Biological taxa that first appeared during the Hauterivian Age, the geologic time between 132.9 and 129.4 million years ago during the Early Cretaceous era of the Cretaceous Period, Mesozoic Era.
Subcategories
This category has the following 2 subcategories, out of 2 total.
E
G
Pages in category "Hauterivian first appearances"
The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes.