Topic summary
Archaeon
Extracted from the Wikipedia article Archaea.
Archaea ( ) is a domain of organisms. Traditionally, Archaea included only its prokaryotic members, but has since been found to be paraphyletic, as eukaryotes are known to have evolved from archaea. Even though the domain Archaea cladistically includes eukaryotes, the term archaea (sing. archaeon ; from Ancient Greek ἀρχαῖονarkhaîon 'ancient') in English still generally refers specifically to prokaryotic members of Archaea.