Time runs left (older) → right (younger) · Hover a card for details
Vast shallow seas; crinoid meadows; first reptiles (358.9-323.2 Ma).
358.90 Ma – 323.20 Ma · 35.70 Ma duration
Axis labels in Ma (millions of years ago) · Click a card for details
Earth › Phanerozoic › Paleozoic › Carboniferous