The world, Early Cambrian, 540 Ma, Global Paleogeographic Views of Earth History, NAU
The world, Late Cambrian, 514 Ma, PALEOMAP Project
The world, Late Cambrian, 500 Ma, Global Paleogeographic Views of Earth History, NAU
North America, Middle Cambrian, 510 Ma, Paleogeography and Geologic Evolution of North America, NAU
North America, Late Cambrian, 500 Ma, Paleogeography and Geologic Evolution of North America, NAU
North America in the Cambrian Period
North American Cambrian Rocks (violet)
Cambrian, Palæos
Cambrian, Wikipedia
The Cambrian, Paleontology Portal
Geologic Time Table, Seafriends
See general sources above.
Early Cambrian Climate, 540 Ma, PALEOMAP project
Middle and Late Cambrian Climate, 520 Ma, PALEOMAP project
Cambrian explosion, Wikipedia. Cambrian explosion timeline, Wikipedia.
Maotianshan shales, Wikipedia
Burgess Shale, Wikipedia
Orsten fauna, Wikipedia
Cambrian Life Palæos
Cambrian: Life, University of California Museum of Paleontology
The Cambrian Period: An Explosion of Life, Fossil-Facts-and-Finds.com
Cambrian Fossils, Fossil Museum
Cambrian Explosion. Beginning of the Phanerozoic Eon and the Paleozoic Era.
Continents continue to separate after the breakup of Pannotia. Laurentia, Siberia, and Baltica are separate from each other. Gondwana covers the southern part of earth. Laurentia sits "sideways" on the equator.
Petermann Orogeny (mountain building) in Australia.
Delamerian Orogeny in Australia.
Lawn Hill impact event.
Gardnos Crater impact event.
The Avalonia terrane (microcontinent) begins to rift away from Gondwana and eventually forms the Rheic Ocean.
The Iapetus Ocean begins to narrow due to ocean-ocean subduction, especially on its west end. Volcanic islands form at the boundary.
Cambrian-Ordovician extinction events, Wikipedia.
© 2009, Mr. Varner.
