Borophagus secundus

Borophagus secundus is an extinct species of the genus Borophagus of the subfamily Borophaginae, a group of canids endemic to North America during the Late Miocene to Early Pliocene from 9 to 5 Ma. Borophagus secundus existed for approximately 4 million years.

Borophagus secundus

Xiaoming Wang Is a corresponding author, Stuart C White, Mairin Balisi, Jacob Biewer, Julia Sankey, Dennis Garber, Z… · CC BY 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
BorophagusPBDB
Diet
carnivorePBDB, for Borophagus
Life habit
ground dwellingPBDB, for Canidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 7.8 million years on record.

Every occurrence read is dated to somewhere between 12.5 Mya and 4.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 31 of 35 occurrencesMiocenePliocene — about 4 of 35 occurrencesPliocene13–12 Mya — about 0.1 occurrences12–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–12 Mya — about 0.2 occurrences12–11 Mya — about 0.3 occurrences11–11 Mya — about 0.3 occurrences11–11 Mya — about 0.3 occurrences11–10 Mya — about 0.3 occurrences10–10 Mya — about 0.3 occurrences10–9.8 Mya — about 0.3 occurrences9.8–9.5 Mya — about 0.3 occurrences9.5–9.2 Mya — about 2 occurrences9.2–8.9 Mya — about 2 occurrences8.9–8.6 Mya — about 2 occurrences8.6–8.3 Mya — about 2 occurrences8.3–8.0 Mya — about 2 occurrences8.0–7.7 Mya — about 2 occurrences7.7–7.4 Mya — about 2 occurrences7.4–7.1 Mya — about 2 occurrences7.1–6.8 Mya — about 2 occurrences6.8–6.5 Mya — about 2 occurrences6.5–6.3 Mya — about 2 occurrences6.3–6.0 Mya — about 2 occurrences6.0–5.7 Mya — about 2 occurrences5.7–5.4 Mya — about 2 occurrences5.4–5.1 Mya — about 2 occurrences5.1–4.8 Mya — about 2 occurrences4.8–4.5 Mya — about 0.6 occurrences13 Mya4.2 Mya

35 occurrences of Borophagus secundus 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

35 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

13 formations

Gracias — 14.60°N, 88.50°WOgallala — 35.70°N, 102.30°WOgallala — 36.70°N, 101.40°WOgallala — 35.54°N, 99.86°WRancho Viejo Beds — 21.08°N, 100.67°WRancho Viejo Beds — 21.10°N, 100.80°WRancho Viejo Beds — 21.00°N, 100.70°WSnake Creek — 42.40°N, 103.80°WGoodnight Beds — 35.00°N, 101.30°WPunchbowl — 34.00°N, 118.20°WMt. Eden — 33.90°N, 117.00°WChamita — 36.50°N, 107.00°WMehrten — 37.60°N, 120.80°WHorned Toad — 35.30°N, 118.50°WDrewsey — 43.75°N, 118.10°WJuchipila — 21.71°N, 102.96°WMcKay — 45.50°N, 118.80°W

Loading coastlines…

The named rock units Borophagus secundus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.

Borophagus secundus and its relatives

Miocene

Where Borophagus secundus and its relatives were recorded in the Miocene.

Found in the same rock

242 taxa

The Paleobiology Database records 34 sites for Borophagus secundus, 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

13 references

Each of the 35 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. 1 further reference is 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 Borophagus secundus

Credit
Xiaoming Wang Is a corresponding author, Stuart C White, Mairin Balisi, Jacob Biewer, Julia Sankey, Dennis Garber, Z…
Licence
CC BY 4.0
Commercial use
the licence allows it

Laser scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Borophagus secundus · YPM:VP:10580

Smithsonian Open Access was 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 itBorophagus through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (VanderHoof 1931)