Woese

Phylogenetic tree based on Woese et al. rRNA analysis Acceptance of the validity of Woese's phylogenetically valid classification was a slow process.

Margulis and Woese were something of opposite characters.

Although the primacy of the Eubacteria-Archaea divide has been questioned, it has been upheld by subsequent research. citation There is no consensus on how many kingdoms exist in the classification scheme proposed by Woese.

Based on such RNA studies, Carl Woese thought life could be divided into three large divisions and referred to them as the "three primary kingdom" model or "urkingdom" model. citation In 1990, the name "domain" was proposed for the highest rank.

Having defined Archaea as a new "urkingdom" (later domain ) which were neither bacteria nor eukaryotes, Woese redrew the taxonomic tree.

However, in 1990 the microbiologist Carl Woese proposed the three-domain system that divided living things into bacteria, archaea and eukaryotes. citation Archaea differ from bacteria in both their genetics and biochemistry.

Woese and Fox discovered a kind of microbial life which they called the “archaebacteria” ( Archaea ).