Epihippus

Epihippus is an extinct genus of the modern horse family Equidae that lived in the Eocene, from 46 to 38 million years ago.

Epihippus

Internet Archive Book Images · No restrictions · 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
EquidaePBDB
Diet
browserPBDB, for Equidae
Life habit
ground dwellingPBDB, for Equidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 12 million years on record.

Every occurrence read is dated to somewhere between 48.07 Mya and 37 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 46 of 46 occurrencesEocene48–48 Mya — about 0.0 occurrences48–47 Mya — about 0.0 occurrences47–47 Mya — about 0.0 occurrences47–47 Mya — about 0.0 occurrences47–46 Mya — about 0.0 occurrences46–46 Mya — about 1 occurrence46–45 Mya — about 3 occurrences45–45 Mya — about 3 occurrences45–45 Mya — about 3 occurrences45–44 Mya — about 3 occurrences44–44 Mya — about 3 occurrences44–43 Mya — about 3 occurrences43–43 Mya — about 3 occurrences43–43 Mya — about 3 occurrences43–42 Mya — about 3 occurrences42–42 Mya — about 3 occurrences42–41 Mya — about 3 occurrences41–41 Mya — about 3 occurrences41–41 Mya — about 3 occurrences41–40 Mya — about 3 occurrences40–40 Mya — about 3 occurrences40–39 Mya — about 0.2 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–37 Mya — about 0.0 occurrences37–37 Mya — about 0.0 occurrences48.6 Mya36.5 Mya

46 occurrences of Epihippus 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

46 occurrences

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

14 formations

Uinta — 40.07°N, 109.28°WUinta — 40.17°N, 109.93°WUinta — 40.07°N, 109.70°WTepee Trail — 43.70°N, 108.70°WTepee Trail — 43.20°N, 108.20°WWagon Bed ("Tepee Trail") — 43.20°N, 107.10°WWagon Bed ("Tepee Trail") — 43.20°N, 108.20°WColmena Tuff — 29.90°N, 104.20°WWashakie — 40.60°N, 108.10°WWashakie — 41.70°N, 109.00°WWashakie — 41.18°N, 108.40°WWiggins — 43.70°N, 108.70°WSantiago — 32.90°N, 117.10°WSantiago — 33.13°N, 117.31°WLaredo — 27.53°N, 99.43°WDell Beds — 45.00°N, 112.80°WDevil's Graveyard — 29.90°N, 104.20°WCypress Hills — 50.20°N, 107.60°WClarno — 44.93°N, 120.42°WBridger — 41.08°N, 110.10°WKishenehn — 48.30°N, 113.61°W

Loading coastlines…

The named rock units Epihippus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Epihippus and its relatives

Eocene

Where Epihippus and its relatives were recorded in the Eocene.

Found in the same rock

428 taxa

The Paleobiology Database records 41 sites for Epihippus, 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

18 references

Each of the 46 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. 5 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 content3

Picture of Epihippus

Credit
Internet Archive Book Images
Licence
No restrictions
Commercial use
cannot be read from the licence given — check the record

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Epihippus gracilis · fmnh:pm:55311

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itEquidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Marsh 1878