Procastoroides fossil map
Where fossils of Procastoroides have been found, shown on the Earth as it looked about 5 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 5 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 | 5.333–1.4 million years ago (Zanclean to Calabrian) |
| Periods | Neogene, Quaternary |
| Family | Castoridae |
| Named by | Barbour and Schultz 1937 |
| Fossil records | 42 occurrences at 13 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | txn:41534, Glenns Ferry, Rexroad, Ballard, Ringold |
About Procastoroides
Procastoroides is an extinct genus of beaver-grouped rodents.
Text in “About” is quoted from the Wikipedia article Procastoroides (revision 1248772796), 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: Q24883997.
