III. Ecosmos: A Revolutionary Fertile, Habitable, Solar-Bioplanet, Incubator Lifescape

3. Earth Alive: An Ovular GaiaSphere Sustains Her/His Own Viability

Zhang, Tan, et al. Astronomically calibrating early Ediacaran evolution. Nature Communications. 16/3049, 2025. Into the mid 2020s, Chengdu University of Technology, China University of Geosciences, Beijing, University of Liege, Belgium paleontologists can now more clearly reconstruct how life began to get its act together in this crucial, transitional phase.

The current chrono-stratigraphic basis for the early Ediacaran Period hampers a full understanding of environmental upheavals and evolutionary innovations. Here, we establish a high-resolution astro-chronological method over ~57.6 million years of this age. The integrated chronology refines the timeline for Ediacaran biota to reveal that ecosystems increased in complexity over multi-million-year timescales while global taxonomic diversity remained relatively stable. (Excerpts)

The Ediacaran Era is a geological period of the Neoproterozoic that spans 96 million years from the end of the Cryogenian Period at 635 Mya to the beginning of the Cambrian Period at 538.8 Mya. It is the last period of the Proterozoic Eon and a "Precambrian supereon" and marks the start of the Phanerozoic Eon, where fossil evidence becomes common.

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