Metarhinus

Metarhinus is a genus of brontothere endemic to North America. It lived during the Eocene, in the early and middle Uintan land mammal age.

Metarhinus

Nikhil Iyengar · 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
BrontotheriinaePBDB
Diet
browserPBDB, for Brontotheriidae
Life habit
ground dwellingPBDB, for Brontotheriidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 181 million years on record.

The record covers at least 227.3 Mya to 45.9 Mya. No occurrence read is dated outside 237 Mya to 39.7 Mya.

Middle Triassic — about 0 of 47 occurrencesLate Triassic — about 21 of 47 occurrencesLate TriassicEarly Jurassic — about 0 of 47 occurrencesMiddle Jurassic — about 0 of 47 occurrencesLate Jurassic — about 0 of 47 occurrencesEarly Cretaceous — about 0 of 47 occurrencesLate Cretaceous — about 0 of 47 occurrencesPaleocene — about 0 of 47 occurrencesEocene — about 26 of 47 occurrencesEocene241–234 Mya — about 0.4 occurrences234–227 Mya — about 0.9 occurrences227–220 Mya — about 6 occurrences220–214 Mya — about 6 occurrences214–207 Mya — about 6 occurrences207–200 Mya — about 1 occurrence49–43 Mya — about 14 occurrences43–36 Mya — about 12 occurrences227.3 Mya45.9 Mya241 Mya36 Mya

47 occurrences of Metarhinus 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

47 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

16 formations

Friars — 32.90°N, 117.10°WUinta — 40.20°N, 109.90°WChinle — 34.51°N, 109.36°WChinle — 34.86°N, 109.78°WChinle — 34.83°N, 109.81°WChinle — 34.44°N, 109.46°WWashakie — 40.60°N, 108.10°WWashakie — 41.70°N, 109.00°WLockatong — 40.81°N, 74.02°WLockatong — 40.18°N, 75.31°WSanta Rosa — 35.53°N, 105.75°WSanta Rosa — 35.37°N, 105.85°WNew Oxford — 40.05°N, 76.77°WNew Oxford — 40.02°N, 76.73°WCumnock — 35.55°N, 79.25°WCumnock — 35.56°N, 79.29°WSantiago — 33.10°N, 117.29°WBull Canyon — 35.37°N, 103.38°WTecovas — 34.96°N, 101.70°WPassaic — 40.79°N, 74.15°WBluewater Creek — 34.90°N, 107.73°WTravesser — 36.97°N, 103.21°WBlomidon — 44.57°N, 65.92°WPekin — 35.00°N, 80.08°W

Loading coastlines…

The named rock units Metarhinus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Metarhinus and its relatives

Eocene

Where Metarhinus and its relatives were recorded in the Eocene.

Found in the same rock

275 taxa

The Paleobiology Database records 39 sites for Metarhinus, 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

33 references

Each of the 47 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. 21 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 Metarhinus

Credit
Nikhil Iyengar
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

Laser scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Metarhinus fluviatilis · FMNH:P:12187

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 itBrontotheriinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Osborn 1908