Miniochoerus

Miniochoerus is an extinct genus of small oreodont endemic to North America. They lived during the Late Eocene to Early Oligocene 38–30.8 mya, existing for approximately 7 million years. Fossils have been found only in North Dakota, South Dakota, Nebraska, Montana, and Wyoming.

Miniochoerus

Jonathan Chen · CC BY-SA 4.0 · 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
MiniochoerinaePBDB
Diet
herbivorePBDB, for Merycoidodontidae
Life habit
ground dwellingPBDB, for Merycoidodontidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Artiodactyla

Time the record covers

At least 2.1 million years on record.

The record covers at least 33.9 Mya to 31.8 Mya. No occurrence read is dated outside 37 Mya to 29.5 Mya.

Eocene — about 21 of 125 occurrencesEoceneOligocene — about 104 of 125 occurrencesOligocene37–37 Mya — about 0.5 occurrences37–37 Mya — about 2 occurrences37–36 Mya — about 2 occurrences36–36 Mya — about 2 occurrences36–36 Mya — about 2 occurrences36–36 Mya — about 2 occurrences36–35 Mya — about 2 occurrences35–35 Mya — about 2 occurrences35–35 Mya — about 2 occurrences35–34 Mya — about 2 occurrences34–34 Mya — about 2 occurrences34–34 Mya — about 5 occurrences34–34 Mya — about 12 occurrences34–33 Mya — about 12 occurrences33–33 Mya — about 12 occurrences33–33 Mya — about 12 occurrences33–32 Mya — about 12 occurrences32–32 Mya — about 12 occurrences32–32 Mya — about 12 occurrences32–32 Mya — about 3 occurrences32–31 Mya — about 1 occurrence31–31 Mya — about 1 occurrence31–31 Mya — about 1 occurrence31–30 Mya — about 1 occurrence30–30 Mya — about 1 occurrence30–30 Mya — about 1 occurrence30–30 Mya — about 1 occurrence30–29 Mya — about 0.3 occurrences33.9 Mya31.8 Mya37.5 Mya29 Mya

125 occurrences of Miniochoerus 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

125 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

Brule — 42.90°N, 105.20°WBrule — 42.80°N, 103.10°WBrule — 43.30°N, 102.50°WBrule — 43.90°N, 102.40°WBrule — 43.20°N, 103.20°WBrule — 41.80°N, 103.80°WBrule — 43.85°N, 102.50°WBrule — 42.40°N, 103.80°WBrule — 43.71°N, 102.58°WBrule — 43.60°N, 102.45°WChadron — 43.60°N, 102.45°WChadron — 42.80°N, 103.10°WChadron — 42.90°N, 105.20°WChadron — 43.20°N, 103.20°WWhite River — 43.20°N, 108.20°WWhite River — 43.20°N, 107.10°WWhite River — 40.80°N, 103.10°WSage Creek — 45.00°N, 112.80°W

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The named rock units Miniochoerus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 occurrences have no formation on record, which is common for older literature.

Miniochoerus and its relatives

Oligocene

Where Miniochoerus and its relatives were recorded in the Oligocene.

Found in the same rock

259 taxa

The Paleobiology Database records 95 sites for Miniochoerus, 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

16 references

Each of the 125 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. 4 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 Miniochoerus

Credit
Jonathan Chen
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Miniochoerus 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.

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 itMiniochoerinae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Schultz and Falkenbach 1956