Conodonts from the Permian-Triassic boundary beds at the Huangzhishan Section, Zhejiang are systematically studied for the first time, with a total of 16 species assigned to 2 genera.

The carbon isotopes of the marine carbonate rocks of the permian strata and Permian-Triassic boundary were analyzed in Guangyuan and Chongqing of Sichuan province, and in Luodian of Guizhou province.

The study on Permian_Triassic boundary (PTB) in South China has been one of the most important topics among geologists all over the world.

Based on detailed investigation of the sedimentology and conodont faunas on the Permian_Triassic boundary strata of the Meishan section, Zhejiang Province, South China, a new paleoecological model about two important genera Hindeodus and Clarkina (or Neogondolella ) is proposed.

By combining the carbon cycle model with the records of carbonate and organic (kerogen) carbon isotope composition, this paper presents the calculation of the fraction of organic carbon burial (forg) of beds 23-40 at the GSSP of the Permian-Triassic boundary at Meishan, Zhejiang Province.

This is an important discovery in the study of Permian-Triassic Boundary(PTB)sections of the terrestrial and marine-terrestrial transitional facies.

Clay minerals in the clay beds near the Permian/Triassic boundary at Huaying Mountain, eastern Sichuan, China: their types and origin.;