Stockoceros fossil map
Where fossils of Stockoceros have been found, shown on the Earth as it looked about 0 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 0 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 | 4.7–0.0117 million years ago (Zanclean to Late Pleistocene) |
| Periods | Neogene, Quaternary |
| Family | Antilocapridae |
| Named by | Skinner 1942 |
| Fossil records | 42 occurrences at 15 locations (PBDB) |
| Found in | United States, Mexico |
| Rock formations | txn:42720, Tacubaya, Good Creek |
About Stockoceros
Stockoceros is an extinct genus of the North American artiodactyl family Antilocapridae (pronghorns), one known to have inhabited what is now Mexico and the Southwestern United States during the Pleistocene epoch. The genus survived until about 12,000 years ago, and was present when Paleo-Indians arrived in North America from Eurasia.
Text in “About” is quoted from the Wikipedia article Stockoceros (revision 1361351036), 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: Q7618130.