Mesocetus fossil map
Where fossils of Mesocetus 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 | 23.04–0.774 million years ago (Aquitanian to Calabrian) |
| Periods | Neogene, Quaternary |
| Family | Tranatocetidae |
| Named by | Van Beneden 1880 |
| Fossil records | 62 occurrences at 24 locations (PBDB) |
| Found in | United States, Netherlands, Bosnia and Herzegovina, Belgium, Austria, Slovakia, France, Italy, Croatia, Hungary |
| Rock formations | txn:328006, Calvert, Sables d'Anvers, Groote Heide, Studienka, Choptank |
About Mesocetus
Mesocetus
is an extinct genus of baleen whale from the Miocene of Europe and North America.
Text in “About” is quoted from the Wikipedia article Mesocetus (revision 1363293605), 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: Q6821424.