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Fossil Invertebrates (562)

Fossil Fossil Fossil Fossil Fossil Fossil
ages animal bacteria billion bioimmuration biological bone bryozoan cambrian cell contents da darwin dating earliest evolution evolutionary explanation external faunal formation fossil fossiliferous fossilization fossilized fossils geological geology hole invertebrate jurassic layer leonardo microfossils microscopic minerals mold navigation oldest organism origin original paleontology permineralization phyla plants preservation preserved processes proterozoic pseudofossils rarity relative remains replacement resin retrieved rock scale science sea search shells sites skeletal soft species strata stromatolite structure succession teeth tissue trace tree vinci worm zoology

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