Neoparadoxia fossil map
Where fossils of Neoparadoxia 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 | 15.98–11.63 million years ago (Langhian to Serravallian) |
| Periods | Neogene |
| Family | Paleoparadoxiidae |
| Named by | Barnes 2013 |
| Fossil records | 8 occurrences at 3 locations (PBDB) |
| Found in | United States, Japan |
| Rock formations | Monterey, Ladera, Tonokita |
About Neoparadoxia
Neoparadoxia is an extinct genus of large, herbivorous aquatic desmostylian mammals from the Miocene Ladera and Monterey Formations of North America.The name comes from the Latin "Neo", meaning new, and Paleoparadoxia, a related genus of desmostylian.
Text in “About” is quoted from the Wikipedia article Neoparadoxia (revision 1368885695), 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: Q15636067.