Indohyus fossil map
Where fossils of Indohyus 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 | 56–37.71 million years ago (Ypresian to Bartonian) |
| Periods | Paleogene |
| Family | Raoellidae |
| Named by | Ranga Rao 1971 |
| Fossil records | 30 occurrences at 9 locations (PBDB) |
| Found in | India, Pakistan, China |
| Rock formations | Subathu, txn:63190, Kuldana, Chorgali |
About Indohyus
Indohyus (meaning "Indian pig", from Greek ινδός, indos, meaning 'Indian' and ὗς, hus, meaning 'pig' or 'swine') is an extinct genus of raoellid artiodactyl known from Eocene fossils in Asia. The fossils were discovered among rocks that had been collected in 1970 in Kashmir by the Indian geologist A. Ranga Rao, who found a few teeth and parts of a jawbone. He named the type and only species, Indohyus indirae, one year later.
In 2007, Hans Thewissen recognised an auditory bulla, a highly distinctive ear structure found only in cetaceans, in a broken skull collected from these rocks and given to him by Ranga Rao's widow. Later analysis of oxygen-18 values and the presence of osteosclerotic bones indicate that the chevrotain-like Indohyus was habitually aquatic.
Text in “About” is quoted from the Wikipedia article Indohyus (revision 1379869279), 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: Q133094.
