Trichosurus

The brushtail possums are the members of the genus Trichosurus in the Phalangeridae, a family of marsupials. They are native to Australia and some small nearby islands. Unique among marsupials, they have shifted the hypaxial muscles from the epipubic to the pelvis, much like in placental mammals, meaning that their breathing cycle is more similar to the latter than to that of other non-eutherian mammals. In general, they are more terrestrially oriented than other possums, and in some ways might parallel primates.

Trichosurus

John Gould · 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
Also called
brushtail possumPBDB
Sits inside
PhalangeridaePBDB
Diet
herbivore, insectivorePBDB, for Phalangeridae
Life habit
arborealPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At least 15 million years on record.

The record covers at least 15.98 Mya to 11.7 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.

Oligocene — about 0 of 29 occurrencesMiocene — about 3 of 29 occurrencesMiocenePliocene — about 3 of 29 occurrencesPliocenePleistocene — about 21 of 29 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences16–15 Mya — about 0.2 occurrences15–14 Mya — about 0.2 occurrences14–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–12 Mya — about 0.2 occurrences12–11 Mya — about 0.2 occurrences11–10 Mya — about 0.2 occurrences10–9.4 Mya — about 0.2 occurrences9.4–8.6 Mya — about 0.2 occurrences8.6–7.8 Mya — about 0.2 occurrences7.8–7.1 Mya — about 0.1 occurrences5.5–4.7 Mya — about 1 occurrence4.7–3.9 Mya — about 1 occurrence3.9–3.1 Mya — about 0.7 occurrences3.1–2.4 Mya — about 1 occurrence2.4–1.6 Mya — about 4 occurrences1.6–785 ka Mya — about 4 occurrences785 ka–0 Mya — about 14 occurrences15.98 Mya11.7 ka23.5 Mya0 Mya

29 occurrences of Trichosurus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

29 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

2 formations

Grange Burn — 37.70°S, 141.95°EGrange Burn — 37.73°S, 141.95°ERowsley — 37.70°S, 144.45°E

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The named rock units Trichosurus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 occurrences have no formation on record, which is common for older literature.

Trichosurus and its relatives

Pleistocene

Where Trichosurus and its relatives were recorded in the Pleistocene.

Found in the same rock

402 taxa

The Paleobiology Database records 28 sites for Trichosurus, 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

23 references

Each of the 29 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. 11 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 Trichosurus

Credit
John Gould
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Trichosurus 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 itPhalangeridae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lesson 1828