Prosynthetoceras fossil map
Where fossils of Prosynthetoceras have been found, shown on the Earth as it looked about 15 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 15 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 | 29.5–5.333 million years ago (Rupelian to Messinian) |
| Periods | Paleogene, Neogene |
| Family | Protoceratidae |
| Named by | (Frick 1937) |
| Fossil records | 76 occurrences at 25 locations (PBDB) |
| Found in | United States |
| Rock formations | Fleming, txn:42572, Oakville, Torreya, Alachua, Kirkwood |
About Prosynthetoceras
Prosynthetoceras is an extinct genus of Artiodactyla, of the family Protoceratidae, endemic to North America. It lived from the Early to Middle Miocene 20.6—13.6 Ma, existing for approximately 7 million years. In appearance, Prosynthetoceras looked much like Syndyoceras, Kyptoceras, and Synthetoceras with three horns, one on the snout, and two above the eyes.
Text in “About” is quoted from the Wikipedia article Prosynthetoceras (revision 1258136352), 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: Q7251128.
