marine sedimentary history in southern Tibet ended at ca. 34 Ma.
