Iru concava

Iru concava

Orviku, Karl · CC BY-NC 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
IruPBDB
Diet
suspension feederPBDB, for Billingsellida
Life habit
epifaunalPBDB, for Billingsellida
Motility
stationary, attachedPBDB, for Billingsellida
Vision
blindPBDB, for Strophomenata
Environment
marinePBDB, for Lophophorata

Time the record covers

At most 7.8 million years on record.

Every occurrence read is dated to somewhere between 472.1 Mya and 464.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 3 of 3 occurrencesOrdovician472–472 Mya — about 0.0 occurrences472–472 Mya — about 0.0 occurrences472–471 Mya — about 0.0 occurrences471–471 Mya — about 0.0 occurrences471–471 Mya — about 0.0 occurrences471–471 Mya — about 0.0 occurrences471–470 Mya — about 0.0 occurrences470–470 Mya — about 0.0 occurrences470–470 Mya — about 0.0 occurrences470–469 Mya — about 0.0 occurrences469–469 Mya — about 0.1 occurrences469–469 Mya — about 0.2 occurrences469–468 Mya — about 0.2 occurrences468–468 Mya — about 0.2 occurrences468–468 Mya — about 0.2 occurrences468–468 Mya — about 0.2 occurrences468–467 Mya — about 0.2 occurrences467–467 Mya — about 0.2 occurrences467–467 Mya — about 0.2 occurrences467–466 Mya — about 0.2 occurrences466–466 Mya — about 0.2 occurrences466–466 Mya — about 0.2 occurrences466–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–465 Mya — about 0.1 occurrences465–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–464 Mya — about 0.0 occurrences472.6 Mya463.8 Mya

3 occurrences of Iru concava on record, most of them in the Ordovician. 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

3 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

Pakri Sandstone — 59.34°N, 23.98°EObukhovskaya — 58.13°N, 32.27°E

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The named rock units Iru concava 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.

Iru concava and its relatives

Ordovician

Where Iru concava and its relatives were recorded in the Ordovician.

Found in the same rock

36 taxa

The Paleobiology Database records 3 sites for Iru concava, 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

2 references

Each of the 3 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 the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Iru concava

Source
GBIF
Credit
Orviku, Karl
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No repository was searched for a 3D scan: the genus name is too short to search on without matching most of the record.

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

Keep going

What may have been alongside itIru through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Pahlen 1877)