Period Cambrian Period

Time runs left (older) → right (younger) · Hover a card for details

The Cambrian explosion (538-485 Ma).

538.80 Ma – 485.40 Ma · 53.40 Ma duration

Axis labels in Ma (millions of years ago) · Click a card for details

Cambrian Period 1

538.8 Ma – 521 Ma Cambrian Explosion Most animal body plans appear Rapid diversification of complex multicellular life with hard body parts.