The new global Middle Ordovician Dapingian Stage defined in the Huanghuachang section, South China

Key Points

• This exploration defines the new Dapingian Stage with clear stratigraphic layers in the Huanghuachang section, demonstrating its geological importance.
• Key evidence includes distinct stratigraphic markers that characterize the Dapingian Stage's unique features and its paleoenvironment.
• Analysis of geological formations reveals crucial insights into Ordovician sea-level changes and biodiversity during this period.
• This work highlights the need for global agreement on geological stages to enhance understanding of Earth's history.

Abstract