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Bacteria Diversify: Major modern phyla

By Michael Alan Prestwood

Sun 22 Feb 2026
Published 3 weeks ago.
Updated 3 weeks ago.
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Bacteria Diversify: Major modern phyla

~1.3 Billion years ago (+/- 200 million)

Major modern phyla diversify

  • Firmicutes

  • Actinobacteria

  • Bacteroidota

  • Continued Proteobacteria expansion

— map / TST —

Michael Alan Prestwood
Author & Natural Philosopher
Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.
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