Bigenerina

via iDigBio · CC0 · via iDigBio. 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
- TextulariidaePBDB
- Diet
- omnivorePBDB, for Foraminifera
- Life habit
- semi-infaunalPBDB, for Foraminifera
- Motility
- stationaryPBDB, for Foraminifera
Time the record covers
At least 306 million years on record.
The record covers at least 307 Mya to 11.7 ka. No occurrence read is dated outside 323.4 Mya to 0 Mya.
224 occurrences of Bigenerina 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
224 occurrences- Carboniferous11%
- Permianunder 1%
- Middle Triassicunder 1%
- Late Triassic2%
- Late Jurassicunder 1%
- Late Cretaceousunder 1%
- Eoceneunder 1%
- Oligocene4%
- Miocene34%
- Pliocene12%
- Pleistocene34%
- 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
14 formations
- Oread Limestone Formation · Shawnee Group21
- Mt. Facito Formation1
- Dachstein Formation1
- Misfah Formation1
- La Pasada Formation1
- Kuta Formation1
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The named rock units Bigenerina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 190 occurrences have no formation on record, which is common for older literature.
Bigenerina and its relatives
MioceneWhere Bigenerina and its relatives were recorded in the Miocene.
Found in the same rock
1,189 taxa- Bulimina67 sites
- Brizalina65 sites
- Dentalina54 sites
- Uvigerina54 sites
- Nonion47 sites
- Planulina45 sites
- Asterigerina42 sites
- Elphidium41 sites
- Cibicidoides40 sites
- Spiroplectammina carinata38 sites
- Textularia38 sites
- Cibicides pseudoungerianus36 sites
- Nodosaria35 sites
- Cibicides lobatulus34 sites
- Martinottiella communis33 sites
- Cibicides dutemplei31 sites
- Sphaeroidina bulloides31 sites
- Bulimina marginata30 sites
- Globocassidulina29 sites
- Lenticulina (Lenticulina)29 sites
- Lentigodentalium29 sites
- Sigmoilopsis29 sites
- Siphonodosaria29 sites
- Turritella29 sites
The Paleobiology Database records 219 sites for Bigenerina, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
43 references- Die Fauna des marinen Miozäns von Kevelaer (Niederrhein). Band 1 Foraminiferen, Anthozoen.37
- Site U138622
- Site U138721
- Site U139621
- The Biota of the Pennsylvanian (Virgilian) Leavenworth Limestone Midcontinent Region Part 4: Distribution of agglutinated and silicified foraminifera21
- Site U133815
- Site U13919
- Site U14828
- Site U13898
- Site U14847
- Site U13337
- Site U14855
Each of the 224 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. 31 further references are not listed. 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 content3

Picture of Bigenerina
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Bigenerina sp. · l-cb
3D model
- Source
- Sketchfab
- Credit
- BelangerForamLab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
Smithsonian Open Access was 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 itTextulariidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. d'Orbigny 1826