Phileosimias fossil map
Where fossils of Phileosimias have been found, shown on the Earth as it looked about 30 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 30 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 | 33.9–27.3 million years ago (Rupelian) |
| Periods | Paleogene |
| Family | Eosimiidae |
| Named by | Marivaux et al. 2005 |
| Fossil records | 4 occurrences at 1 locations (PBDB) |
| Found in | Pakistan |
| Rock formations | Chitarwata |
About Phileosimias
Phileosimias ("Eosimias ally") is an extinct genus of primates with two species, P. kamli and P. bahuiorum, that are believed to be amongst the early simians.
Marivaux et al. announced in 2005 their discovery of fossils of two new species, Phileosimias kamali and Phileosimias brahuiorum, found in the Bugti Hills of Pakistan. They concluded that Phileosimias are almost certainly early simians. However, they felt the fossil evidence (primarily dental specimens) was insufficient to categorise them as Eosimiidae (along with other early simians) or whether they were sufficiently different to be placed into a separate group. The shapes of their molars and premolars differ from species already classified as Eosimidae.
The two species are Phileosimias brahuiorum and Phileosimias kamali, which is slightly larger, but both are estimated to have weighed about 250 grams. They were extant during the Early Oligocene epoch.
Text in “About” is quoted from the Wikipedia article Phileosimias (revision 1142739374), 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: Q56291582.
