Category:Cretaceous first appearances
Here is a list of articles in the category Cretaceous first appearances of the Biology portal. Biological taxa that first appeared during the Cretaceous period, the geologic time period between 145 and 66 million years ago.
Pages in category "Cretaceous first appearances"
The following 3 pages are in this category, out of 3 total.
Mathematics
Organizations
Books
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