Eucosmodon ultimus

Neoliotomus ultimus (Granger & Simpson, 1928), a relative of Eucosmodon ultimus — not Eucosmodon ultimus itself

Not Eucosmodon ultimus. This is Neoliotomus ultimus (Granger & Simpson, 1928), a relative — both are Eucosmodontidae.

Yale Peabody Museum · CC0 · via GBIF. 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
EucosmodonPBDB
Diet
herbivorePBDB, for Eucosmodon
Life habit
arborealPBDB, for Eucosmodon
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At most 6.4 million years on record.

Every occurrence read is dated to somewhere between 57.5 Mya and 51.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 1 of 38 occurrencesPaleoceneEocene — about 37 of 38 occurrencesEocene58–57 Mya — about 0.2 occurrences57–57 Mya — about 0.2 occurrences57–57 Mya — about 0.2 occurrences57–57 Mya — about 0.2 occurrences57–56 Mya — about 0.2 occurrences56–56 Mya — about 0.2 occurrences56–56 Mya — about 2 occurrences56–56 Mya — about 2 occurrences56–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–53 Mya — about 2 occurrences53–53 Mya — about 2 occurrences53–53 Mya — about 2 occurrences53–53 Mya — about 2 occurrences53–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–51 Mya — about 2 occurrences51–51 Mya — about 2 occurrences58 Mya50.6 Mya

38 occurrences of Eucosmodon ultimus on record, most of them in the Eocene. 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

38 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

Willwood — 44.00°N, 108.00°WWillwood — 44.50°N, 108.00°WWillwood — 44.65°N, 108.54°WWillwood — 44.30°N, 109.00°WWillwood — 44.66°N, 108.53°WWillwood — 44.68°N, 108.73°WWasatch — 40.60°N, 108.10°W"Wasatch" — 44.00°N, 106.60°WFort Union — 44.67°N, 108.46°W

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The named rock units Eucosmodon ultimus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Eucosmodon ultimus and its relatives

Eocene

Where Eucosmodon ultimus and its relatives were recorded in the Eocene.

Found in the same rock

169 taxa

The Paleobiology Database records 38 sites for Eucosmodon ultimus, 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

7 references

Each of the 38 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 Neoliotomus ultimus (Granger & Simpson, 1928)

Source
GBIF
Credit
Yale Peabody Museum
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Eucosmodon ultimus 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.

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

Keep going

What may have been alongside itEucosmodon through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Granger and Simpson 1928)