Lambertocyon eximius

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- LambertocyonPBDB
- Diet
- omnivorePBDB, for Arctocyonidae
- Life habit
- ground dwellingPBDB, for Arctocyonidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 1.6 million years on record.
The record covers at least 60.9 Mya to 59.24 Mya. No occurrence read is dated outside 63.4 Mya to 56 Mya.
10 occurrences of Lambertocyon eximius on record, most of them in the Paleocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
10 occurrences- Paleocene100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
2 formations
- Fort Union Formation8
- Black Peaks Formation · Tornillo Group2
Loading coastlines…
The named rock units Lambertocyon eximius has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Lambertocyon eximius and its relatives
PaleoceneWhere Lambertocyon eximius and its relatives were recorded in the Paleocene.
Found in the same rock
70 taxa- Plesiadapis churchilli4 sites
- Plesiadapis fodinatus4 sites
- Ectocion mediotuber3 sites
- Ignacius frugivorus3 sites
- Nannodectes gidleyi3 sites
- Phenacodus grangeri3 sites
- Thryptacodon australis3 sites
- Adunator minutus2 sites
- Arctocyon2 sites
- Arctocyon acrogenius2 sites
- Bessoecetor septentrionalis2 sites
- Chiromyoides2 sites
- Chiromyoides caesor2 sites
- Phenacodaptes sabulosus2 sites
- Phenacodus magnus2 sites
- Psittacotherium multifragum2 sites
- Ptilodus kummae2 sites
- Thryptacodon orthogonius2 sites
- Adapisoricidae1 site
- Aletodon conardae1 site
- Aphronorus fraudator1 site
- Arctocyonidae1 site
- Bessoecetor pilodontus1 site
- Borealosuchus1 site
The Paleobiology Database records 10 sites for Lambertocyon eximius, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
4 references- Mammalian paleontology of the Fort Union Formation (Paleocene), eastern Rock Springs Uplift, Sweetwater County, Wyoming5
- Lambertocyon eximius, a New Arctocyonid (Mammalia, Condylarthra) from the Late Paleocene of Western North America3
- The Tiffanian Land-Mammal Age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming1
- Synonymies and reidentifications of North American fossil mammals1
Each of the 10 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Lambertocyon eximius
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Lambertocyon eximius was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itLambertocyon through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gingerich 1979