Amphicaenopus platycephalus

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
- AmphicaenopusPBDB
- Diet
- browserPBDB, for Rhinocerotidae
- Life habit
- ground dwellingPBDB, for Rhinocerotidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 14 million years on record.
Every occurrence read is dated to somewhere between 31.8 Mya and 18.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Amphicaenopus platycephalus on record, most of them in the Oligocene. 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
3 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
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The named rock units Amphicaenopus platycephalus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Amphicaenopus platycephalus and its relatives
OligoceneWhere Amphicaenopus platycephalus and its relatives were recorded in the Oligocene.
Found in the same rock
26 taxa- Diceratherium tridactylum3 sites
- Protoceras celer2 sites
- Agriochoerus gaudryi1 site
- Archaeocyon leptodus1 site
- Archaeotherium lemleyi1 site
- Castoridae1 site
- Elomeryx armatus1 site
- Entelodontidae1 site
- Heptacodon curtus1 site
- Hesperocyon gregarius1 site
- Hypertragulus1 site
- Hypertragulus dakotensis1 site
- Hyracodon leidyanus1 site
- Hyracodon nebraskensis1 site
- Leptodontomys douglassi1 site
- Mesocyon temnodon1 site
- Miohippus annectens1 site
- Miohippus gidleyi1 site
- Miohippus intermedius1 site
- Nimravidae1 site
- Paracrax gigantea1 site
- Paracrax wetmorei1 site
- Penetrigonias dakotensis1 site
- Protapirus obliquidens1 site
The Paleobiology Database records 3 sites for Amphicaenopus platycephalus, 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
2 references- The Evolution of North American Rhinoceroses2
- Fossil mammals of the Lower Miocene White River beds. Collection of 18921
Each of the 3 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 Amphicaenopus platycephalus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Amphicaenopus platycephalus was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itAmphicaenopus through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Osborn and Wortman 1894)