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Gateway to the Paleobiology Database

First appearance calculation form

Scientific name:
Common name:
Excluded subtaxa:
You may enter one or more scientific names.
Taxonomic precision of IDs:
Restricting the search to precise IDs is recommended.
Use type specimens only?
If yes, the type specimen must consist of:
Type specimen body part data are highly complete only for selected vertebrate groups with Online Systematics Archives, such as terrestrial dinosaurs and whales.
Include trace fossils?
Continent:
Africa Antarctica Asia Europe
North America South America Australia
Geographic resolution:
Stratigraphic resolution:
Precision of collection's age estimate: Myr
Minimum age of included collections: Myr
Because the quality of the fossil record often improves going forward to the Recent, choosing a high minimum is recommended.