Porphyromonas gingivalis (Coykendall et al., 1980) Shah & Collins, 1988 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 38::128 Classification genus Porphyromonas species Porphyromonas gingivalis Name Synonyms Bacteroides gingivalis Coykendall et al., 1980 Homonyms Porphyromonas gingivalis (Coykendall et al., 1980) Shah & Collins, 1988