halorubraceae halorubraceae halorubraceae is a family of halophilic, chemoorganotrophic or heterotrophic archaea within the order haloferacales. the type genus of this family is halorubrum. its biochemical characteristics are the same as the order haloferacales. halorubraceae scientific classification domain: archaea phylum: euryarchaeota class: halobacteria order: haloferacales family: halorubraceaegupta et al. 2016 genera halalkaliarchaeum "halalkalirubrum" halobaculum halobium halohasta halolamina halonotius halopenitus halorubrum salinigranum the name halorubraceae is derived from the latin term halorubrum, referring to the type genus of the family and the suffix "-ceae," an ending used to denote a family. together, halorubraceae refers to a family whose nomenclatural type is the genus halorubrum. current taxonomy and molecular signatures as of 2021, halorubraceae contains nine validly published genera. this family can be distinguished from other halobacteria by the presence of four conserved signature proteins (csps). phylogeny the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn) and national center for biotechnology information (ncbi). 16s rrna-based ltp_01_2022 53 marker proteins based gtdb 07-rs207 haloferacales halobaculum * salinigranum cui & zhang 2014 * halolamina * halohasta * halonotius * haloferax halopelagius halogeometricum halobellus (incl. haloquadratum) halobium * halegenticoccus haloprofundus halogranum haloplanus halalkaliarchaeum * halopenitus * haloparvum halorubrum * haloferacales haloferacaceae halorubraceae halobaculum oren et al. 1995 halolamina cui et al. 2011 "halalkalirubrum" zuo et al. 2021 halohasta mou et al. 2013 halonotius burns et al. 2010 halalkaliarchaeum sorokin et al. 2019 halopenitus amoozegar et al. 2012 haloparvum chen et al. 2016 halorubrum mcgenity & grant 1996 note: * halorubraceae