Tetrorchidium sp.

A picture published with the record for Tetrorchidium sp.. What it shows has not been checked.

Smithsonian Institution · CC0 · via Smithsonian. 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.

Time the record covers

At most 32 million years on record.

Every occurrence read is dated to somewhere between 33.9 Mya and 2.58 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 0 of 13 occurrencesOligocene — about 8 of 13 occurrencesOligoceneMiocene — about 5 of 13 occurrencesMiocenePliocene — about 0 of 13 occurrencesPliocenePleistocene — about 0 of 13 occurrences35–33 Mya — about 0.3 occurrences33–32 Mya — about 0.8 occurrences32–31 Mya — about 0.8 occurrences31–30 Mya — about 0.8 occurrences30–29 Mya — about 0.8 occurrences29–28 Mya — about 0.8 occurrences28–27 Mya — about 0.8 occurrences27–26 Mya — about 0.8 occurrences26–25 Mya — about 0.8 occurrences25–24 Mya — about 0.8 occurrences24–23 Mya — about 0.7 occurrences23–21 Mya — about 0.7 occurrences21–20 Mya — about 0.7 occurrences20–19 Mya — about 0.7 occurrences19–18 Mya — about 0.7 occurrences18–17 Mya — about 0.7 occurrences17–16 Mya — about 0.7 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–9.6 Mya — about 0.1 occurrences9.6–8.5 Mya — about 0.1 occurrences8.5–7.4 Mya — about 0.1 occurrences7.4–6.3 Mya — about 0.1 occurrences6.3–5.2 Mya — about 0.1 occurrences5.2–4.1 Mya — about 0.1 occurrences4.1–3.0 Mya — about 0.1 occurrences3.0–2.0 Mya — about 0.0 occurrences34.5 Mya2 Mya

13 occurrences of Tetrorchidium sp. on record, most of them in the Oligocene. 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

13 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

2 formations

San Sebastian — 18.30°N, 66.88°WSan Sebastian — 18.37°N, 66.19°WCulebra — 9.03°N, 79.63°W

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The named rock units Tetrorchidium sp. has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Tetrorchidium sp. and its relatives

Oligocene

Where Tetrorchidium sp. and its relatives were recorded in the Oligocene.

Found in the same rock

67 taxa

The Paleobiology Database records 13 sites for Tetrorchidium sp., 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

3 references

Each of the 13 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Tetrorchidium sp.

Source
Smithsonian
Credit
Smithsonian Institution
Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.