parachlamydia parachlamydia parachlamydia, is a genus of bacteriae belonging to the chlamydiota. species include p. acanthamoeba. parachlamydia scientific classification domain: bacteria phylum: chlamydiota class: chlamydiia order: chlamydiales family: parachlamydiaceae genus: parachlamydiaeverett, bush & andersen 1999 type species parachlamydia acanthamoebaeeverett, bush & andersen 1999 species p. acanthamoebae synonyms "ca. parachlamydia" amann et al. 1997 "ca. parachlamydia acanthamoebae" amann et al. 1997