nanohaloarchaea nanohaloarchaea nanohaloarchaea is a clade of diminutive archaea with small genomes and limited metabolic capabilities, belonging to the dpann archaea. they are ubiquitous in hypersaline habitats, which they share with the extremely halophilic haloarchaea. nanohaloarchaea scientific classification domain: archaea superphylum: dpann phylum: "nanohaloarchaeota" class: "nanohaloarchaea"(sic) narasingarao et al. 2012 order: "nanohalarchaeales" family: "nanohalarchaeaceae" genus "candidatus nanohalarchaeum" corrig. hamm et al. 2019 synonyms "nanohalarchaeia" corrig. narasingarao et al. 2012 nanohaloarchaea were first identified from metagenomic data as a class of uncultivated halophilic archaea composed of 6 clades and were subsequently placed in the phylum nanohaloarchaeota within the diapherotrites, parvarchaeota, aenigmarchaeota, nanoarchaeota, nanohaloarchaeota (dpann) superphylum. however the phylogenetic position of nanohaloarchaea is still highly debated, being alternatively proposed as the sister-lineage of haloarchaea or a member of the dpann super-phylum. the lineage has since been identified in data from a range of hypersaline environments including: australian thalassohaline lake, spanish saltern, russian soda brine, californian saltern, and chilean halite taxonomy the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn) and national center for biotechnology information (ncbi). phylogeny of nanohalobiaceae "candidatus nanosalinicola" "candidatus nanosalina" "candidatus nanohalobium" phylum "nanohaloarchaeota" corrig. rinke et al. 2013 class "nanohaloarchaeia" corrig. narasingarao et al. 2012 order "nanohaloarchaeales" family "nanohaloarchaeaceae" genus ?"candidatus nanohaloarchaeum" corrig. hamm et al. 2019 "ca. n. antarcticum" corrig. hamm et al. 2019 class "nanohalobiia" corrig. la cono et al. 2020 order "nanohalobiales" la cono et al. 2020 family "nanohalobiaceae" la cono et al. 2020 genus ?"candidatus haloredivivus" ghai et al. 2011 genus ?"candidatus nanopetraeus" corrig. crits‐christoph et al. 2016 genus "candidatus nanohalobium" la cono et al. 2020 "ca. n. constans" la cono et al. 2020 genus "candidatus nanosalina" narasingarao et al. 2012 genus "candidatus nanosalinicola" corrig. narasingarao et al. 2012