🦕 Prehistoric World Map

Tytthaena fossil map

Where fossils of Tytthaena have been found, shown on the Earth as it looked about 56 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 56 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 →

Tytthaena
Image: M. Fox, CC0, via Wikimedia Commons
GroupEarly mammals
Lived60.9–56 million years ago (Selandian to Thanetian)
PeriodsPaleogene
FamilyOxyaenidae
Named byGingerich 1980
Fossil records12 occurrences at 3 locations (PBDB)
Found inUnited States
Rock formationstxn:40954, Wasatch, Fort Union

About Tytthaena

Tytthaena ("little hyena") is an extinct genus of placental mammals from extinct subfamily Tytthaeninae within extinct family Oxyaenidae, that lived in North America from the late Paleocene to early Eocene.

Text in “About” is quoted from the Wikipedia article Tytthaena (revision 1294869677), 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: Q25303530.

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