Subhyracodon occidentalis

Osborn. · Public Domain · via Wikidata/Commons. 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
- SubhyracodonPBDB
- 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 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.
20 occurrences of Subhyracodon occidentalis 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
20 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
6 formations
- Brule Formation · White River Group10
- Cypress Hills Formation2
- White River Formation1
- Chadron Formation1
- Byram Formation1
- Sage Creek Formation1
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The named rock units Subhyracodon occidentalis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Subhyracodon occidentalis and its relatives
OligoceneWhere Subhyracodon occidentalis and its relatives were recorded in the Oligocene.
Found in the same rock
227 taxa- Hesperocyon gregarius8 sites
- Archaeotherium mortoni7 sites
- Leptomeryx evansi7 sites
- Merycoidodon culbertsonii7 sites
- Hyaenodon horridus6 sites
- Hyracodon6 sites
- Palaeolagus haydeni6 sites
- Poebrotherium6 sites
- Ischyromys typus5 sites
- Leptomeryx esulcatus5 sites
- Megalagus turgidus5 sites
- Mesohippus bairdi5 sites
- Poebrotherium wilsoni5 sites
- Colodon occidentalis4 sites
- Daphoenus4 sites
- Hyaenodon crucians4 sites
- Miohippus obliquidens4 sites
- Brontotheriidae3 sites
- Dinictis felina3 sites
- Domnina gradata3 sites
- Eumys elegans3 sites
- Herpetotherium fugax3 sites
- Hoplophoneus primaevus3 sites
- Hypertragulus calcaratus3 sites
The Paleobiology Database records 19 sites for Subhyracodon occidentalis, 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
15 references- The Evolution of North American Rhinoceroses3
- A revision of the geology and paleontology of the Bijou Hills, South Dakota2
- A contribution to the Tertiary geology and paleontology of northeastern Colorado2
- Fossil mammals of the Lower Miocene White River beds. Collection of 18922
- Synonymies and reidentifications of North American fossil mammals1
- An early Oligocene Rhinoceros jaw from the marine Byram Formation of Mississippi1
- Vertebrate fossil record, age, and paleoenvironmental setting of the Brule Formation (Oligocene) in North Dakota1
- Geology and uranium deposits, Shirley Basin area, Wyoming1
- Geology, paleoecology, and paleoclimatology of the Chadron Formation1
- Tertiary geology of the Beaver Rim area, Fremont and Natrona Counties, Wyoming1
- Contributions to the Stratigraphy and Palaeontology of the Goshen Hole Area, Wyoming. IV. New Vertebrates and the Stratigraphy of the Oligocene and Early Miocene1
- Contributions to the Stratigraphy and Palaeontology of the Goshen Hole Area, Wyoming. III. A New Basal Oligocene Formation1
Each of the 20 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. 3 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Subhyracodon occidentalis
- Source
- Wikidata/Commons
- Credit
- Osborn.
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Subhyracodon occidentalis 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 itSubhyracodon through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Leidy 1850)