Period Carboniferous Period

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

Coal swamp forests; first reptiles (359-299 Ma).

358.90 Ma – 298.90 Ma · 60.00 Ma duration

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

Carboniferous Period 1

312 Ma First Reptiles Amniote egg evolves Evolution of the amniotic egg frees vertebrates from dependency on water.