Cambrian explosion
Videos
The Cambrian explosion is an interval of time beginning approximately 538.8 million years ago in the Cambrian period of the early Paleozoic, when a sudden radiation of complex life occurred and practi
Rusophycus and other trace fossils from the Gog Group, Middle Cambrian, Lake Louise, Alberta, Canada
Stromatolites (Pika Formation, Middle Cambrian) near Helen Lake, Banff National Park, Canada
Modern stromatolites in Hamelin Pool Marine Nature Reserve, Western Australia
An Ediacaran trace fossil, made when an organism burrowed below a microbial mat
Cambrian
Videos
The Cambrian is the first geological period of the Paleozoic Era and the Phanerozoic Eon. The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma to the beginni
Cambrian explosion
…explosion (also known as the Cambrian radiation or Cambrian diversification) is an interval of time beginning approximately 538.8 million years ago in the Cambrian period of the early Paleozoic, when a sudden radiation of complex life occurred and practically all major animal phyla started appearing in the fossil…
Ediacaran–Cambrian boundary section at Fortune Head, Newfoundland, GSSP
Diorama of the Burgess Shale Biota
Archeocyathids from the Poleta formation in the Death Valley area