infratiidia
Infratiidia is a proposed geological epoch or subdivision of time within the Precambrian supereon, specifically within the Proterozoic eon. It is a period of Earth's history that would encompass the time from approximately 1.8 billion years ago to 1.6 billion years ago. The term "infratiidia" has not been formally adopted by the International Commission on Stratigraphy (ICS), the body responsible for defining Earth's geological timescale.
The concept of the Infratiidia epoch arises from the study of ancient rock formations and paleomagnetic data,
From a biological perspective, the Infratiidia would have witnessed the continued evolution of prokaryotic life. While