Tetrastylus

Tetrastylus

Uncredited · via Wikidata/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
EumegamyinaePBDB
Diet
frugivore, folivorePBDB, for Dinomyidae
Life habit
ground dwellingPBDB, for Dinomyidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 5.4 million years on record.

The record covers at least 8 Mya to 2.58 Mya. No occurrence read is dated outside 11.63 Mya to 11.7 ka.

Miocene — about 29 of 34 occurrencesMiocenePliocene — about 4 of 34 occurrencesPliocenePleistocene — about 1 of 34 occurrencesPleistoceneHolocene — about 0 of 34 occurrences12–11 Mya — about 0.3 occurrences11–11 Mya — about 0.4 occurrences11–11 Mya — about 0.4 occurrences11–10 Mya — about 0.4 occurrences10–9.7 Mya — about 0.6 occurrences9.7–9.3 Mya — about 0.6 occurrences9.3–8.9 Mya — about 0.6 occurrences8.9–8.5 Mya — about 0.6 occurrences8.5–8.1 Mya — about 0.6 occurrences8.1–7.7 Mya — about 3 occurrences7.7–7.3 Mya — about 3 occurrences7.3–6.9 Mya — about 4 occurrences6.9–6.5 Mya — about 4 occurrences6.5–6.1 Mya — about 4 occurrences6.1–5.7 Mya — about 4 occurrences5.7–5.3 Mya — about 4 occurrences5.3–4.9 Mya — about 2 occurrences4.9–4.4 Mya — about 0.2 occurrences4.4–4.0 Mya — about 0.2 occurrences4.0–3.6 Mya — about 0.4 occurrences3.6–3.2 Mya — about 0.7 occurrences3.2–2.8 Mya — about 0.4 occurrences2.8–2.4 Mya — about 0.1 occurrences2.4–2.0 Mya — about 0.2 occurrences2.0–1.6 Mya — about 0.2 occurrences1.6–1.2 Mya — about 0.2 occurrences1.2–809 ka Mya — about 0.2 occurrences809 ka–404 ka Mya — about 0.2 occurrences404 ka–0 Mya — about 0.2 occurrences8 Mya2.58 Mya12.1 Mya0 Mya

34 occurrences of Tetrastylus 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

34 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

10 formations

Chiquimil — 26.80°S, 66.07°WChiquimil — 27.22°S, 66.93°WChiquimil — 27.11°S, 66.83°WCerro Azul — 35.69°S, 64.67°WCerro Azul — 36.25°S, 65.51°WCerro Azul — 37.37°S, 65.47°WCerro Azul — 36.72°S, 64.30°WCerro Azul — 37.28°S, 64.15°WItuzaingo — 31.48°S, 60.23°WSolimoes — 10.93°S, 69.92°WSolimoes — 7.66°S, 72.54°WSolimoes — 10.12°S, 66.88°WEpecuén — 37.22°S, 63.55°WUrumaco — 11.18°N, 70.23°WArroyo Chasicó — 38.62°S, 62.98°WAndalhuala — 26.68°S, 66.03°WCamacho — 34.57°S, 56.97°WCorral Quemado — 26.97°S, 66.84°W

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The named rock units Tetrastylus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Tetrastylus and its relatives

Miocene

Where Tetrastylus and its relatives were recorded in the Miocene.

Found in the same rock

425 taxa

The Paleobiology Database records 14 sites for Tetrastylus, 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

13 references

Each of the 34 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. 1 further reference is 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 Tetrastylus

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Tetrastylus 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 itEumegamyinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ameghino 1886