Pachyrukhos

Pachyrukhos is an extinct genus of hegetotheriid notoungulate from the Early to Middle Miocene of Argentina and Chile. Fossils of this genus have been found in the Collón Curá, Sarmiento and Santa Cruz Formations of Argentina and the Río Frías Formation of Chile.

Pachyrukhos

William John Sinclair (1877–1935) · 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
PachyrukhiniPBDB
Diet
herbivorePBDB, for Notoungulata
Life habit
scansorialPBDB, for Eutheria
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 2 million years on record.

The record covers at least 17.5 Mya to 15.5 Mya. No occurrence read is dated outside 21 Mya to 11 Mya.

Miocene — about 22 of 22 occurrencesMiocene21–21 Mya — about 0.2 occurrences21–20 Mya — about 0.4 occurrences20–20 Mya — about 0.5 occurrences20–20 Mya — about 0.5 occurrences20–19 Mya — about 0.5 occurrences19–19 Mya — about 0.5 occurrences19–19 Mya — about 0.5 occurrences19–18 Mya — about 0.5 occurrences18–18 Mya — about 0.5 occurrences18–17 Mya — about 0.8 occurrences17–17 Mya — about 3 occurrences17–17 Mya — about 3 occurrences17–16 Mya — about 3 occurrences16–16 Mya — about 2 occurrences16–16 Mya — about 1 occurrence16–15 Mya — about 0.8 occurrences15–15 Mya — about 0.5 occurrences15–15 Mya — about 0.5 occurrences15–14 Mya — about 0.5 occurrences14–14 Mya — about 0.5 occurrences14–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–13 Mya — about 0.2 occurrences13–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–11 Mya — about 0.1 occurrences11–11 Mya — about 0.0 occurrences17.5 Mya15.5 Mya21.5 Mya10.5 Mya

22 occurrences of Pachyrukhos 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

22 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

7 formations

Santa Cruz — 51.58°S, 69.23°WSanta Cruz — 51.57°S, 69.47°WSanta Cruz — 51.57°S, 69.42°WSanta Cruz — 47.52°S, 71.90°WSanta Cruz — 50.28°S, 70.28°WSanta Cruz — 50.28°S, 70.22°WSanta Cruz — 50.60°S, 69.08°WSanta Cruz — 50.55°S, 69.22°WSanta Cruz — 51.33°S, 69.02°WSanta Cruz — 51.57°S, 68.95°WSarmiento — 45.67°S, 68.67°WSarmiento — 44.00°S, 68.67°WSarmiento — 44.34°S, 65.25°WCollón Cura — 41.00°S, 70.58°WCollón Cura — 42.65°S, 69.70°WCura-Mallín — 37.65°S, 71.23°WRío Frías — 44.58°S, 71.23°WRío Frias — 44.58°S, 71.22°WCerro Boleadoras — 47.00°S, 71.62°W

Loading coastlines…

The named rock units Pachyrukhos 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.

Pachyrukhos and its relatives

Miocene

Where Pachyrukhos and its relatives were recorded in the Miocene.

Found in the same rock

197 taxa

The Paleobiology Database records 18 sites for Pachyrukhos, 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

14 references

Each of the 22 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. 2 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 Pachyrukhos

Credit
William John Sinclair (1877–1935)
Licence
Public Domain
Commercial use
the licence allows it

Photogrammetry

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Pachyrukhos moyani · NHMUK:PAL:PV M 5700

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 itPachyrukhini through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1885