- Rickettsiales, order Rickettsiales - pleomorphic gram-negative microorganisms
--1 is a kind of animal order
--1 is a member of division Eubacteria
--1 has members:Rickettsiaceae, family Rickettsiaceae; Chlamydiaceae, family Chlamydiaceae
Rickettsiaceae, family Rickettsiaceae; Chlamydiaceae, family Chlamydiaceae |