Hulettia

Hulettia is an extinct genus of ray-finned fish known from the Jurassic of the western United States. This fish genus contains at least one species, H. americana.

Hulettia

Michael Brett-Surman · CC0 · 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
HalecostomiPBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 10 million years on record.

The record covers at least 165.3 Mya to 154.8 Mya. No occurrence read is dated outside 168.2 Mya to 143.1 Mya.

Middle Jurassic — about 1 of 3 occurrencesMiddle JurassicLate Jurassic — about 2 of 3 occurrencesLate JurassicEarly Cretaceous — about 0 of 3 occurrences169–168 Mya — about 0.1 occurrences168–167 Mya — about 0.3 occurrences167–166 Mya — about 0.3 occurrences166–165 Mya — about 0.3 occurrences156–155 Mya — about 0.0 occurrences155–154 Mya — about 0.1 occurrences154–153 Mya — about 0.1 occurrences153–152 Mya — about 0.1 occurrences152–151 Mya — about 0.1 occurrences151–150 Mya — about 0.1 occurrences150–150 Mya — about 0.1 occurrences150–149 Mya — about 0.1 occurrences149–148 Mya — about 0.1 occurrences148–147 Mya — about 0.1 occurrences147–146 Mya — about 0.1 occurrences146–145 Mya — about 0.1 occurrences145–144 Mya — about 0.1 occurrences144–143 Mya — about 0.1 occurrences143–143 Mya — about 0.1 occurrences165.3 Mya154.8 Mya168.7 Mya142.6 Mya

3 occurrences of Hulettia on record, most of them in the Late 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

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

Morrison — 39.24°N, 109.00°WMorrison — 39.15°N, 108.77°WSundance — 43.42°N, 103.47°W

Loading coastlines…

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

Hulettia and its relatives

Late Jurassic

Where Hulettia and its relatives were recorded in the Late Jurassic.

Found in the same rock

8 taxa

The Paleobiology Database records 3 sites for Hulettia, 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

3 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 Hulettia

Credit
Michael Brett-Surman
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itHalecostomi through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Schaeffer and Patterson 1984