Crenarchaeota (domain Archaea) The less derived (see APOMORPH) of the two kingdoms of the Archaea, composed principally of extreme thermophiles and psychrophiles. Members of the Crenarchaeota show a greater genetic similarity to those belonging to the domains Eucaryota and Bacteria than do those of the Euryarchaeota.

Crenarchaeota(domain Archaea) The less derived (see apomorph) of the two kingdoms of the Archaea, composed principally of extreme thermophiles and psychrophiles. Members of the Crenarchaeota show a greater genetic similarity to those belonging to the domainsEucaryota and Eubacteria than do those of the Euryarchaeota.

Crenarchaeota (domain Archaea) The less derived (see APOMORPH) of the 2 kingdoms of the Archaea, composed principally of extreme thermophiles and psychrophiles. Members of the Crenarchaeota show a greater genetic similarity to those belonging to the domains Eucarya and Eubacteria than do those of the Euryarchaeota.