Brief SummaryRead full entry
Fossil speciesrecent & fossil
28 other items
92009 other items
763 other items
|undescribed species present in museum collections||
|first appearance (older bound)||530.0 million years ago|
|first appearance (younger bound)||520.0 million years ago|
|last appearance (older bound)||0.0117 million years ago|
|last appearance (younger bound)||0 million years ago|
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