General

• Animals: Rare fossils (850 MYA)
  Multicellular organism fossils (700 MYA)
  Complete rise of multicellular organisms, worm-like creatures, sponges and early trilobites (630 - 600 MYA)
  Fossils of the Ediacaran - jellyfish, Tribrachidum and Dickinsonia (580 MYA)
  Presence of all major animal phyla - chordates exist (542 MYA)
  Explosion of early shelled life (542 MYA)
  First vertebrates (fish) form (500 MYA)
• Chronology: Start of Cryogenian Period of Neo-proterozoic Era (850 MYA)
  Last of the Neo-Proterozoic Era - the Ediacaran Period (630 MYA)
  End of Precambrian super-Eon - start of Phanerozoic Eon and Cambrian period (542 MYA) Tommotian stage of Cambrian - shelled animals appear (534 MYA)
  Start of middle Cambrian Epoch with increased fauna (513 MYA)
  Start of Furongian Epoch (latest) of Cambrian period (501 MYA)
• Climate: Start of Stuartian-Varangian ice age (950 MYA)
  Possible "Snowball Earth" period (850 MYA)
  Mass extinction of 70% of dominant sea plants due to global glaciation (650 MYA)
  End of Suartian-Varangian ice age (570 MYA)
• Earth: Earth's day increases to 18 hours long (900 MYA)
  Supercontinent Rodinia breaks up (850 MYA)
  Breakup of Rodinia and formation of supercontinent Pannotia - end of last magnetic reversal (750 MYA)
  Pannotia (Pre-Pangaea) fragments into laurasia and Gondwana (550 MYA)
  Solar brighness at 94% (534 MYA)
  Fossilization of Chengjiang site (528-526 MYA)
  Fossilization of Burgess Shale (517-515 MYA)

South

• Meteor impact in South Australia (590 MYA)