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-
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513 million years ago
(max)
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-
-
-
-
-
-
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501 million years ago
(min)
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number of fossil occurrences
-
percent of marine species currently described
-
-
percent synonyms among marine species
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-
-
-
total species (expert opinion)
-
-
total unknown marine species
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-
-
-
-
undescribed marine species present in museum collections
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undiscovered marine morphospecies
-
-
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