Aepinacodon americanus

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
- AepinacodonPBDB
- Diet
- browserPBDB, for Anthracotheriidae
- Life habit
- ground dwellingPBDB, for Anthracotheriidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At most 5.2 million years on record.
Every occurrence read is dated to somewhere between 37 Mya and 31.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Aepinacodon americanus on record, most of them in the Eocene. 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
5 occurrencesThese 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
Loading coastlines…
The named rock units Aepinacodon americanus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Aepinacodon americanus and its relatives
EoceneWhere Aepinacodon americanus and its relatives were recorded in the Eocene.
Found in the same rock
100 taxa- Daphoenus4 sites
- Hoplophoneus primaevus4 sites
- Subhyracodon mitis4 sites
- Archaeotherium mortoni3 sites
- Brachyrhynchocyon dodgei3 sites
- Brontotheriidae3 sites
- Hyaenodon horridus3 sites
- Merycoidodon culbertsonii3 sites
- Mesohippus bairdi3 sites
- Colodon occidentalis2 sites
- Eomyidae2 sites
- Equidae2 sites
- Hesperocyon gregarius2 sites
- Hyaenodon crucians2 sites
- Hypertragulidae2 sites
- Hyracodon2 sites
- Hyracodon priscidens2 sites
- Mesohippus exoletus2 sites
- Poebrotherium wilsoni2 sites
- Pseudoprotoceras longinaris2 sites
- Subhyracodon occidentalis2 sites
- Trigonias osborni2 sites
- Trigonias wellsi2 sites
- <Novacek leptictid>1 site
The Paleobiology Database records 5 sites for Aepinacodon americanus, 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- Synonymies and reidentifications of North American fossil mammals2
- Correlation of the early Oligocene (Chadronian) in northwestern Nebraska1
- The North American anthracotheres1
- Fossil mammals of the Lower Miocene White River beds. Collection of 18921
Each of the 5 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 Aepinacodon americanus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Aepinacodon americanus 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 itAepinacodon through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Leidy 1856)