Foraminifera
Searched as Foraminifera indet.. The Paleobiology Database treats Foraminifera as the accepted name.
Foraminifera are single-celled organisms, members of a phylum or class of Rhizarian protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell called a test of diverse forms and materials. Tests of chitin are believed to be the most primitive type. Most foraminifera are marine, the majority of which live on or within the seafloor sediment, while a smaller number float in the water column at various depths, which belong to the suborder Globigerinina. Fewer are known from freshwater or brackish conditions, and some very few (nonaquatic) soil species have been identified through molecular analysis of small subunit ribosomal DNA.

Scott Fay · CC BY 2.5 · 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- Also called
- foramPBDB
- Sits inside
- RhizariaPBDB
- Diet
- omnivorePBDB
- Life habit
- semi-infaunalPBDB
- Motility
- stationaryPBDB
Time the record covers
At least 509 million years on record.
The record covers at least 509.7 Mya to 11.7 ka. No occurrence read is dated outside 516 Mya to 0 Mya.
2,852 occurrences of Foraminifera 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
2,852 occurrences- Cambrianunder 1%
- Devonianunder 1%
- Carboniferous3%
- Permian1%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassicunder 1%
- Early Jurassicunder 1%
- Late Jurassicunder 1%
- Early Cretaceous2%
- Late Cretaceous5%
- Paleocene4%
- Eocene12%
- Oligocene16%
- Miocene22%
- Pliocene9%
- Pleistocene21%
- 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
131 formations
- Graham Formation · Cisco Group41
- Byram Formation · Vicksburg Group27
- Dakhla Formation21
- Agua Doce Formation12
- Klasaman Formation9
- Changxing Formation9
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The named rock units Foraminifera has been recovered from, largest first. Drawn where the rock is now, not where it formed. 107 further formations hold fewer occurrences each and are not listed. 2,520 occurrences have no formation on record, which is common for older literature.
Foraminifera and its relatives
MioceneWhere Foraminifera and its relatives were recorded in the Miocene.
Found in the same rock
2,087 taxa- Nubeculinella45 sites
- Nanogyra (Nanogyra) nana41 sites
- Serpula38 sites
- Bryozoa37 sites
- Endothyra33 sites
- Actinostreon gregarea31 sites
- Crinoidea28 sites
- Calcisphaera25 sites
- Gryphaea24 sites
- Lenticulina22 sites
- Isognomon21 sites
- Earlandia20 sites
- Radulopecten fibrosus20 sites
- Asteroarchaediscus19 sites
- Pholadomya19 sites
- Echinoidea18 sites
- Fenestella18 sites
- Cleiothyridina16 sites
- Cristellaria (Marginulina)16 sites
- Eostaffella16 sites
- Gastropoda16 sites
- Haplophragmoides16 sites
- Deltoideum (Deltoideum) delta15 sites
- Nucula15 sites
The Paleobiology Database records at least 667 sites for Foraminifera, and this reads 240 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
221 references- Site U1406301
- Site U1403203
- Site U1456172
- Site U1334149
- Site U1335144
- Site U1457122
- Site U135298
- Site U133384
- Site U133779
- Site U146276
- Site U140462
- Site U135160
Each of the 2,852 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. 209 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 content2
Picture of Foraminifera
- Source
- Wikipedia/Commons
- Credit
- Scott Fay
- Licence
- CC BY 2.5
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
The description on this site
- 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 itRhizaria through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Eichwald 1830)