Parietobalaena fossil map
Where fossils of Parietobalaena 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 |
| Named by | Kellogg 1924 |
| Fossil records | 70 occurrences at 27 locations (PBDB) |
| Found in | United States, Netherlands, Japan, Belgium, Mexico, Australia |
| Rock formations | Calvert, Groote Heide, txn:NF, Berchem, Nagura, Breda |
About Parietobalaena
Parietobalaena is an extinct genus of baleen whale, belonging to the family Pelocetidae. Fossils are found in Miocene-aged marine strata in North America, Europe, Australia, and Japan, including the Temblor and Itahashi formations. Based on previous estimates of juvenile specimens, Tsai (2017) suggested a body size of 12-15 m for P. yamaokai, akin to that of the gray whale.
Text in “About” is quoted from the Wikipedia article Parietobalaena (revision 1334907501), 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: Q2883776.