Janjucetus fossil map
Where fossils of Janjucetus 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 | 27.3–23.04 million years ago (Chattian) |
| Periods | Paleogene |
| Family | Mammalodontidae |
| Named by | Fitzgerald 2006 |
| Fossil records | 20 occurrences at 7 locations (PBDB) |
| Found in | Australia |
| Rock formations | Jan Juc, Clifton |
About Janjucetus
Janjucetus is an extinct genus of baleen whale that lived during the Late Oligocene (Chattian) in south-east Australia, around 25 million years ago. Remains of the genus have been found in the Jan Juc Marl in the Jan Juc Formation, near the township of the same name, and have been assigned to two species: the type species J. hunderi and J. dullardi. The locality has yielded remains of more extinct cetaceans, including Prosqualodon, Waipatia, and the related Mammalodon.
Text in “About” is quoted from the Wikipedia article Janjucetus (revision 1368925346), 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: Q135674.
