Faculty;
of;
Earth;
Sciences,;
China;
University;
of;
Geosciences,;
Wuhan;
430074,;
China;
Geological;
Institute,;
Copenhagen;
University,;
Oster;
Voldgade;
10,;
DK-1350;
Copenhage,;
Denmark;
Faculty;
of;
Earth;
Sciences,;
China;
University;
of;
Geosciences,;
Wuhan;
430074,;
China;
Faculty;
of;
Earth;
Sciences,;
China;
University;
of;
Geosciences,;
Wuhan;
430074,;
China;
Lower; Triassic,; Induan-Olenekian; boundary,; GSSP,; candidate,; Chaohu; of; China.;