Protalphadon fossil map
Where fossils of Protalphadon have been found, shown on the Earth as it looked about 66 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 66 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Early mammals |
|---|---|
| Lived | 100.5–66 million years ago (Cenomanian to Maastrichtian) |
| Periods | Cretaceous |
| Named by | Cifelli 1990 |
| Fossil records | 34 occurrences at 15 locations (PBDB) |
| Found in | United States |
| Rock formations | Lance, Hell Creek, Wahweap, Mesaverde, Ferris, Naturita |
About Protalphadon
Protalphadon is a genus of small mammal from the Late Cretaceous. Its fossils are found in Utah, Montana, New Jersey, South Dakota, Wyoming and Colorado. Originally the genus was assigned to Alphadon.
Text in “About” is quoted from the Wikipedia article Protalphadon (revision 1216447224), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q21075076.
