Age estimates for the emergence of oxygenic photosynthesis derived from molecular clock analyses reach back to the Archean, substantially predating geochemical evidence of persistent, irreversible atmospheric oxygenation following the Great […]
Palaeoclimatology
Posted inBiosignatures & Paleobiology, Fossils & Paleontology, Origin & Evolution of Life, Press Release
Fossils Reveal New Clues About Early Ocean Life On Earth
More than 514 million years ago, long before dinosaurs roamed the Earth, sponge-like creatures called archaeocyathids were already busy building some of the planet’s earliest reefs — just north of […]