However, in 2010, five different types of fossilized liverwort spores were found in Argentina, dating to the much earlier Middle Ordovician, around 470 million years ago.
Porén, en 2010, atopáronse en Arxentina cinco tipos de esporas fosilizadas de hepáticas, que databan do período moi anterior Ordovícico medio, arredor de hai 470 millóns de anos.