Crypto-endo-liths are examples of organisms in this classification.
Methyl coenzyme-M reductase and dissimilatory sulfite reductase are coded for by functional marker genes used to quantify diversity among these organisms. These organisms' S-layers can have a hydrophobic anchor or bind to methanochondroitin (meh-THAN-oh-con-DROY-tin). Their cell walls have beta-1,3 linkages between components, one of which is N-Acetyl-talos-amin-uronic acid (en-UH-see-tull-tuh-LOS-a-meen-your-ON-ick-acid). These organisms also use L-glycerol in their cell membranes, which also contain isoprenes linked by (*) ethers. Crypto-endo-liths are examples of organisms in this classification. The 16S ribosomal RNA of these organisms surprisingly resembles those eukaryotes more than originally hypothesized. For 10 points, name this taxon of ancient extremophiles.
Methyl coenzyme-M reductase and dissimilatory sulfite reductase are coded for by functional marker genes used to quantify diversity among these organisms.
archaea or archaebacteria [prompt on "methanogen"; do not accept or prompt on "bacteria"]