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Paracathartes fossil map

Where fossils of Paracathartes 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 →

GroupPrehistoric birds
Lived56–48.07 million years ago (Ypresian)
PeriodsPaleogene
FamilyLithornithidae
Named byHarrison 1979
Fossil records1 occurrences at 1 locations (PBDB)
Found inUnited States
Rock formationsWillwood

About Paracathartes

Paracathartes is a genus of extinct bird from the Wasachtian horizon of lower Eocene Wyoming. One species, Paracathartes howardae has been described.

It is a paleognathous bird, turkey-like in stature and size, that probably resembled a tinamou quite closely. Unlike other lithornithids but much like its modern relatives it was probably a poor flyer.

Paracathartes was described by Harrison as the earliest known cathartid vulture. Rich criticized this assignment. Houde (1988) included it as a member of the order Lithornithiformes and family Lithornithidae.

The holotype specimen is in the collection of the Royal Ontario Museum. It has catalog number ROM 22658. It is the distal end of a left tibiotarsus. It was collected by G. E. Lindblad and G. Sternberg on 4 August 1949. It was found at the northernmost branch of Elk Creek, near Basin, Wyoming. The horizon is Greybullian, middle Wasatchian (early Eocene), Willwood Formation, Bighorn Basin.

Further specimens of Paracathartes were collected, including almost the whole skeleton (USNM 361402-361446, 391984, 404747-404806) from at least five individuals preserved together. These bones were associated with three whole eggs (USNM 336564) and an avian neurocranium (USNM 361415) which may belong to Paracathartes or to a possible phorusrhacid.

Text in “About” is quoted from the Wikipedia article Paracathartes (revision 1379751135), 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: Q7133802.

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