Mylagaulidae

The Mylagaulidae or mylagaulids are an extinct family of sciuromorph rodents nested within the superfamily Aplodontioidea. They are known from the Neogene of North America and China. The oldest member is the Late Oligocene Trilaccogaulus montanensis that lived some 29 million years ago (Mya), and the youngest was Ceratogaulus hatcheri—formerly in the invalid genus "Epigaulus" —which was found barely into the Pliocene, some 5 Mya.

Mylagaulidae

R. Bruce Horsfall · Public Domain · 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
RodentiaPBDB
Diet
herbivorePBDB, for Rodentia
Life habit
ground dwellingPBDB, for Rodentia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 15 million years on record.

The record covers at least 24.7 Mya to 9.4 Mya. No occurrence read is dated outside 29.5 Mya to 4.7 Mya.

Oligocene — about 16 of 242 occurrencesOligoceneMiocene — about 222 of 242 occurrencesMiocenePliocene — about 4 of 242 occurrences30–29 Mya — about 0.6 occurrences29–28 Mya — about 1 occurrence28–27 Mya — about 1 occurrence27–27 Mya — about 1 occurrence27–26 Mya — about 1 occurrence26–25 Mya — about 1 occurrence25–24 Mya — about 4 occurrences24–23 Mya — about 4 occurrences23–22 Mya — about 4 occurrences22–21 Mya — about 4 occurrences21–21 Mya — about 4 occurrences21–20 Mya — about 4 occurrences20–19 Mya — about 4 occurrences19–18 Mya — about 13 occurrences18–17 Mya — about 18 occurrences17–16 Mya — about 18 occurrences16–15 Mya — about 17 occurrences15–15 Mya — about 17 occurrences15–14 Mya — about 17 occurrences14–13 Mya — about 17 occurrences13–12 Mya — about 16 occurrences12–11 Mya — about 15 occurrences11–10 Mya — about 14 occurrences10–9.4 Mya — about 14 occurrences9.4–8.5 Mya — about 6 occurrences8.5–7.6 Mya — about 6 occurrences7.6–6.8 Mya — about 6 occurrences6.8–5.9 Mya — about 6 occurrences5.9–5.1 Mya — about 6 occurrences5.1–4.2 Mya — about 2 occurrences24.7 Mya9.4 Mya30 Mya4.2 Mya

242 occurrences of Mylagaulidae 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

242 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

52 formations

Valentine — 42.70°N, 100.00°WValentine — 42.49°N, 98.11°WValentine — 42.80°N, 100.80°WValentine — 42.80°N, 99.70°WValentine — 42.81°N, 100.05°WValentine — 40.02°N, 98.53°WValentine — 42.78°N, 100.03°WValentine — 40.10°N, 98.50°WValentine — 43.20°N, 99.80°WValentine — 42.60°N, 98.00°WAsh Hollow — 42.70°N, 100.00°WAsh Hollow — 42.80°N, 99.70°WAsh Hollow — 42.80°N, 100.80°WAsh Hollow — 42.39°N, 98.10°WAsh Hollow — 40.50°N, 100.50°WAsh Hollow — 42.60°N, 98.00°WAsh Hollow — 41.30°N, 101.89°WAsh Hollow — 43.40°N, 100.60°WAsh Hollow — 41.20°N, 101.80°WAsh Hollow — 42.30°N, 98.00°WAsh Hollow — 42.63°N, 100.05°WAsh Hollow — 41.30°N, 105.10°WArikaree — 41.70°N, 103.10°WArikaree — 43.20°N, 108.20°WArikaree — 43.20°N, 107.10°WTesuque — 35.50°N, 106.20°WTesuque — 36.50°N, 107.00°WWood Mountain — 49.17°N, 105.99°WWood Mountain — 49.20°N, 106.20°WRunningwater — 42.49°N, 102.96°WRunningwater — 42.75°N, 102.00°WRunningwater — 42.70°N, 102.10°WRunningwater — 42.45°N, 102.96°WRunningwater — 42.20°N, 103.10°WOgallala — 39.80°N, 99.40°WOgallala — 36.70°N, 101.40°WOgallala — 37.20°N, 99.90°WOgallala — 39.08°N, 99.77°WMascall — 44.90°N, 120.20°WMascall — 44.50°N, 119.30°WMascall — 44.00°N, 120.13°WCypress Hills — 49.60°N, 108.80°WCypress Hills — 49.60°N, 109.00°WDeep River — 46.50°N, 111.00°WHarrison — 42.80°N, 100.80°WSheep Creek — 42.15°N, 103.70°WSheep Creek — 42.40°N, 103.80°WAlachua — 29.80°N, 82.10°WAlachua — 29.55°N, 82.52°WAlachua — 29.65°N, 82.60°WAlachua — 29.70°N, 82.60°WMonroe Creek — 43.30°N, 102.50°WRosebud — 43.20°N, 100.70°WRosebud — 43.30°N, 102.50°WSharps — 43.30°N, 102.50°WJohn Day — 44.90°N, 120.20°WJohn Day — 44.70°N, 119.62°WFort Randall — 43.53°N, 99.13°WFort Randall — 43.10°N, 98.30°WFort Randall — 43.49°N, 99.27°WTorreya — 30.50°N, 84.50°WMadison Valley — 45.93°N, 111.29°WHepburn's Mesa — 45.80°N, 110.50°WGoliad — 28.60°N, 97.70°WGoliad — 28.34°N, 97.96°WGoliad — 28.53°N, 97.74°WGering — 41.70°N, 103.10°WGering — 41.80°N, 103.80°WPawnee Creek — 40.80°N, 104.20°WPawnee Creek — 40.90°N, 103.28°W

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The named rock units Mylagaulidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 28 further formations hold fewer occurrences each and are not listed. 59 occurrences have no formation on record, which is common for older literature.

Mylagaulidae and its relatives

Miocene

Where Mylagaulidae and its relatives were recorded in the Miocene.

Found in the same rock

1,455 taxa

The Paleobiology Database records 211 sites for Mylagaulidae, 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

54 references

Each of the 242 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. 42 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 Mylagaulidae

Credit
R. Bruce Horsfall
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Mylagaulidae 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 itRodentia through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1881