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History
Timeline of Early Prehistory
| 13.7 billion BC |
Big Bang |
| 4.6 billion BC |
Earth |
| 4.5 billion BC |
Moon forms |
| 4 billion BC |
Life |
| 2 billion BC |
Eukaryotes |
| 1 billion BC |
Rodina breaks into Gondwana and Laurasia |
| 600 million BC |
Complex multicellular life, Cambrian explosion |
| 540 million BC |
Laurasia splits into Laurentia, Baltica, and
Siberia |
| 530 million BC |
Fish, vertebrates |
| 400 million BC |
Ozone layer forms |
| 300 million BC |
Baltica and Siberia collide to form Urals |
| 300 million BC |
Pangaea (recombination of plates), life on land |
| 260 million BC |
Suminia, tree dwelling Synapsid (proto-mammal) |
| 250 million BC |
Permian mass extinction (95% of life), Triassic begins |
| 230 million BC |
Dinosaurs |
| 200 million BC |
Mammals, Jurassic begins |
| 180 million BC |
Pangaea breaks into Laurasia, Gondwana |
| 160 million BC |
S America, India/Australia/Antarctica separate
from Africa |
| 100 million BC |
Laurentia (N America) and Eurasia separate |
| 65 million BC |
6 mile meteor hits Yucatan Penisula coast
forming Chicxulub crater; vulcanism; Dionsaurs extinct (and 75% of life) |
| 60 million BC |
Primates |
| 45 million BC |
India crashes into Asia forming Himalayas |
| 30 million BC |
N America and South America collide |
| 2 million BC |
Ice ages, early human ancestors |
| 790,000 BC |
Homo Erectus, use of fire |
| 300,000 BC |
Homo Sapiens |
| 160,000 BC |
Homo Sapiens Sapiens |
| 80,000 BC |
Out of Africa (our ancestors) |
| 75,000 BC |
Toba volcanic eruption |
| 30,000 BC |
Cro-Magnons in Europe |
| 29,000 BC |
Neanderthals extinct |
| 23,000 BC |
Colonization of N America |
| 16,000 BC |
Last Glacial Maximum |
| 10,000 BC |
End of last Ice Age |
Major Earth Plates
- Laurentian
- Eurasian - Baltic - Cimmerian - Lhasa
- African
- Australian
- South American
- Pacific
- Indian
- Antarctica
- Arabian
- Filipino
- Carribean
- Scotia
- Nazca (Farallon)
- Cocos (Farallon)
- Juan de Fuca (Farallon)

Outline of Earth History
Precambrian: 4.6 billion BC - 542 million BC
Paleozoic era
a. Cambrian period
b. Silurian
c. Ordovician
d. Devonian
e. Carboniferous / Mississippian
f. Carboniferous / Pennsylvanian
g. Permian
Mesozoic era
a. Triassic period
b. Jurassic
c. Cretaceous
Cenozoic era
a. Paleocene epoch
b. Eocene
c. Oligocene
d. Miocene
e. Pliocene
f. Pleistocene
g. Holocene
Biology - Life
Kingdoms
- Animalia
- Plantae
- Fungi
- Protista
- Archaea
- Bacteria
Major Animal Phyla - Class - Order
- Chordata
- Arthropoda
- Insecta
- Arachnida
- Acarina (mites, ticks)
- Araneae (spiders)
- Scorpiones
- Malacostraca
- Decapoda (crab, lobster, shrimp)
- Mollusca
- Bivalvia
- Gastropoda
- Cephalopoda
- Octopoda
- Teuthida (squid)
- Sepiida (cuttlefish)
- Nautilida
- Annelida
- Cnidaria
- Brachiopoda
- Echinodermata
- Porifera
Chordata - Craniata -
Vertebrata
Jawless fish
Gnathostomata
Actinopterigii (finned fish)
Sarcopterigii (lobe-finned fish)
Tetrapoda
Amphibia
Amniota
Sauropsida
Reptilia
Aves
Synapsida (Theropsida)
Mammalia
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