Rostriamynodon fossil map
Where fossils of Rostriamynodon have been found, shown on the Earth as it looked about 45 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 45 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 | 48.07–37.71 million years ago (Lutetian to Bartonian) |
| Periods | Paleogene |
| Family | Amynodontidae |
| Named by | Wall and Manning 1986 |
| Fossil records | 2 occurrences at 1 locations (PBDB) |
| Found in | China |
| Rock formations | Irdin Manha |
About Rostriamynodon
Rostriamynodon is an extinct genus of primitive amynodont that lived in East Asia during the Middle Eocene. The genus contains a single species, R. grangeri, known from the Irdin Manha Formation in Inner Mongolia, China. Rostriamynodon is known from better fossil material than other primitive amynodonts, and its status as a intermediate form is important for the study of rhinocerotoid evolution.
Text in “About” is quoted from the Wikipedia article Rostriamynodon (revision 1374260123), 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: Q131055296.
