The kingdom protista,
| Part 14 Gram Positive Cocci |
| Family I Micrococcaceae |
| Genus I Micrococcus |
| Genus II Staphylococcus |
| Genus III Planococcus |
| Family II Streptococaceae |
| Genus I Streptococcus |
| Genus II Leuconostoc |
| Genus III Pediococcus |
| Genus IV Aerococcus |
| Genus V Gemella |
| Family III Peptococcaceae |
| Genus I Peptococcus |
| Genus II Peptostreptococcus |
| Genus III Ruminococcus |
| Genus IV Sarcina |