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Burgess Shale fossils
Cambrian genus extinctions
Fossil taxa described in 1912
Taxa named by Charles Doolittle Walcott
Burgess Shale animals
Cambrian arthropods
Megacheira
Megacheira genera

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Yohoia

Eurypterid

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Sanctacaris

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Marrella

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Opabinia

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Chelicerata

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