What do Precambrian Paleozoic Mesozoic and Cenozoic have in common?

Precambrian, Paleozoic, Mesozoic, and Cenozoic are all geological eras that represent significant periods in Earth's history, marked by distinct developments in geology, climate, and life forms. They collectively chart the evolution of the planet from its formation through the emergence of complex life, including the rise and fall of various species. Each era is characterized by unique fossil records and major geological events that shaped the Earth's surface and ecosystems. Together, they provide a framework for understanding the chronological progression of life and geological changes on Earth.