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Angelarctocyon fossil map

Where fossils of Angelarctocyon have been found, shown on the Earth as it looked about 45 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 45 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 →

Angelarctocyon
Image: Susumu Tomiya and Zhijie Jack Tseng, CC BY 4.0, via Wikimedia Commons
GroupEarly mammals
Lived39.7–37 million years ago (Bartonian to Priabonian)
PeriodsPaleogene
FamilyAmphicyonidae
Named byTomiya and Tseng 2016
Fossil records6 occurrences at 2 locations (PBDB)
Found inUnited States
Rock formationstxn:41266, Galisteo

About Angelarctocyon

Angelarctocyon is an extinct genus of Amphicyonidae (bear dog), which belongs to the order Carnivora.

It was originally interpreted as a miacid and named Miacis australis; however, a 2016 study suggested it is an early amphicyonid. Analysis of skeletal morphology suggests it is most closely related to another taxon previously attributed to Miacidae, Gustafsonia (formerly Miacis cognitus), alongside the well known New World amphicyonid, Daphoenus.

Text in “About” is quoted from the Wikipedia article Angelarctocyon (revision 1368985063), 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: Q27486944.

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