The Mid-Cretaceous (125~90 Ma) was one of the warmest greenhouse climate periods of the Phanerozoic, and was characterized by extraordinary igneous events, oceanic anoxia, biotic turnovers and mass extinctions, normal superchron, and oceanic red beds.

• 白垩纪中期(125~90 Ma)是地质历史中一个极端温室时期,集中出现一系列异常事件。