Chlamydia pneumoniae Grayston et al., 1989 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 39::88 Classification genus Chlamydia species Chlamydophila pneumoniae Name Homonyms Chlamydia pneumoniae Grayston et al., 1989