Three truths
- Timed
- Branched off about 3.3 billion years ago · the last 79% of life's story
- Named
- ≈3,000 named living species · 0.2% of all named
- Weighed
- Part of Bacteria (≈70 Gt C), not measured separately.
Bacteria · phylum
Bacillota (Firmicutes)
Bacillota
Living · roughly 3,000 described species
Bacteria long known as Firmicutes. Many have thick cell walls, and some survive harsh conditions as tough spores.
Includes the bacteria that turn milk into yogurt.
Key characteristics
- Mostly Gram-positive
- Some form resistant endospores
- Includes lactic acid bacteria used for yogurt
- Branched off
- About 3.3 billion years ago (approximate)
- Parent lineage
- Terrabacteria
Classification
Sources
- Bacillota (Wikipedia) · Wikipedia
- TimeTree: the timescale of life · TimeTree
- Open Tree of Life · Open Tree of Life
- Tree of Life Web Project · Tree of Life Web Project