Epithemia
Searched as Epithemia zebra procellus. The Paleobiology Database treats Epithemia as the accepted name.
Epithemia is a genus of diatoms belonging to the family Rhopalodiaceae. Species in this genus have a cosmopolitan distribution and are found in freshwater and marine ecosystems. Recent studies have proposed that the genus Rhopalodia should be merged into Epithemia based on phylogenetic evidence, although this taxonomic change has been disputed or ignored.

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
- RhopalodiaceaePBDB
- Diet
- "photoautotroph"PBDB, for Bacillariophyceae
- Environment
- marine,brackish,freshwaterPBDB, for Bacillariophyceae
Time the record covers
At most 2.6 million years on record.
The one occurrence read is dated to somewhere between 2.58 Mya and 11.7 ka, which is a dating window rather than a span.
1 occurrence of Epithemia 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
1 occurrences- Pleistocene100%
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.
Epithemia and its relatives
PleistoceneWhere Epithemia and its relatives were recorded in the Pleistocene.
Found in the same rock
98 taxa- Cyclotella10 sites
- Nitzschia10 sites
- Chaetoceros7 sites
- Thalassionema7 sites
- Cymbella6 sites
- Actinocyclus5 sites
- Actinocyclus ellipticus5 sites
- Rhizosolenia5 sites
- Thalassiosira5 sites
- Actinocyclus octonarius4 sites
- Fragilaria4 sites
- Rhopalodia4 sites
- Actinoptychus senarius3 sites
- Cocconeis3 sites
- Diploneis3 sites
- Ethmodiscus3 sites
- Navicula3 sites
- Pinnularia3 sites
- Stephanodiscus3 sites
- Synedra3 sites
- Achnanthes2 sites
- Azpeitia2 sites
- Gomphonema2 sites
- Hyalodiscus2 sites
The Paleobiology Database records 14 sites for Epithemia, 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 1 occurrence 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 Epithemia
- 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 Epithemia 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, “Epithemia”
- 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 itRhopalodiaceae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kützing 1844