Table 4: Proposed names for candidate phyla and associated superphyla (adapted from Rinke et al. [45]).

SuperphylumCandidate phylumProposed nameEtymology

PVCOP3OmnitrophicaOmnitrophus, eating all Om.ni.tro’phi.ca. A higher taxonomic unit comprising the genus Omnitrophus

FCBSAR406 (Marine Group A)MarinimicrobiaMarinimicrobium, a marine microbe
Ma.ri.ni.mi.cro’.bi.a. A higher taxonomic unit comprising the genus Marinimicrobium
WS3LatescibacteriaLatescibacter a hiding small rod
La.tes.ci.bac.te’ri.a. A higher taxonomic unit comprising the genus Latescibacter
WW1CloacimonetesCloacimonas a unit from a sewer
Clo.a.ci.mo.ne’tes. A higher taxonomic unit comprising the genus Cloacimonas.

OP8AminicenantesAminicenans a (bacterium) degrading amino acids
A.mi.ni.ce.nan’tes. A higher taxonomic unit comprising the genus Aminicenans.

PatescibacteriaOP11MicrogenomatesMicrogenomatus; an organism with a small genome size (~1 Mbp)
A higher taxonomic unit comprising the genus Microgenomatus
OD1ParcubacteriaPaceibacter Pace’s bacterium
norman’i.i. N.L. gen. N. of Norman, referring to Norman Pace (Norman
Richard Pace, Jr. is an American biochemist, Distinguished Professor of
Molecular, Cellular and Developmental Biology at the University of Colorado, and principal investigator at the Pace lab)
-parcus (lat.), thrifty
A higher taxonomic unit comprising the genus Paceibacter
GN02 (BD1-5)Gracilibacteria-gracilis (lat.), slim, slender, slight, meager, simple
A higher taxonomic unit comprising the genus Altimarinus

OP9AtribacteriaA.tri.bac.te’ri.a. N.L. n.
A higher taxonomic unit comprising the genus Caldatribacterium
EM19CalescamantesCa.lesc.a.man’tes. L. v. calesco, to become warm, grow hot; L. v. amo, to love, N.L. n. Calescamantes heat lovers
A higher taxonomic unit comprising the genus Calescibacterium
CD12 (BHI80-139)AerophobetesA.er.o.pho’bus. Gr. n. aer, air; Gr. adj. phobos, fear. N.L. n. Aerophobus, fearing of air (i.e., oxygen).
A higher taxonomic unit comprising the genus Aerophobus
NKB19HydrogenedentesHydrogenedens a hydrogen consumer te.re.phtha’li.cus. N.L. n. (acidum) terephthalicum, terephthalic acid. N.L. adj. terephthalicus, referring to the environment of isolation, a terephthalate reactor.
A higher taxonomic unit comprising the genus Hydrogenedens.
OP1AcetothermiaAcetothermus indicates a vinegar organism living in hot places and ‘‘autotrophicum’’ (au.to.tro’phi.cum. Gr. pron.autos self; Gr. adj. trophikos nursing, tending or feeding; N.L. neut. adj. autotrophicum selfnursing or self-feeding).
A.ce.to.ther’mi.a. A highe taxonomic unit comprising the genus Acetothermum
Oct-Spa1-106FervidibacteriaFer.vi.do.bac’ter. L. adj. fervidus, hot, steaming; -i-connecting vowel; N.L. n. bacter, a rod; N.L. n. Fervidibacter a hot rod. sac.cha’ri. N.L. n. saccharum, sugar; N.L. gen. n. sacchari, of sugar
Fer.vi.di.bac.te’ri.a. A higher taxonomic unit comprising the genus Fervidibacter
DPANNpMC2A384Diapherotrites(Dia.phe.ro.tri’tes. Gr. v. diaphero, to differ; Gr. adj. trítos the third; N.L. n.
Diapherotrites the 3rd HSM group discovered)
A higher taxonomic unit comprising the genus Iainarchaeum
ARMAN groupParvarchaeotaParv.ar.chae’a. A higher taxonomic unit comprising the genera Parvarchaeum and Micrarchaeum
DSEGAenigmarchaeotaAe.nig.mar.chae’a. A higher taxonomic unit comprising the genus Aenigmarchaeum
NanohaloarchaeotaNa.no.ha.lo.ar.chae.o’ta. Gr. n. nanos, dwarf; Gr. n. hal, -los, salt; Gr. adj. archaios, old; N.L. suffix -ota ending to design a phylum; N.L. n. Nanohaloarchaeota, small salt-loving Archaeota. A higher taxonomic unit comprising the genus Nanosalina