🦕 Prehistoric World Map

Nannocetus fossil map

Where fossils of Nannocetus 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 →

GroupEarly mammals
Lived15.98–3.6 million years ago (Langhian to Zanclean)
PeriodsNeogene
FamilyCetotheriidae
Named byKellogg 1929
Fossil records14 occurrences at 6 locations (PBDB)
Found inUnited States, Mexico
Rock formationsSan Mateo, Santa Margarita, Towsley, Torgugas, Monterey

About Nannocetus

Nannocetus is an extinct baleen whale belonging to the family Cetotheriidae.

Text in “About” is quoted from the Wikipedia article Nannocetus (revision 1265801929), 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: Q18391549.

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