Time runs left (older) → right (younger) · Hover a card for details
Jawed fishes diversify; early arachnids on land (427.4-423 Ma).
427.40 Ma – 423.00 Ma · 4.40 Ma duration
Axis labels in Ma (millions of years ago) · Click a card for details
Earth › Phanerozoic › Paleozoic › Silurian