Key Cambrian explosion events | ||||||||||||||||||||||||||||||
−590 — – −580 — – −570 — – −560 — – −550 — – −540 — – −530 — – −520 — – −510 — – −500 — – −490 — – | "Stage 2" "Stage 3" "Stage 4" "Stage 10" * * * * * * * * * * * * * * * * * * * * * * * * * Baykonur glaciation * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
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