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?
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.