Hesperocyon gregarius

Hesperocyon gregarius

via iDigBio · CC0 · via iDigBio. 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
HesperocyonPBDB
Diet
carnivore, omnivorePBDB, for Canidae
Life habit
ground dwellingPBDB, for Canidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 7.5 million years on record.

The record covers at least 37 Mya to 29.5 Mya. No occurrence read is dated outside 39.7 Mya to 18.5 Mya.

Eocene — about 42 of 136 occurrencesEoceneOligocene — about 94 of 136 occurrencesOligoceneMiocene — about 0 of 136 occurrencesMiocene40–39 Mya — about 0.1 occurrences39–39 Mya — about 0.3 occurrences39–38 Mya — about 0.3 occurrences38–37 Mya — about 0.3 occurrences37–37 Mya — about 7 occurrences37–36 Mya — about 10 occurrences36–35 Mya — about 10 occurrences35–34 Mya — about 10 occurrences34–34 Mya — about 20 occurrences34–33 Mya — about 30 occurrences33–32 Mya — about 30 occurrences32–31 Mya — about 12 occurrences31–31 Mya — about 2 occurrences31–30 Mya — about 2 occurrences30–29 Mya — about 1 occurrence29–28 Mya — about 0.1 occurrences28–28 Mya — about 0.1 occurrences28–27 Mya — about 0.1 occurrences27–26 Mya — about 0.1 occurrences26–25 Mya — about 0.1 occurrences25–25 Mya — about 0.1 occurrences25–24 Mya — about 0.1 occurrences24–23 Mya — about 0.1 occurrences23–22 Mya — about 0.1 occurrences22–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–18 Mya — about 0.0 occurrences37 Mya29.5 Mya40.2 Mya18 Mya

136 occurrences of Hesperocyon gregarius on record, most of them in the Oligocene. 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

136 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

9 formations

Brule — 42.90°N, 105.20°WBrule — 42.80°N, 103.10°WBrule — 42.40°N, 103.80°WBrule — 40.80°N, 103.10°WBrule — 43.30°N, 102.50°WBrule — 46.90°N, 102.80°WBrule — 42.00°N, 104.20°WBrule — 41.80°N, 103.80°WBrule — 43.90°N, 102.40°WBrule — 46.40°N, 103.30°WBrule — 41.70°N, 103.10°WWhite River — 43.20°N, 107.10°WWhite River — 43.20°N, 108.20°WWhite River — 40.80°N, 103.10°WWhite River — 40.97°N, 106.22°WChadron — 42.80°N, 103.10°WChadron — 42.80°N, 103.40°WChadron — 42.40°N, 103.80°WChadron — 46.10°N, 103.30°WChadron — 43.30°N, 102.50°WChadron — 42.75°N, 103.65°WRenova — 46.00°N, 112.00°WRenova — 45.90°N, 112.25°WCypress Hills — 50.00°N, 107.90°WCypress Hills — 49.57°N, 109.88°WCypress Hills — 49.60°N, 108.80°WSage Creek — 45.00°N, 112.80°WCook Ranch — 45.00°N, 112.80°WDunbar Creek — 45.70°N, 111.00°WJohn Day — 44.70°N, 119.63°W

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The named rock units Hesperocyon gregarius has been recovered from, largest first. Drawn where the rock is now, not where it formed. 48 occurrences have no formation on record, which is common for older literature.

Hesperocyon gregarius and its relatives

Oligocene

Where Hesperocyon gregarius and its relatives were recorded in the Oligocene.

Found in the same rock

546 taxa

The Paleobiology Database records 136 sites for Hesperocyon gregarius, 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

22 references

Each of the 136 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. 10 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 Hesperocyon gregarius

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itHesperocyon through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1873)