Ectoganus fossil map
Where fossils of Ectoganus 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 | 60.9–48.07 million years ago (Selandian to Ypresian) |
| Periods | Paleogene |
| Family | Stylinodontidae |
| Named by | Cope 1874 |
| Fossil records | 154 occurrences at 43 locations (PBDB) |
| Found in | United States |
| Rock formations | Willwood, Fort Union, DeBeque, txn:40616, San Jose, Wasatch |
About Ectoganus
Ectoganus ("outside brightness") is an extinct genus of taeniodonts from tribe Ectoganini within subfamily Stylinodontinae and family Stylinodontidae, that lived in North America from the Late Paleocene to Early Eocene.
Text in “About” is quoted from the Wikipedia article Ectoganus (revision 1354686103), 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: Q22443087.
