Fusulinidae
The Fusulinidae is a family of fusulinoidean foraminifera from the upper Carboniferous to the Upper Permian (Guadalupian), tests of which are fusiform to subcylindrical with walls of two to four layers. Are planispirally coiled throughout or with early whorls at a distinct angle to the later plane of coiling. Septa, flat to well fluted; tunnel, single; chomata variable in development.

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
- FusulinoideaPBDB
- Diet
- omnivorePBDB, for Foraminifera
- Life habit
- semi-infaunalPBDB, for Foraminifera
- Motility
- stationaryPBDB, for Foraminifera
- Environment
- marinePBDB, for Fusulinoidea
Time the record covers
At least 59 million years on record.
The record covers at least 323.4 Mya to 264.28 Mya. No occurrence read is dated outside 358.86 Mya to 251.902 Mya.
1,105 occurrences of Fusulinidae on record, most of them in the Carboniferous. 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
1,105 occurrences- Carboniferous54%
- Permian46%
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
92 formations
- McCloud Formation162
- Foraker Limestone Formation · Council Grove Group80
- Wordiekammen Formation80
- Foldedal Formation70
- Meledis Formation32
- Janesville Shale Formation · Admire Group23
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The named rock units Fusulinidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 68 further formations hold fewer occurrences each and are not listed. 283 occurrences have no formation on record, which is common for older literature.
Fusulinidae and its relatives
CarboniferousWhere Fusulinidae and its relatives were recorded in the Carboniferous.
Found in the same rock
183 taxa- Crinoidea92 sites
- Neochonetes granulifer73 sites
- Echinoidea67 sites
- Trepostomata56 sites
- Hustedia mormoni44 sites
- Crurithyris expansa40 sites
- Neospirifer dunbari37 sites
- Reticulatia huecoensis37 sites
- Linoproductus36 sites
- Bryozoa34 sites
- Derbyia33 sites
- Lissochonetes geronticus33 sites
- Hystriculina wabashensis31 sites
- Composita subtilita28 sites
- Millerella28 sites
- Crurithyris27 sites
- Fenestrata25 sites
- Neospirifer23 sites
- Triticites23 sites
- Fusulina21 sites
- Derbyia crassa20 sites
- Composita19 sites
- Marginifera18 sites
- Lophophyllidium17 sites
The Paleobiology Database records 755 sites for Fusulinidae, 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
84 references- Stratigraphy and Paleontology of the Uppermost Pennsylvanian and Lowermost Permian Rocks in Kansas226
- Permian biostratigraphy and fusulinid faunas of the Shasta Lake area, northern California161
- Pennsylvanian-Permian Fusulinaceans of the Big Hatchet Mountains, New Mexico85
- Fusulinid Succession from the Middle-Upper Carboniferous Boundary Beds on Spitsbergen, Arctic Norway82
- Fusulinid zonation of the Upper Carboniferous Kap Jungersen and Foldedal Formations, southern Amdrup Land, eastern North Greenland79
- Leven and Shcherbovich, 197861
- Fusulinid assemblages and facies of the Bombaso Fm. and basal Meledis Fm. (Moscovian-Kasimovian) in the central Carnic alps (Austria/Italy)52
- Fusulinoidean Faunas from the Upper Carboniferous and Lower Permian Platform Limestone in the Hadim Area, Central Taurides, Turkey40
- Biostratigraphic subdivision and correlation of uppermost Carboniferous/Lower Permian sediments in the southern Alps: fusulinoidean and conodont faunas from the Carnic Alps (Austria/Italy), Karavanke Mountains (Slovenia), and southern Urals (Russia)27
- Systematics and biostratigraphic notes of the upper Moscovian-upper Gzhelian fusulinid foraminifers from the Anatolian Platform in the Southern Turkey23
- Middle Pennsylvanian Brachiopods From the Mud Springs Mountains and Derry Hills, New Mexico20
- Pennsylvanian and Early Permian Fusulinids from Fort St. James Area, British Columbia, Canada19
Each of the 1,105 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. 72 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 content1

Picture of Fusulinidae
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Fusulinidae”
- 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 itFusulinoidea through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Moeller 1878