Jamoytius kerwoodi

Jamoytius kerwoodi is an extinct species of primitive, eel-like jawless fish known from the Patrick Burn Formation in Scotland, dating to the Llandovery epoch of the Early Silurian period.

Jamoytius kerwoodi

Apokryltaros at English Wikipedia · CC BY 2.5 · 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
JamoytiusPBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At most 8 million years on record.

Every occurrence read is dated to somewhere between 438.6 Mya and 430.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Silurian — about 2 of 2 occurrencesSilurian439–439 Mya — about 0.0 occurrences439–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–433 Mya — about 0.1 occurrences433–433 Mya — about 0.1 occurrences433–433 Mya — about 0.1 occurrences433–433 Mya — about 0.0 occurrences433–432 Mya — about 0.0 occurrences432–432 Mya — about 0.0 occurrences432–432 Mya — about 0.0 occurrences432–431 Mya — about 0.0 occurrences431–431 Mya — about 0.0 occurrences431–431 Mya — about 0.0 occurrences431–430 Mya — about 0.0 occurrences439.1 Mya430.1 Mya

2 occurrences of Jamoytius kerwoodi on record, most of them in the Silurian. 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

2 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

1 formation

Patrick Burn — 55.61°N, 3.99°W

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The named rock units Jamoytius kerwoodi has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Jamoytius kerwoodi and its relatives

Silurian

Where Jamoytius kerwoodi and its relatives were recorded in the Silurian.

Found in the same rock

11 taxa

The Paleobiology Database records 2 sites for Jamoytius kerwoodi, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 2 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. 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 Jamoytius kerwoodi

Credit
Apokryltaros at English Wikipedia
Licence
CC BY 2.5
Commercial use
the licence allows it

No 3D scan of Jamoytius kerwoodi was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itJamoytius through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. White 1946