Tylocephalonyx

Tylocephalonyx is an extinct schizotherine chalicothere from the Miocene of North America.

Tylocephalonyx

Jfstudiospaleoart · 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
SchizotheriinaePBDB
Diet
browserPBDB, for Chalicotherioidea
Life habit
ground dwellingPBDB, for Chalicotherioidea
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 320 thousand years on record.

The record covers at least 16.3 Mya to 15.98 Mya. No occurrence read is dated outside 23.04 Mya to 5.333 Mya.

Oligocene — about 0 of 22 occurrencesMiocene — about 22 of 22 occurrencesMiocenePliocene — about 0 of 22 occurrences24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.0 occurrences22–22 Mya — about 0.0 occurrences22–21 Mya — about 0.0 occurrences21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.3 occurrences20–19 Mya — about 0.3 occurrences19–19 Mya — about 0.3 occurrences19–18 Mya — about 5 occurrences18–17 Mya — about 5 occurrences17–17 Mya — about 5 occurrences17–16 Mya — about 3 occurrences16–15 Mya — about 0.3 occurrences15–15 Mya — about 0.3 occurrences15–14 Mya — about 0.3 occurrences14–14 Mya — about 0.3 occurrences14–13 Mya — about 0.3 occurrences13–12 Mya — about 0.2 occurrences12–12 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.8 Mya — about 0.1 occurrences9.8–9.2 Mya — about 0.1 occurrences9.2–8.6 Mya — about 0.1 occurrences8.6–8.0 Mya — about 0.1 occurrences8.0–7.3 Mya — about 0.1 occurrences7.3–6.7 Mya — about 0.1 occurrences6.7–6.1 Mya — about 0.1 occurrences6.1–5.5 Mya — about 0.1 occurrences5.5–4.8 Mya — about 0.0 occurrences16.3 Mya – 15.98 Mya23.5 Mya4.8 Mya

22 occurrences of Tylocephalonyx 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

22 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

7 formations

Sheep Creek — 42.40°N, 103.80°WArikaree — 43.20°N, 108.20°WCalvert — 39.20°N, 75.60°WSalt Lake — 41.50°N, 112.90°WAstoria — 44.70°N, 124.06°W"Madison Valley Equivalent" — 45.20°N, 112.00°WCarpenter Ranch — 42.24°N, 104.22°W

Loading coastlines…

The named rock units Tylocephalonyx 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.

Tylocephalonyx and its relatives

Miocene

Where Tylocephalonyx and its relatives were recorded in the Miocene.

Found in the same rock

329 taxa

The Paleobiology Database records 22 sites for Tylocephalonyx, 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

5 references

Each of the 22 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. 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 Tylocephalonyx

Credit
Jfstudiospaleoart
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Tylocephalonyx 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 itSchizotheriinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Coombs 1979