Th
, Thermocladium , Thermococcaceae , Thermococcales , Thermococci , Thermococcus , Thermodiscus , Thermofilaceae , Thermofilum , Thermoplasma , Thermoplasmata , Thermoplasmataceae , Thermoplasmatales , Thermoproteaceae , Thermoproteales , Thermoprotei , Thermoproteus , Thermosphaera