Onchus murchisoni

Onchus murchisoni

Agassiz, 1837 · CC BY-SA 4.0 · 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
OnchusPBDB
Diet
carnivorePBDB, for Acanthodii
Life habit
nektonicPBDB, for Acanthodii
Motility
actively mobilePBDB, for Acanthodii

Time the record covers

At most 3.1 million years on record.

Every occurrence read is dated to somewhere between 422.7 Mya and 419.62 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Silurian — about 3 of 3 occurrencesSilurianDevonian — about 0 of 3 occurrences423–423 Mya — about 0.0 occurrences423–423 Mya — about 0.1 occurrences423–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–422 Mya — about 0.1 occurrences422–421 Mya — about 0.2 occurrences421–421 Mya — about 0.2 occurrences421–421 Mya — about 0.2 occurrences421–421 Mya — about 0.2 occurrences421–421 Mya — about 0.2 occurrences421–421 Mya — about 0.2 occurrences421–421 Mya — about 0.2 occurrences421–420 Mya — about 0.2 occurrences420–420 Mya — about 0.2 occurrences420–420 Mya — about 0.2 occurrences420–420 Mya — about 0.2 occurrences420–420 Mya — about 0.2 occurrences420–420 Mya — about 0.2 occurrences420–420 Mya — about 0.2 occurrences420–420 Mya — about 0.1 occurrences423.2 Mya419.12 Mya

3 occurrences of Onchus murchisoni 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

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

Temeside Shale — 52.37°N, 2.73°WRaglan Marl — 51.71°N, 2.51°W

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The named rock units Onchus murchisoni 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.

Onchus murchisoni and its relatives

Silurian

Where Onchus murchisoni and its relatives were recorded in the Silurian.

Found in the same rock

42 taxa

The Paleobiology Database records 3 sites for Onchus murchisoni, 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. 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 Onchus murchisoni

Credit
Agassiz, 1837
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Onchus murchisoni 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.

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

Keep going

What may have been alongside itOnchus through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1837