The Middle Darriwilian Isotopic Carbon Excursion (MDICE) is a globally recognized Ordovician carbon isotope event, but its records in the South China Block (SCB) are commonly incomplete due to regional stratigraphic hiatus. This study presents an integrated analysis of conodont biostratigraphy, carbon isotope stratigraphy, and microfacies analysis from a stratigraphically continuous succession spanning the Kuniutan to lower Pa...

The Xiangshuyuan Formation (middle Rhuddanian to middle Aeronian stages of the Llandovery Series, lower Silurian) records a shelly fauna representing recovery after the end‐Ordovician mass extinction in a well‐oxygenated shallow carbonate platform of the Upper Yangtze region, South China Block. Carbon isotope stratigraphy is documented from limestone sequences of the formation at the Qiankou section, northeast Guizhou. The ear...

Ordovician sequences at Huanghuachang, northern Yichang City of Hubei Province, Central China, are representative of an outer‐shelf setting of the Yangtze epicontinental sea, South China Block. Continuous drill cores of the Well Yihuang 1 penetrated the Upper Ordovician units of the Miaopo, Pagoda, Linhsiang, Wufeng, and Kuanyinchiao Formations in ascending order. Such a continuous succession gives valuable insights into envir...