The geologic eon characterized by the proliferation of complex, multicellular life is derived from Greek roots signifying apparent or visible life. This span of time marks a significant shift in Earth’s history, distinguished by the evolution and diversification of organisms that left readily observable fossil records. The appearance of diverse animal and plant life forms defines this period.
This particular division of geologic time is critical to understanding the evolution of modern ecosystems and the development of biodiversity. Its start is loosely defined, reflecting the challenges in precisely pinpointing the first appearance of complex life. The extensive fossil record from this era provides invaluable insights into evolutionary processes and past environmental conditions.
