Three truths
- Timed
- Branched off about 540 million years ago · the last 13% of life's story
- Named
- No living species
- Weighed
- Extinct: no biomass today.
Eukaryotes · animals · class
Trilobites
Trilobita
Extinct · died out about 252 million years ago, end of the Permian
Extinct marine arthropods with a body divided lengthwise into three lobes. They lasted for nearly 300 million years and disappeared in the end-Permian mass extinction.
They lasted almost 300 million years before the Great Dying ended them.
Key characteristics
- Three-lobed body
- Some of the earliest complex eyes
- Common, well-preserved fossils
- Habitat
- Ancient seas
- Branched off
- About 540 million years ago (approximate)
- Parent lineage
- Arthropods
Classification
Sources
- Trilobite (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