Xiphiacetus fossil map
Where fossils of Xiphiacetus 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 | 23.04–2.58 million years ago (Aquitanian to Piacenzian) |
| Periods | Neogene |
| Family | Eurhinodelphinidae |
| Named by | Lambert 2005 |
| Fossil records | 86 occurrences at 32 locations (PBDB) |
| Found in | United States, Belgium, Italy, Netherlands, Austria |
| Rock formations | Calvert, Berchem, Pietra Leccese, txn:63595, Groote Heide, Pungo River |
About Xiphiacetus
Xiphiacetus is an extinct genus of cetacean known from the Miocene (early Burdigalian to late Tortonian, 20.43 to 7.246 million years ago of Europe and the U.S. East Coast.
Text in “About” is quoted from the Wikipedia article Xiphiacetus (revision 1336003002), 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: Q8044729.