"Porphyromonas katsikii" Filioussis et al. 2015 Dataset NCBI Taxonomy Classification phylum Bacteroidota class Bacteroidia order Bacteroidales family Porphyromonadaceae genus Porphyromonas species Porphyromonas katsikii Name Homonyms Porphyromonas katsikii "Porphyromonas katsikii" Filioussis et al. 2015