Cormohipparion
Cormohipparion (Greek: "noble", "pony" is an extinct genus of horse belonging to the tribe Hipparionini that lived in North America and Eurasia during the Late Miocene to Pliocene. They grew up to 3 feet long.

James St. John · CC BY 2.0 · via Wikipedia/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
- HipparioniniPBDB
- Diet
- grazer, browserPBDB
- Life habit
- ground dwellingPBDB, for Equinae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 12 million years on record.
The record covers at least 16.3 Mya to 3.6 Mya. No occurrence read is dated outside 23.04 Mya to 1.4 Mya.
143 occurrences of Cormohipparion on record, most of them in the Miocene. 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
143 occurrences- Miocene91%
- Pliocene8%
- Pleistoceneunder 1%
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
30 formations
- Ash Hollow Formation16
- Valentine Formation · Ogallala Group14
- Peace River Formation · Hawthorn Group13
- Alachua Formation10
- Bone Valley Formation · Hawthorn Group6
- Goliad Formation6
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The named rock units Cormohipparion has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 further formations hold fewer occurrences each and are not listed. 39 occurrences have no formation on record, which is common for older literature.
Cormohipparion and its relatives
MioceneWhere Cormohipparion and its relatives were recorded in the Miocene.
Found in the same rock
1,046 taxa- Aphelops megalodus21 sites
- Epicyon haydeni19 sites
- Teleoceras major18 sites
- Aelurodon taxoides16 sites
- Neohipparion eurystyle16 sites
- Pseudhipparion skinneri16 sites
- Aepycamelus15 sites
- Epicyon saevus15 sites
- Leptocyon vafer15 sites
- Camelidae14 sites
- Hippotherium14 sites
- Calippus martini13 sites
- Nannippus aztecus13 sites
- Pliohippus pernix13 sites
- Hipparion tehonense12 sites
- Aelurodon ferox11 sites
- Calippus regulus11 sites
- Gomphotherium11 sites
- Neohipparion trampasense11 sites
- Protohippus supremus11 sites
- Teleoceras medicornutum11 sites
- Ustatochoerus medius11 sites
- Aphelops10 sites
- Paratomarctus euthos10 sites
The Paleobiology Database records 117 sites for Cormohipparion, 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
43 references- Synonymies and reidentifications of North American fossil mammals37
- Cormohipparion and Hipparion (Mammalia, Perissodactyla, Equidae) from the Late Neogene of Florida23
- Phyletic diversification of the Cormohipparion occidentale complex (Mammalia; Perissodactyla, Equidae), Late Miocene, North America, and the origin of the Old World Hippotherium datum12
- Reappraisal of the Cormohipparion from the Valentine Formation, Nebraska8
- Dietary Change and Evolution of Horses in North America6
- A new Cormohipparion (Mammalia, Equidae) from the Pliocene (latest Hemphillian and Blancan) of Florida6
- Tertiary Land Mammals of Florida5
- Miocene biostratigraphy and biochronology of the Dove Spring Formation, Mojave Desert, California, and characterization of the Clarendonian mammal age (late Miocene) in California3
- Systematics and phylogeny of Hipparion, Neohipparion, Nannippus, and Cormohipparion (Mammalia, Equidae) from the Miocene and Pliocene of the New World3
- Cormohipparion quinni (Mammalia, Equidae, Hipparionini) del Mioceno Medio (Barstoviano Tardío) del Norte de Costa Rica2
- Carcharocles megalodon unpublished collections from Natural History Museums around the world2
- The geology and paleontology of Ashfall Fossil Beds, a late Miocene (Clarendonian) mass-death assemblage, Antelope County and adjacent Knox County, Nebraska, USA2
Each of the 143 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. 31 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 content2
Picture of Cormohipparion
- Source
- Wikipedia/Commons
- Credit
- James St. John
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Cormohipparion occidentale · unsm:128869-2109-90
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHipparionini through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Skinner and MacFadden 1977