TuronianCampanian

The Turonian-Campanian is a stage in the geologic timescale, specifically within the Late Cretaceous period. It spans from approximately 93.9 million years ago to 72.1 million years ago. This stage is named after the towns of Turon and Campan in France, where the stratigraphic units were first identified.

The Turonian-Campanian is characterized by significant geological and biological changes. The Turonian age is marked by the deposition of the Turonian chalk, a type of limestone, which is widely distributed across Europe and North Africa. The Campanian age, on the other hand, is known for the Campanian chalk, which is also found in similar regions. These chalk formations are important for understanding the paleoclimate and paleoenvironment of the Late Cretaceous.

During the Turonian-Campanian, the Earth experienced a period of relative stability, with a warm and humid climate. This climate supported diverse ecosystems, including lush forests and extensive marine environments. The stage is also notable for the presence of numerous dinosaur species, although the exact diversity and distribution of these animals are still subjects of ongoing research.

The boundary between the Turonian and Campanian stages is marked by a significant extinction event, known as the Turonian-Campanian boundary event. This event resulted in the loss of many marine species, although the exact causes and extent of this extinction are not fully understood.

The Turonian-Campanian stage is an important interval in the study of Earth's history, providing valuable insights into the evolution of life and the changing conditions of the planet during the Late Cretaceous.