Cynarctoides roii

Cynarctoides is an extinct genus of the Borophaginae subfamily of canids endemic to North America. It lived from the Early Oligocene to the Middle Miocene, 33.3—13.6 Mya, existing for approximately 19.7 million years. Seven species are currently recognised, all of which are estimated to have weighed no more than 1 kilogram (2.2 lb).

Cynarctoides roii

Ted Fremd · 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
CynarctoidesPBDB
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 most 4.8 million years on record.

Every occurrence read is dated to somewhere between 29.5 Mya and 24.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 9 of 9 occurrencesOligocene30–29 Mya — about 0.1 occurrences29–29 Mya — about 0.4 occurrences29–29 Mya — about 0.4 occurrences29–29 Mya — about 0.4 occurrences29–29 Mya — about 0.4 occurrences29–28 Mya — about 0.4 occurrences28–28 Mya — about 0.4 occurrences28–28 Mya — about 0.4 occurrences28–28 Mya — about 0.4 occurrences28–28 Mya — about 0.4 occurrences28–27 Mya — about 0.4 occurrences27–27 Mya — about 0.4 occurrences27–27 Mya — about 0.4 occurrences27–27 Mya — about 0.4 occurrences27–27 Mya — about 0.4 occurrences27–27 Mya — about 0.4 occurrences27–26 Mya — about 0.4 occurrences26–26 Mya — about 0.4 occurrences26–26 Mya — about 0.4 occurrences26–26 Mya — about 0.4 occurrences26–26 Mya — about 0.4 occurrences26–25 Mya — about 0.4 occurrences25–25 Mya — about 0.4 occurrences25–25 Mya — about 0.4 occurrences25–25 Mya — about 0.4 occurrences25–25 Mya — about 0.1 occurrences30 Mya24.2 Mya

9 occurrences of Cynarctoides roii 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

9 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

1 formation

Sharps — 43.30°N, 102.50°W

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The named rock units Cynarctoides roii 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.

Cynarctoides roii and its relatives

Oligocene

Where Cynarctoides roii and its relatives were recorded in the Oligocene.

Found in the same rock

58 taxa

The Paleobiology Database records 9 sites for Cynarctoides roii, 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

3 references

Each of the 9 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Cynarctoides roii

Credit
Ted Fremd
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Cynarctoides roii was found in MorphoSource and Sketchfab.

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 itCynarctoides through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Macdonald 1963)