> Does anyone know? Is the claim that this is definitely bacteria, and not Archaea? Shouldn't really be either; this should be quite a bit older than Last Univ

> Does anyone know? Is the claim that this is definitely bacteria, and not Archaea? Shouldn't really be either; this should be quite a bit older than Last Universal Common Ancestor and hence older than the Bacteria/Archaea split. But I don't actually understand what precisely was found so can't say.