Oldfieldthomasiidae

Oldfieldthomasiidae is an extinct family of notoungulate mammals known from the Late Paleocene to Late Eocene of South America. The family was classified by George Gaylord Simpson in 1945 and a synonym is Acoelodidae, defined by Florentino Ameghino in 1901.

No picture of Oldfieldthomasiidae was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Oldfieldthomasiidae, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
NotoungulataPBDB
Diet
herbivorePBDB, for Notoungulata
Life habit
scansorialPBDB, for Eutheria
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 18 million years on record.

The record covers at least 56 Mya to 37.71 Mya. No occurrence read is dated outside 59.24 Mya to 15.98 Mya.

Paleocene — about 4 of 88 occurrencesPaleoceneEocene — about 83 of 88 occurrencesEoceneOligocene — about 0 of 88 occurrencesOligoceneMiocene — about 0 of 88 occurrencesMiocene60–59 Mya — about 0.2 occurrences59–57 Mya — about 0.5 occurrences57–56 Mya — about 4 occurrences56–54 Mya — about 3 occurrences54–53 Mya — about 3 occurrences53–51 Mya — about 3 occurrences51–50 Mya — about 3 occurrences50–48 Mya — about 3 occurrences48–47 Mya — about 5 occurrences47–45 Mya — about 5 occurrences45–44 Mya — about 5 occurrences44–42 Mya — about 5 occurrences42–41 Mya — about 9 occurrences41–39 Mya — about 18 occurrences39–38 Mya — about 17 occurrences38–36 Mya — about 3 occurrences36–35 Mya — about 2 occurrences35–33 Mya — about 1 occurrence33–32 Mya — about 0.0 occurrences32–30 Mya — about 0.0 occurrences30–29 Mya — about 0.0 occurrences29–27 Mya — about 0.0 occurrences27–26 Mya — about 0.0 occurrences26–24 Mya — about 0.0 occurrences24–23 Mya — about 0.0 occurrences23–21 Mya — about 0.0 occurrences21–20 Mya — about 0.0 occurrences20–18 Mya — about 0.0 occurrences18–17 Mya — about 0.0 occurrences17–15 Mya — about 0.0 occurrences56 Mya37.71 Mya60.1 Mya15.1 Mya

88 occurrences of Oldfieldthomasiidae 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

88 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

12 formations

Sarmiento — 44.42°S, 68.67°WSarmiento — 44.83°S, 68.25°WSarmiento — 45.33°S, 68.00°WSarmiento — 45.67°S, 68.67°WLas Flores — 45.37°S, 67.74°WLas Flores — 45.60°S, 69.08°WLas Flores — 45.40°S, 67.18°WGeste — 26.06°S, 67.41°WItaboraí — 22.84°S, 42.88°WPuesto Fortunata — 36.84°S, 69.26°WPuesto Fortunata — 36.59°S, 69.44°WQuebrada de los Colorados — 25.22°S, 66.03°WLumbrera — 25.52°S, 65.53°WLumbrera — 25.72°S, 65.40°WDivisadero Largo — 32.87°S, 68.94°WAbanico — 34.83°S, 70.50°WVaca Mahuida — 37.37°S, 67.62°WCayara — 19.05°S, 66.53°WGuabirotuba — 25.51°S, 49.34°W

Loading coastlines…

The named rock units Oldfieldthomasiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 occurrences have no formation on record, which is common for older literature.

Oldfieldthomasiidae and its relatives

Eocene

Where Oldfieldthomasiidae and its relatives were recorded in the Eocene.

Found in the same rock

355 taxa

The Paleobiology Database records 42 sites for Oldfieldthomasiidae, 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

27 references

Each of the 88 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. 15 further references are 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 content0

No picture of Oldfieldthomasiidae was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Oldfieldthomasiidae, or no answer at all. This entry cannot say which.

No 3D scan of Oldfieldthomasiidae 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 itNotoungulata through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Simpson 1945