Synedra

Uncredited · via Wikidata/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
- FragilariaceaePBDB
- Diet
- "photoautotroph"PBDB, for Bacillariophyceae
- Environment
- marine,brackish,freshwaterPBDB, for Bacillariophyceae
Time the record covers
At least 15 million years on record.
The record covers at least 15.98 Mya to 290 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.
123 occurrences of Synedra on record, most of them in the Miocene. 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
123 occurrences- Miocene79%
- Pliocene9%
- Pleistocene12%
- 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.
Found in
2 formations
- Gadeb Formation · Gadeb Plain Group2
- Pungo River Formation1
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The named rock units Synedra has been recovered from, largest first. Drawn where the rock is now, not where it formed. 120 occurrences have no formation on record, which is common for older literature.
Synedra and its relatives
MioceneWhere Synedra and its relatives were recorded in the Miocene.
Found in the same rock
291 taxa- Thalassionema104 sites
- Thalassiosira88 sites
- Nitzschia85 sites
- Azpeitia81 sites
- Thalassiosiraceae74 sites
- Triceratium57 sites
- Actinocyclus ellipticus51 sites
- Actinocyclus46 sites
- Hemidiscus45 sites
- Bogorovia44 sites
- Rossiella42 sites
- Ethmodiscus28 sites
- Rhizosolenia23 sites
- Coscinodiscus22 sites
- Asteromphalus20 sites
- Lioloma20 sites
- Actinoptychus senarius18 sites
- Roperia18 sites
- Asterolampra17 sites
- Dictyocha16 sites
- Cestodiscus15 sites
- Coscinodiscus marginatus15 sites
- Crucidenticula15 sites
- Denticulopsis15 sites
The Paleobiology Database records 119 sites for Synedra, 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
11 references- Site U133880
- Site U133721
- Site U14485
- A Catalogue of Indian Fossil Plants5
- Site U14454
- Biogeography of the Pliocene and Pleistocene vertebrate faunas of Northeastern California and their temporal significance to the development of the Modoc Plateau and Klamath Mountain Region2
- Hominid occupation of the east central Highlands of Ethiopia in the Plio-Pleistocene2
- Site U15011
- The Afro–Asian labeonine genus Garra Hamilton, 1822 (Teleostei, Cyprinidae) in the Pliocene of Central Armenia: Palaeoecological and palaeobiogeographical implications1
- Site U13411
- Biostratigraphy and paleoecology of a diatomaceous clay unit in the Miocene Pungo River Formation of Beaufort County, North Carolina1
Each of the 123 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 Synedra
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Synedra 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itFragilariaceae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ehrenberg 1830