Category:Late Ordovician first appearances

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This category includes biological taxa of rank more inclusive than genus that evolved during the Late Ordovician epoch of geologic time, between 458.4 and 4443.8 million years ago, as well as genera and species that evolved during this time and persisted across multiple geological epochs.

See also the preceding Category:Middle Ordovician first appearances and the succeeding Category:Llandovery first appearances

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