Zitai Formation

The Zitai or Zhitai Formation^[1][2] is a geological sequence of Middle Ordovician origin, that occurs along the southeastern edge of the Yangtze Platform in southern China. It is a purple-red limestone with a few interspersed yellow-green shale beds. It contains a fossil fauna dominated by trilobites and nautiloids.

Zitai Formation
Stratigraphic range: Floian-Dapingian ~478–468 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Limestone
Location
Coordinates	30.3°N 117.4°E / 30.3; 117.4
Approximate paleocoordinates	8.7°N 134.3°W / 8.7; -134.3
Region	Anhui, Hubei, Hunan
Country	China
Zitai Formation (China)