Table 7. Current taxonomic status, Known, Mostly unknown and Unknown, for each Phylum or Division.
| Taxonomic status | |||
| Known | Mostly unknown | Unknown | |
| Acoelomorpha | Acidobacteria | Hemichordata | Acanthocephala |
| Bacteroides | Actinobacteria | Heterokontophyta | Amoebozoa |
| Cercozoa | Annelida | Kinorhyncha | Apicomplexa |
| Chaetognatha | Aquificae | Loricifera | Blastocladiomycota |
| Chlorophyta | Arthropoda | Metamonada | Chytridiomycota |
| Choanozoa | Ascomycota | Nematoda | Cycliophora |
| Chordata | Basidiomycota | Nematomorpha | Glomeromycota |
| Ctenophora | Brachiopoda | Nemertea | Heliozoa |
| Cyanobacteria | Ciliophora | Nitrospirae | Microsporidia |
| Dicyemida | Cnidaria | Orthonecta | Oomycota |
| Echinodermata | Crenarchaeota | Phoronida | Opalozoa |
| Ectoprocta/Bryozoa | Cryptophyta | Placozoa | Percolozoa |
| Firmicutes | Deferribacteres | Platyhelminthes | Priapulida |
| Granuloreticulosa | Deinococci | Porifera | Thaumarchaeota |
| Haptophyta | Dinomastigota | Proteobacteria | |
| Labyrinthulomycota | Echiura | Sipuncula | |
| Magnoliopsida | Entoprocta | Tardigrade | |
| Mollusca | Euglenophyta | Thermotogae | |
| Myxozoa | Euryarchaeota | Verrucomicrobia | |
| Radiozoa | Gastrotricha | Zygomycota | |
| Rhodophyta | Glaucophyta | ||
| Rotifera | Gnathostomulida |