Related terms:
permian
hotspot
crater
fossils
cambrian
amphibian
arthropods
trace fossils
extinction
burgess shale
early cambrian
middle cambrian
years ago
biodiversity
terrestrial
fossil record
biodiversity loss
extinction event
conservation ethic
ecosystem services
biological diversity
conservation biology
global warming
conservation biologists
million years ago
north america
Wikipedia sources:
Impact event
Trilobite
Megafauna
Permian
Biodiversity
Conservation biology
Cambrian explosion
Context for words:
mass
extinction
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