Zurhen Ul, Qinghai-Tibet Plateau yields Ar Ar ages of (40 91±1 18) Ma, (41 07±0 80) Ma,( 42 00±1 31) Ma and (39 00±2 06) Ma which suggests a large-scale volcanism in the research area in the Middle Eocene Epoch.

On Metasequoia in Eocene Age from Liaoning Province of Northeast China;

Provenance Analysis of Late Cretaceous-Early Eocene Sandstones in the Sangdanlin Area, Southern Tibet;

Quantitative Reconstruction of the Eocene Palaeoclimate in the Fushun Basin,Liaoning Province;

They represent the first records of the Pri- mates in Late Eocene of Nei Mongol.

All of them represent the first records of their kinds in Late Eocene of Nei Mongol.

They represent the first cricetids ever found in Late Eocene of Nei Mongol.

This animal found in Yuanqu Basin not only extends its geographical distribution but also increasesYuanqu Fauna s composition and provides new evidence that Hedi Formation is ofSharamurunian, late Middle Eocene in age.

Members of the subfamily Ischyromyinae, the most derived of the Paleogene rodent family Ischyromyidae, have previously been reported only from North America,where they are relatively abundant in deposits ranging in age from lare Middle Eocene through Middle Oligocene.