A member of one of the three domains of life, formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. Archaea are characterized by: 1) the presence of characteristic tRNAs and ribosomal RNAs; 2) the absence of peptidoglycan cell walls; 3) the presence of ether-linked lipids built from branched-chain subunits; and 4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. Thermoproteales; Methanospirillum; Haloferax volcanii.
(Slot-Value-Type Archaeon Component Incoherent)
(=> (Archaeon ?Self)
(Exists (?A)
(And (Constituent-Material ?Self ?A)
(Ether-Linked-Lipid ?A)
(Exists (?B)
(And (Component ?A ?B)
(Branched-Chain-Subunit ?B))))))