Three truths
- Timed
- Began about 2.9 billion years ago · the last 69% of life's story
- Named
- ≈130 named living species · 0.008% of all named
- Weighed
- Part of Archaea (≈7 Gt C), not measured separately.
Archaea
TACK archaea
Living · roughly 130 described species
The date or placement of this group is still debated.
A full profile for this group has not been written yet. Its place in the tree and its dates are shown below.
- Branched off
- About 3.7 billion years ago (approximate)
- Parent lineage
- Archaea
Child lineages
Classification
Sources
- TimeTree: the timescale of life · TimeTree
- Open Tree of Life · Open Tree of Life
- Tree of Life Web Project · Tree of Life Web Project