Oldest fossils ever found show life on Earth began before 3.5 billion years ago
How Early Life Thrived Without Oxygen - BioTechniques
Fossil - Wikipedia
3.5-Billion-Year-Old Fossil Microbial Community Found | Live Science
BBC News | Sci/Tech | The bacteria that changed the Earth
Cyanobacteria evolution: Insight from the fossil record - ScienceDirect
Prokaryotes
Cyanobacteria evolution: Insight from the fossil record - ScienceDirect
Fossil Record of the Cyanobacteria
Applied Math and Science Education Repository - Bacteria: Fossil Record
Chapter 26. Bacteria and Archaea
12.1 The Fossil Record
Fossil Record of the Cyanobacteria
New technique pinpoints milestones in the evolution of bacteria | MIT News | Massachusetts Institute of Technology
Fossil record | Definition & Facts | Britannica
How Did Fragile Early Microbes Become Fossils? - Eos
Sponges identified as oldest animal life
World's oldest fossils unearthed | UCL News - UCL – University College London
Ancient bacteria leave behind fossils, too! – Sciworthy
Fossil Record of the Bacteria
FOSSIL RECORD FAILS TO DEFEND EVOLUTION – Evolution is a Myth
Fossil Record of the Cyanobacteria
Stromatolites
