Ulothrix
Ulothrix is a genus of green algae in the family Ulotrichaceae. It is a common in fresh to marine habitats, particularly colder and temperate waters. It has a cosmopolitan distribution.

T.Voekler · CC BY-SA 3.0 · 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
- ChlorophyceaePBDB
- Diet
- "photoautotroph"PBDB, for Chlorophyta
- Life habit
- epifaunalPBDB, for Chlorophyta
- Motility
- stationary, attachedPBDB, for Chlorophyta
- Environment
- lagoonal,coastal,inner shelf,marine,brackish,freshwaterPBDB, for Chlorophyta
Time the record covers
At least 2.4 million years on record.
The record covers at least 61.66 Mya to 59.24 Mya. No occurrence read is dated outside 66 Mya to 23.04 Mya.
4 occurrences of Ulothrix on record, most of them in the Paleocene. 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
4 occurrencesThese 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
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The named rock units Ulothrix 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.
Ulothrix and its relatives
PaleoceneWhere Ulothrix and its relatives were recorded in the Paleocene.
Found in the same rock
284 taxa- Plantae3 sites
- Azolla2 sites
- Azolla intertrappea2 sites
- Fungi2 sites
- Salvinia intertrappea2 sites
- Tricolpites2 sites
- Triorites2 sites
- Acanthaceoxylon mohgaonse1 site
- Acanthus1 site
- Aerorhizos harrisii1 site
- Aesculoxylon deccanensis1 site
- Ailanthoxylon indicum1 site
- Amesoneuron borassoides1 site
- Andreaeaites ramanujamii1 site
- Apocynaceoxylon mohgaoense1 site
- Araucarioxylon mohgaoensis1 site
- Arbusculites dicotylophylli1 site
- Areca1 site
- Arecaceae1 site
- Ascochytites intertrappea1 site
- Azolla deccanensis1 site
- Azolla indica1 site
- Bambusoideae1 site
- Bauhinioxylon intertrappea1 site
The Paleobiology Database records 4 sites for Ulothrix, 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
1 referenceEach of the 4 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 Ulothrix
- Source
- Wikipedia/Commons
- Credit
- T.Voekler
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Ulothrix was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Ulothrix”
- 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 itChlorophyceae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kützing 1833