Category:Late Ordovician first appearances
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Here is a list of articles in the category Late Ordovician first appearances of the Biology portal. 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.
Pages in category "Late Ordovician first appearances"
The following 34 pages are in this category, out of 34 total.