The taxonomy of the genus was revised in April 2020 to reclassify species that were originally described as species into 25 genera that comprise phylogenetically related micro-organisms. The species in these 25 genera also share major metabolic traits and generally have a shared ecology. A total of four comb. nov. names, however, were not considered validly published because the valid publication of the corresponding basonyms was published in later issues of the . This communication aims to validly publish the names , , and .

This study was supported by the:
  • Canada Research Chairs
    • Principle Award Recipient: MichaelGaenzle

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