Amphiperatherium

Amphiperatherium is an extinct genus of metatherian mammal, closely related to marsupials. It ranged from the Early Eocene to the Middle Miocene in Europe. It is the most recent metatherian known from the continent.

Amphiperatherium

Ghedoghedo · CC BY-SA 3.0 · 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
HerpetotheriidaePBDB
Diet
omnivorePBDB, for Marsupialia
Life habit
ground dwellingPBDB, for Herpetotheriidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At least 34 million years on record.

The record covers at least 48.07 Mya to 13.82 Mya. No occurrence read is dated outside 56 Mya to 12.75 Mya.

Paleocene — about 0 of 103 occurrencesEocene — about 61 of 103 occurrencesEoceneOligocene — about 26 of 103 occurrencesOligoceneMiocene — about 16 of 103 occurrencesMiocene57–55 Mya — about 1 occurrence55–54 Mya — about 3 occurrences54–52 Mya — about 3 occurrences52–51 Mya — about 3 occurrences51–49 Mya — about 3 occurrences49–48 Mya — about 2 occurrences48–46 Mya — about 2 occurrences46–45 Mya — about 2 occurrences45–43 Mya — about 2 occurrences43–42 Mya — about 2 occurrences42–40 Mya — about 2 occurrences40–39 Mya — about 3 occurrences39–37 Mya — about 5 occurrences37–36 Mya — about 12 occurrences36–34 Mya — about 12 occurrences34–33 Mya — about 6 occurrences33–31 Mya — about 3 occurrences31–30 Mya — about 3 occurrences30–28 Mya — about 3 occurrences28–27 Mya — about 3 occurrences27–25 Mya — about 5 occurrences25–24 Mya — about 5 occurrences24–22 Mya — about 4 occurrences22–21 Mya — about 2 occurrences21–19 Mya — about 2 occurrences19–18 Mya — about 2 occurrences18–16 Mya — about 2 occurrences16–15 Mya — about 3 occurrences15–13 Mya — about 3 occurrences13–12 Mya — about 1 occurrence48.07 Mya13.82 Mya56.9 Mya11.9 Mya

103 occurrences of Amphiperatherium 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

103 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

23 formations

Bembridge Limestone — 50.67°N, 1.53°WBembridge Limestone — 50.67°N, 1.55°WHeadon Hill — 50.72°N, 1.59°WHeadon Hill — 50.67°N, 1.54°WHeadon Hill — 50.72°N, 1.22°WLower Freshwater Molasse — 48.35°N, 9.86°ELignites de Soissonais — 43.62°N, 5.75°EBorgloon — 50.85°N, 4.82°ECreechbarrow Limestone — 50.65°N, 2.12°WWittering — 51.08°N, 1.17°WWittering — 50.94°N, 1.33°WPerriere — 44.35°N, 1.73°EPerrière — 44.37°N, 1.73°EPerrière — 44.38°N, 1.43°EBlackheath Beds — 51.43°N, 0.15°EMarsh Farm — 50.76°N, 0.84°WVille — 50.90°N, 6.45°EBrackwater Molasse — 48.48°N, 10.10°ECalcaire de Ventenac — 43.08°N, 2.50°EUpper Freshwater Molasse — 48.66°N, 10.23°EVaugirard — 48.81°N, 2.24°EHeadon Beds — 50.72°N, 1.59°WLower Hamstead Beds — 50.70°N, 1.50°WTienen — 50.82°N, 5.10°ELower Headon Beds — 50.67°N, 1.53°WBembridge Marls — 50.75°N, 1.33°WDetritic-Carbonated Unit of Subirats — 41.42°N, 1.81°ELignitifero — 39.25°N, 8.43°E

Loading coastlines…

The named rock units Amphiperatherium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 60 occurrences have no formation on record, which is common for older literature.

Amphiperatherium and its relatives

Eocene

Where Amphiperatherium and its relatives were recorded in the Eocene.

Found in the same rock

1,274 taxa

The Paleobiology Database records 68 sites for Amphiperatherium, 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

45 references

Each of the 103 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. 33 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 Amphiperatherium

Credit
Ghedoghedo
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itHerpetotheriidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Filhol 1879