Equus niobrarensis

Equus niobrarensis is an extinct species of Equus, the genus that includes the horse. E. niobrarensis may be synonymous with Equus scotti. It was "stout-legged" and belonged to the "big horses" category as defined by M. C. Winans. The skull of the horse was noted as being broader than Equus caballus.

Equus niobrarensis

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
EquusPBDB
Diet
grazerPBDB, for Equus
Life habit
ground dwellingPBDB, for Equus
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 81 thousand years on record.

The record covers at least 210 ka to 129 ka. No occurrence read is dated outside 2.58 Mya to 11.7 ka.

Pliocene — about 0 of 15 occurrencesPleistocene — about 15 of 15 occurrencesPleistoceneHolocene — about 0 of 15 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.0 occurrences2.5–2.4 Mya — about 0.0 occurrences2.4–2.3 Mya — about 0.0 occurrences2.3–2.2 Mya — about 0.0 occurrences2.2–2.1 Mya — about 0.0 occurrences2.1–2.0 Mya — about 0.0 occurrences2.0–1.8 Mya — about 0.0 occurrences1.8–1.7 Mya — about 0.0 occurrences1.7–1.6 Mya — about 0.0 occurrences1.6–1.5 Mya — about 0.0 occurrences1.5–1.4 Mya — about 0.0 occurrences1.4–1.3 Mya — about 0.5 occurrences1.3–1.2 Mya — about 0.7 occurrences1.2–1.1 Mya — about 0.7 occurrences1.1–1.0 Mya — about 0.7 occurrences1.0–924 ka Mya — about 0.7 occurrences924 ka–821 ka Mya — about 0.7 occurrences821 ka–719 ka Mya — about 0.7 occurrences719 ka–616 ka Mya — about 0.7 occurrences616 ka–513 ka Mya — about 0.7 occurrences513 ka–411 ka Mya — about 0.7 occurrences411 ka–308 ka Mya — about 0.7 occurrences308 ka–205 ka Mya — about 0.7 occurrences205 ka–103 ka Mya — about 1 occurrence103 ka–0 Mya — about 5 occurrences210 ka – 129 ka3.08 Mya0 Mya

15 occurrences of Equus niobrarensis on record, most of them in the Pleistocene. 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

15 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

4 formations

McPherson — 38.30°N, 97.60°WFloral — 52.21°N, 106.58°WFloral — 52.10°N, 106.70°WKingsdown — 37.04°N, 100.50°WChapala — 20.30°N, 103.20°W

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The named rock units Equus niobrarensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Equus niobrarensis and its relatives

Pleistocene

Where Equus niobrarensis and its relatives were recorded in the Pleistocene.

Found in the same rock

227 taxa

The Paleobiology Database records 15 sites for Equus niobrarensis, 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

12 references

Each of the 15 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. 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 Equus niobrarensis

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

Structured light scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Equus niobrarensis · usnm:paleobiology:12146

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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 itEquus through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hay 1913