Eutrichiurides

Eutrichiurides is an extinct genus of cutlassfish known from the early Paleocene to the early Oligocene.

Eutrichiurides

Uncredited · via Wikipedia/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
TrichiurinaePBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 56 million years on record.

The record covers at least 59.24 Mya to 2.58 Mya. No occurrence read is dated outside 61.66 Mya to 774 ka.

Paleocene — about 2 of 17 occurrencesPaleoceneEocene — about 14 of 17 occurrencesEoceneOligocene — about 0 of 17 occurrencesMiocene — about 0 of 17 occurrencesPliocene — about 0 of 17 occurrencesPleistocene — about 1 of 17 occurrences63–61 Mya — about 0.4 occurrences61–59 Mya — about 0.8 occurrences59–57 Mya — about 0.6 occurrences57–54 Mya — about 2 occurrences54–52 Mya — about 3 occurrences52–50 Mya — about 3 occurrences50–48 Mya — about 3 occurrences48–46 Mya — about 0.8 occurrences46–44 Mya — about 0.7 occurrences44–42 Mya — about 0.7 occurrences42–40 Mya — about 0.3 occurrences40–38 Mya — about 0.1 occurrences38–36 Mya — about 0.6 occurrences36–34 Mya — about 0.5 occurrences4.2–2.1 Mya — about 0.3 occurrences2.1–0 Mya — about 0.7 occurrences59.24 Mya2.58 Mya63 Mya0 Mya

17 occurrences of Eutrichiurides on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

17 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

8 formations

London Clay — 51.37°N, 1.08°ELondon Clay — 51.40°N, 0.83°ELondon Clay — 50.78°N, 0.65°WKithar — 30.60°N, 70.38°EBuchak — 49.53°N, 39.07°EBissex Hill — 13.22°N, 59.55°WCambay Shale — 21.40°N, 73.08°EArgiles d'lignite du Soissonnais — 49.33°N, 2.66°EKhuiala — 27.17°N, 70.50°EHeers — 50.10°N, 5.00°E

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The named rock units Eutrichiurides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Eutrichiurides and its relatives

Eocene

Where Eutrichiurides and its relatives were recorded in the Eocene.

Found in the same rock

527 taxa

The Paleobiology Database records 17 sites for Eutrichiurides, 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

12 references

Each of the 17 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 content2

Picture of Eutrichiurides

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

Source
Sketchfab
Credit
Palaeoart
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itTrichiurinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Casier 1944