Polydolopidae

Polydolops Ameghino, 1897, a relative of Polydolopidae — not Polydolopidae itself

Not Polydolopidae. This is Polydolops Ameghino, 1897, a relative — both are Polydolopidae.

via GBIF · CC BY 4.0 · 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
PolydolopimorphiaPBDB
Diet
omnivorePBDB, for Metatheria
Life habit
scansorialPBDB, for Theria
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At least 32 million years on record.

The record covers at least 61.66 Mya to 29 Mya. No occurrence read is dated outside 66 Mya to 21 Mya.

Late Cretaceous — about 0 of 100 occurrencesPaleocene — about 3 of 100 occurrencesPaleoceneEocene — about 90 of 100 occurrencesEoceneOligocene — about 6 of 100 occurrencesOligoceneMiocene — about 1 of 100 occurrences67–65 Mya — about 0.2 occurrences65–64 Mya — about 0.4 occurrences64–62 Mya — about 0.4 occurrences62–61 Mya — about 0.1 occurrences58–56 Mya — about 2 occurrences56–54 Mya — about 4 occurrences54–53 Mya — about 4 occurrences53–51 Mya — about 4 occurrences51–50 Mya — about 4 occurrences50–48 Mya — about 4 occurrences48–47 Mya — about 6 occurrences47–45 Mya — about 6 occurrences45–44 Mya — about 6 occurrences44–42 Mya — about 6 occurrences42–40 Mya — about 11 occurrences40–39 Mya — about 18 occurrences39–37 Mya — about 13 occurrences37–36 Mya — about 0.5 occurrences36–34 Mya — about 0.7 occurrences34–33 Mya — about 1 occurrence33–31 Mya — about 1 occurrence31–29 Mya — about 1 occurrence29–28 Mya — about 1 occurrence28–26 Mya — about 0.8 occurrences26–25 Mya — about 0.4 occurrences25–23 Mya — about 0.4 occurrences23–22 Mya — about 0.4 occurrences22–20 Mya — about 0.2 occurrences61.66 Mya29 Mya66.9 Mya20.1 Mya

100 occurrences of Polydolopidae 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

100 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

8 formations

Sarmiento — 44.65°S, 68.40°WSarmiento — 44.42°S, 68.67°WSarmiento — 45.67°S, 68.67°WSarmiento — 45.33°S, 68.00°WSarmiento — 44.35°S, 69.78°WSarmiento — 44.17°S, 69.25°WSarmiento — 44.50°S, 68.83°WSarmiento — 45.77°S, 69.00°WSarmiento — 45.00°S, 67.70°WSarmiento — 45.78°S, 68.47°WLa Meseta — 64.24°S, 56.65°WLa Meseta — 64.23°S, 56.67°WAndesitas Huancache — 42.78°S, 69.86°WLas Flores — 45.40°S, 67.18°WLas Flores — 45.37°S, 67.74°WLas Flores — 45.60°S, 69.08°WAbanico — 34.98°S, 70.43°WAbanico — 34.38°S, 70.84°WPeñas Coloradas — 45.27°S, 67.00°WItaboraí — 22.84°S, 42.88°WSalla — 17.18°S, 67.63°W

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The named rock units Polydolopidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 32 occurrences have no formation on record, which is common for older literature.

Polydolopidae and its relatives

Eocene

Where Polydolopidae and its relatives were recorded in the Eocene.

Found in the same rock

542 taxa

The Paleobiology Database records 46 sites for Polydolopidae, 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 100 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 Polydolops Ameghino, 1897

Source
GBIF
Credit
via GBIF
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Polydolopidae 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 itPolydolopimorphia through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1897