The researchers found hundreds of folds that are present across all superkingdoms
of life and in all types of viruses, which suggests that they came from an ancient ancestor of all life forms, Caetano-Anolles said.
Day by day the evidence accumulated, and soon it was abundantly clear to Woese that all life on Earth could be divided into three primary superkingdoms
, or "domains," as they are now called: Bacteria, Archaea, and Eukarya (the last being the crowded home of the former kingdoms of plants, animals, fungi, and protozoa).
6; Roche), reads were classified into different superkingdoms
Each of these three types of semiosis presuppose a living being, not necessarily a human being, nor any organism living in one of the superkingdoms
, but even a simple cell.
His newly proposed classification disposes of the traditional Prokaryotic and Eukaryotic superkingdoms
, which he says unfairly granted Eukaryotes evolutionary seniority.