Protoreodon

Searched as Agriotherium. The Paleobiology Database treats Protoreodon as the accepted name.

Agriotherium is an extinct genus of bears whose fossils are found in Miocene through Pleistocene-aged strata of Eurasia and Africa. The earliest species, A. inexpetans, evolved during the Late Miocene, around 7.6 Mya. The latest record for the genus was around 1.8 Mya, during the Early Pleistocene.

Protoreodon

Natural History Museum, London · 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
AgriochoeridaePBDB
Diet
herbivorePBDB, for Agriochoeridae
Life habit
scansorialPBDB, for Agriochoeridae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Artiodactyla

Time the record covers

At least 36 million years on record.

The record covers at least 39.7 Mya to 3.6 Mya. No occurrence read is dated outside 45.9 Mya to 1.4 Mya.

Eocene — about 120 of 165 occurrencesEoceneOligocene — about 0 of 165 occurrencesMiocene — about 29 of 165 occurrencesMiocenePliocene — about 16 of 165 occurrencesPleistocene — about 1 of 165 occurrences47–45 Mya — about 9 occurrences45–44 Mya — about 22 occurrences44–42 Mya — about 22 occurrences42–41 Mya — about 22 occurrences41–39 Mya — about 19 occurrences39–38 Mya — about 14 occurrences38–36 Mya — about 7 occurrences36–34 Mya — about 3 occurrences34–33 Mya — about 1 occurrence24–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–19 Mya — about 0.1 occurrences19–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–11 Mya — about 0.3 occurrences11–9.8 Mya — about 1 occurrence9.8–8.2 Mya — about 7 occurrences8.2–6.7 Mya — about 10 occurrences6.7–5.1 Mya — about 11 occurrences5.1–3.6 Mya — about 10 occurrences3.6–2.1 Mya — about 4 occurrences2.1–510 ka Mya — about 0.4 occurrences39.7 Mya3.6 Mya46.8 Mya510 ka

165 occurrences of Protoreodon 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

165 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

42 formations

Uinta — 40.07°N, 109.28°WUinta — 40.20°N, 109.90°WUinta — 40.15°N, 109.62°WUinta — 40.07°N, 109.70°WUinta — 40.20°N, 109.30°WUinta — 40.10°N, 109.23°WSespe — 34.30°N, 119.00°WSantiago — 33.40°N, 117.51°WSantiago — 33.13°N, 117.29°WSantiago — 33.19°N, 117.32°WSantiago — 32.90°N, 117.10°WDevil's Graveyard — 29.90°N, 104.20°WDevil's Graveyard — 29.20°N, 103.20°WColmena Tuff — 29.90°N, 104.20°WWiggins — 43.20°N, 108.20°WWiggins — 43.70°N, 108.70°WDuchesne River — 40.20°N, 109.90°WDuchesne River — 40.10°N, 110.20°WFriars — 32.90°N, 117.10°WMission Valley — 32.90°N, 117.10°WChambers Tuff — 29.90°N, 104.20°WVarswater — 32.98°S, 18.15°EWagon Bed ("Tepee Trail") — 43.20°N, 107.10°WRancho Viejo Beds — 21.08°N, 100.67°WRancho Viejo Beds — 21.10°N, 100.80°WRancho Viejo Beds — 21.00°N, 100.70°WLaredo — 27.53°N, 99.43°WDell Beds — 45.00°N, 112.80°WCypress Hills — 50.20°N, 107.60°WCypress Hills — 50.00°N, 107.90°WSahabi — 30.14°N, 20.75°EWagon Bed — 43.20°N, 108.20°WWashakie — 40.60°N, 108.10°WPomerado — 32.92°N, 117.07°WRenova — 45.00°N, 112.80°WClimbing Arrow — 46.00°N, 112.00°WGalisteo — 35.50°N, 106.20°WBaca — 33.50°N, 108.80°W

Loading coastlines…

The named rock units Protoreodon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 further formations hold fewer occurrences each and are not listed. 27 occurrences have no formation on record, which is common for older literature.

Protoreodon and its relatives

Eocene

Where Protoreodon and its relatives were recorded in the Eocene.

Found in the same rock

656 taxa

The Paleobiology Database records 98 sites for Protoreodon, 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

73 references

Each of the 165 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. 61 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 Protoreodon

Credit
Natural History Museum, London
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Protoreodon 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 itAgriochoeridae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Scott 1898