3:30 |
Archean granite boulder (diamagtite erratic) in 2.4 billion year old rock (near Lake Huron, Canada) |
4:30 | Snowball Earth twice in history, shown by
magnetic lava (Namibia) |
14:30 | Don Berryhill collects
methane gas
from Archaea , which may have kept Earth warm. (Loblolly Bay, Okefenokee Swamp) |
18:00 | Photosynthetic cyanobacteria produce oxygen, eliminatin methane, leading to global glaciation |
21:30 | Viggo Marteinsson investigates thermophiles in hot springs (Iceland) |
22:30 |
Cyanobacteria |
24:00 |
Choanoflagellate |
25:00 |
Pteridinium fossil 600 million years old (Namibia) |
27:00 | Edicaran fossils
Giorgia
(13) Kimberella (Siberia) 25 |
28:40 |
Vertebrate fossil 560 million years old (Australia 2003) |
29:40 |
Oxygen oxidizes manganese (manganese deposit in kalahari, South Africa) |
32:20 |
Oxygen levels rose after the 2 snowball events |
33:30 |
Volcanic eruptions may have replenished carbon dioxide in the air |
39:30 |
Cells can secrete collagen (which contains oxygen and is formed with 2 amino acids not in the genetic code) to cluster together, forming
tissue-like skin |
44:50 |
Arandaspis oldest fish with a backbone, no fins or jaws |
45:50 |
Trilobite and
chain coral fossils in quarry from Iapetus Sea vanished 400 million years ago (Shropshire, England) |
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