Leedsichthys problematicus

Leedsichthys problematicus

Dmitry Bogdanov · CC BY 3.0 · 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
LeedsichthysPBDB
Diet
carnivorePBDB, for Pachycormidae
Life habit
nektonicPBDB, for Pachycormiformes
Motility
actively mobilePBDB, for Pachycormiformes

Time the record covers

At most 7.4 million years on record.

Every occurrence read is dated to somewhere between 165.3 Mya and 157.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Jurassic — about 2 of 2 occurrencesMiddle JurassicLate Jurassic — about 0 of 2 occurrencesLate Jurassic166–165 Mya — about 0.0 occurrences165–165 Mya — about 0.1 occurrences165–165 Mya — about 0.1 occurrences165–164 Mya — about 0.1 occurrences164–164 Mya — about 0.1 occurrences164–164 Mya — about 0.1 occurrences164–164 Mya — about 0.1 occurrences164–163 Mya — about 0.1 occurrences163–163 Mya — about 0.1 occurrences163–163 Mya — about 0.1 occurrences163–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–162 Mya — about 0.1 occurrences162–161 Mya — about 0.1 occurrences161–161 Mya — about 0.0 occurrences161–161 Mya — about 0.0 occurrences161–160 Mya — about 0.0 occurrences160–160 Mya — about 0.0 occurrences160–160 Mya — about 0.0 occurrences160–160 Mya — about 0.0 occurrences160–159 Mya — about 0.0 occurrences159–159 Mya — about 0.0 occurrences159–159 Mya — about 0.0 occurrences159–159 Mya — about 0.0 occurrences159–158 Mya — about 0.0 occurrences158–158 Mya — about 0.0 occurrences158–158 Mya — about 0.0 occurrences165.8 Mya157.4 Mya

2 occurrences of Leedsichthys problematicus on record, most of them in the Middle Jurassic. 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

Oxford Clay — 52.55°N, 0.24°W

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The named rock units Leedsichthys problematicus 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.

Leedsichthys problematicus and its relatives

Middle Jurassic

Where Leedsichthys problematicus and its relatives were recorded in the Middle Jurassic.

Found in the same rock

14 taxa

The Paleobiology Database records 2 sites for Leedsichthys problematicus, 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Leedsichthys problematicus

Credit
Dmitry Bogdanov
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Leedsichthys problematicus 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 itLeedsichthys through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Woodward 1889)