Osbornodon iamonensis

Osbornodon iamonensis is an extinct species of hesperocyonine, a predecessor of modern dogs that were endemic to North America and which lived from the Oligocene to Early Miocene epoch 23.6—16.3 Ma and existed for approximately 8 million years. It was named for Lake Iamonia in northern Florida. Fossils have been found in Florida and Nebraska. In the Thomas Farm Site in Gilchrist County, Florida, it is the most common carnivore found in that area.

Osbornodon iamonensis

Geekgecko · 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
OsbornodonPBDB
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 14 million years on record.

Every occurrence read is dated to somewhere between 29.5 Mya and 15.98 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 1 of 7 occurrencesOligoceneMiocene — about 6 of 7 occurrencesMiocene30–29 Mya — about 0.1 occurrences29–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–28 Mya — about 0.1 occurrences28–27 Mya — about 0.1 occurrences27–27 Mya — about 0.1 occurrences27–26 Mya — about 0.1 occurrences26–26 Mya — about 0.1 occurrences26–25 Mya — about 0.1 occurrences25–25 Mya — about 0.1 occurrences25–24 Mya — about 0.1 occurrences24–24 Mya — about 0.1 occurrences24–23 Mya — about 0.1 occurrences23–23 Mya — about 0.2 occurrences23–22 Mya — about 0.2 occurrences22–22 Mya — about 0.2 occurrences22–21 Mya — about 0.2 occurrences21–21 Mya — about 0.2 occurrences21–20 Mya — about 0.2 occurrences20–20 Mya — about 0.2 occurrences20–19 Mya — about 0.2 occurrences19–19 Mya — about 0.2 occurrences19–18 Mya — about 0.3 occurrences18–18 Mya — about 0.8 occurrences18–17 Mya — about 0.8 occurrences17–17 Mya — about 0.8 occurrences17–16 Mya — about 0.8 occurrences16–16 Mya — about 0.3 occurrences30 Mya15.5 Mya

7 occurrences of Osbornodon iamonensis 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

7 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

4 formations

Runningwater — 41.70°N, 103.10°WBox Butte — 42.20°N, 103.10°WTorreya — 30.61°N, 84.25°WAlachua — 29.70°N, 82.60°W

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The named rock units Osbornodon iamonensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Osbornodon iamonensis and its relatives

Miocene

Where Osbornodon iamonensis and its relatives were recorded in the Miocene.

Found in the same rock

93 taxa

The Paleobiology Database records 7 sites for Osbornodon iamonensis, 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

4 references

Each of the 7 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 Osbornodon iamonensis

Credit
Geekgecko
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Osbornodon iamonensis 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 itOsbornodon through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Sellards 1916)