pyrolobus pyrolobus pyrolobus is a genus of the pyrodictiaceae. thermophile bacteria pyrolobus scientific classification domain: archaea phylum: thermoproteota class: thermoprotei order: desulfurococcales family: pyrodictiaceae genus: pyrolobusblöch, rachel, burggraf, hafenbradl, jannasch & stetter, 1999 species p. fumarii