Living Beings / Classification
Taxonomy explorer
Life → Domain → Kingdom → Phylum → Class → Order → Family → Genus → Species. Explore the principal ranks; intermediate clades remain in Advanced classification.
Explore the tree
NCBI Taxonomy · November 5, 2026. Missing ranks leave empty columns. Animalia is the recorded synonym of Metazoa; green plants use Viridiplantae. Full source ancestry is available in Advanced classification.
Browse ecological links ↗Drag to orbit or select a node to inspect it. Depth is used for layout. It does not indicate evolutionary time or distance.
Classification list
Select a node or use the plus sign to open a branch.
Selected taxon
Prochlorococcus marinus
Species
Prochlorococcus marinus profile ↗
- LifeLife
- DomainBacteria
- KingdomBacillati
- PhylumCyanobacteriota
- ClassCyanophyceae
- OrderSynechococcales
- FamilyProchlorococcaceae
- GenusProchlorococcus
- SpeciesProchlorococcus marinus
Advanced classification
Complete source lineage, including intermediate ranks. The standard view uses Life and the eight principal ranks.
- cellular organisms cellular root
- Bacteria domain
- Bacillati kingdom
- Cyanobacteriota/Melainabacteria group clade
- Cyanobacteriota phylum
- Cyanophyceae class
- Synechococcales order
- Prochlorococcaceae family
- Prochlorococcus genus
- Prochlorococcus marinus species