Living BeingsLiving 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
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Selected taxon
Methanobrevibacter smithii
Species
Methanobrevibacter smithii profile ↗
- LifeLife
- DomainArchaea
- KingdomMethanobacteriati
- PhylumMethanobacteriota
- ClassMethanobacteria
- OrderMethanobacteriales
- FamilyMethanobacteriaceae
- GenusMethanobrevibacter
- SpeciesMethanobrevibacter smithii
Advanced classification
Complete source lineage, including intermediate ranks. The standard view uses Life and the eight principal ranks.
- cellular organisms cellular root
- Archaea domain
- Methanobacteriati kingdom
- Methanobacteriota phylum
- Methanomada group clade
- Methanobacteria class
- Methanobacteriales order
- Methanobacteriaceae family
- Methanobrevibacter genus
- Methanobrevibacter smithii species