Aulacoseira
Aulacoseira is a genus of diatoms belonging to the family Aulacoseiraceae.

Kristian Peters http://www.korseby.net/outer/flora/algae/index.html · 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
- AulacoseiraceaePBDB
- Diet
- "photoautotroph"PBDB, for Bacillariophyceae
- Environment
- marine,brackish,freshwaterPBDB, for Bacillariophyceae
Time the record covers
At least 47 million years on record.
The record covers at least 48.07 Mya to 290 ka. No occurrence read is dated outside 56 Mya to 0 Mya.
103 occurrences of Aulacoseira on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
103 occurrences- Eocene2%
- Miocene5%
- Pliocene11%
- Pleistocene82%
- Holoceneunder 1%
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.
Aulacoseira and its relatives
PleistoceneWhere Aulacoseira and its relatives were recorded in the Pleistocene.
Found in the same rock
101 taxa- Thalassionema85 sites
- Chaetoceros82 sites
- Thalassiosira73 sites
- Paralia sulcata71 sites
- Neodenticula49 sites
- Shionodiscus45 sites
- Actinocyclus44 sites
- Actinoptychus senarius38 sites
- Coscinodiscus radiatus32 sites
- Diploneis32 sites
- Cyclotella29 sites
- Rhizosolenia29 sites
- Fragilariopsis26 sites
- Coscinodiscus19 sites
- Coscinodiscus marginatus17 sites
- Stephanopyxis15 sites
- Bacterosira14 sites
- Cocconeis14 sites
- Nitzschia14 sites
- Stephanopyxis turris14 sites
- Thalassiothrix longissima11 sites
- Paralia10 sites
- Azpeitia9 sites
- Delphineis9 sites
The Paleobiology Database records 102 sites for Aulacoseira, 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
20 references- Site U142722
- Sites U1428 and U142919
- Site U142615
- Site U14227
- Site U14245
- Site U14454
- Site U13394
- Site U13434
- Site U13444
- Site U13453
- Aulacoseira giraffensis (Bacillariophyceae), a new diatom species forming massive populations in an Eocene lake2
- Site U14232
Each of the 103 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. 8 further references are not listed. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Aulacoseira
- Source
- Wikipedia/Commons
- Credit
- Kristian Peters http://www.korseby.net/outer/flora/algae/index.html
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Aulacoseira 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.
The description on this site
- Source
- Wikipedia, “Aulacoseira”
- 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 itAulacoseiraceae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Thwaites 1848