Pyrocyon fossil map
Where fossils of Pyrocyon have been found, shown on the Earth as it looked about 56 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 56 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 | 56–51.1 million years ago (Ypresian) |
| Periods | Paleogene |
| Family | Hyaenodontidae |
| Named by | Gingerich and Deutsch 1989 |
| Fossil records | 4 occurrences at 2 locations (PBDB) |
| Found in | United States |
| Rock formations | Willwood |
About Pyrocyon
Pyrocyon ("fire dog") is an extinct genus of small carnivorous placental mammals from extinct order Hyaenodonta, that lived in North America during the early Eocene. Fossils of Pyrocyon have been found in Wyoming and Colorado. Weight of Pyrocyon dioctetus has been estimated at around 2.6 kilograms.
Text in “About” is quoted from the Wikipedia article Pyrocyon (revision 1368547326), 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: Q22285256.
