Related terms:
hadean
opabinia
cnidaria
fossils
cambrian
ediacaran
geochemical
arthropods
ordovician
body fossils
stromatolite
giant impact
microbial mat
trace fossils
burgess shale
early cambrian
vertebrates
ediacara biota
multicellular
fossil record
mass extinctions
common ancestor
evolutionary
plate tectonics
extinction event
debate about whether
million years ago
carbon dioxide
Wikipedia sources:
Cambrian explosion
Paleontology
Opabinia
History of the Earth
Evolution of the eye
Rare Earth hypothesis
Evolutionary history of life
Context for words:
cambrian
explosion
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