🦕 Prehistoric World Map

Idiocetus fossil map

Where fossils of Idiocetus have been found, shown on the Earth as it looked about 5 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 5 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 →

Idiocetus
Image: Khruner, CC BY-SA 3.0, via Wikimedia Commons
GroupEarly mammals
Lived11.63–1.8 million years ago (Tortonian to Gelasian)
PeriodsNeogene, Quaternary
FamilyBalaenidae
Named byCapellini 1876
Fossil records4 occurrences at 2 locations (PBDB)
Found inJapan, Italy
Rock formationstxn:42978

About Idiocetus

Idiocetus ("unique whale") is a genus of extinct cetaceans of the family Balaenidae.

Text in “About” is quoted from the Wikipedia article Idiocetus (revision 1358258726), 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: Q16983510.

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