desulfurococcaceae desulfurococcaceae in taxonomy, the desulfurococcaceae are a family of the disc-shaped anaerobic microorganisms belonging to the order desulfurococcales, in the domain archaea. members of this family are distinguished from the other family (pyrodictiaceae) in the order desulfurococcales by having an optimal growth temperature below 100 °c, rather than above 100 °c, and by being more diverse. several genera of the family have been identified. desulfurococcaceae scientific classification domain: archaea kingdom: proteoarchaeota superphylum: tack group phylum: thermoproteota class: thermoprotei order: sulfolobales family: desulfurococcaceaezillig & stetter 1983 emend. burggraf et al. 1997 genera aeropyrum caldococcus desulfurococcus ignicoccus ignisphaera staphylothermus stetteria sulfophobococcus thermodiscus thermogladius thermosphaera zestosphaera 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_12_2021 53 marker proteins based gtdb 07-rs207 fervidicoccales fervidicoccaceae fervidicoccus "ignicoccaceae" ignicoccus desulfurococcaceae aeropyrum thermodiscus stetteria clade 2 "ignisphaeraceae" ignisphaera pyrodictiaceae desulfurococcaceae thermogladius staphylothermus desulfurococcus sulfophobococcus thermosphaera acidilobales caldisphaeraceae caldisphaera acidilobaceae acidilobus sulfolobales sulfolobaceae desulfurococcales sulfolobales fervidicoccaceae fervidicoccus "ignicoccaceae" ignicoccus acidilobaceae aeropyrum caldisphaera acidilobus pyrodictiaceae desulfurococcaceae staphylothermus thermogladius thermosphaera desulfurococcus ignisphaera zestosphaera sulfolobaceae