caldilinea aerophila caldilinea aerophila caldilinea aerophila is a species of filamentous thermophilic bacteria, and the type species of its genus. it is gram-negative, non-spore-forming, with type strain stl-6-o1t (=jcm 11388t =dsm 14525t). caldilinea aerophila scientific classification domain: bacteria phylum: chloroflexota class: caldilineae order: caldilineales family: caldilineaceae genus: caldilinea species: c. aerophila binomial name caldilinea aerophilasekiguchi et al. 2003