Trigonostylopidae

Trigonostylops is an extinct genus of South American meridiungulatan ungulate, from the Late Paleocene to Late Eocene of South America and Antarctica. It is the only member of the family Trigonostylopidae.

Trigonostylopidae

Rextron · 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
AstrapotheriaPBDB
Diet
herbivorePBDB, for Astrapotheria
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 57 Mya to 27.3 Mya.

Paleocene — about 4 of 71 occurrencesEocene — about 66 of 71 occurrencesEoceneOligocene — about 1 of 71 occurrencesOligocene58–57 Mya — about 2 occurrences57–56 Mya — about 3 occurrences56–55 Mya — about 2 occurrences55–53 Mya — about 2 occurrences53–52 Mya — about 2 occurrences52–51 Mya — about 2 occurrences51–50 Mya — about 2 occurrences50–49 Mya — about 2 occurrences49–48 Mya — about 2 occurrences48–47 Mya — about 2 occurrences47–46 Mya — about 2 occurrences46–45 Mya — about 2 occurrences45–44 Mya — about 2 occurrences44–43 Mya — about 2 occurrences43–42 Mya — about 2 occurrences42–41 Mya — about 2 occurrences41–40 Mya — about 11 occurrences40–39 Mya — about 12 occurrences39–38 Mya — about 12 occurrences38–37 Mya — about 4 occurrences37–36 Mya — about 0.6 occurrences36–35 Mya — about 0.4 occurrences35–34 Mya — about 0.4 occurrences34–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.0 occurrences56 Mya37.71 Mya57.6 Mya26.7 Mya

71 occurrences of Trigonostylopidae 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

71 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

9 formations

Sarmiento — 44.38°S, 68.75°WSarmiento — 44.42°S, 68.67°WSarmiento — 44.83°S, 68.25°WSarmiento — 45.33°S, 68.00°WSarmiento — 45.67°S, 68.67°WSarmiento — 46.74°S, 67.11°WSarmiento — 45.77°S, 69.00°WSarmiento — 45.95°S, 69.20°WSarmiento — 45.78°S, 68.47°WLas Flores — 45.37°S, 67.74°WLas Flores — 45.40°S, 67.18°WLas Flores — 45.60°S, 69.08°WLa Meseta — 64.23°S, 56.63°WLa Meseta — 64.23°S, 56.66°WItaboraí — 22.84°S, 42.88°WLumbrera — 25.80°S, 65.44°WCasamayor — 47.72°S, 66.70°WPozo — 7.33°S, 74.95°WDivisadero Largo — 32.87°S, 68.94°WLas Chacras — 41.36°S, 69.62°W

Loading coastlines…

The named rock units Trigonostylopidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.

Trigonostylopidae and its relatives

Eocene

Where Trigonostylopidae and its relatives were recorded in the Eocene.

Found in the same rock

319 taxa

The Paleobiology Database records 36 sites for Trigonostylopidae, 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

24 references

Each of the 71 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. 12 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 content1

Picture of Trigonostylopidae

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

No 3D scan of Trigonostylopidae 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 itAstrapotheria through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1901