Spirifer
Spirifer is a genus of marine brachiopods belonging to the order Spiriferida and family Spiriferidae. Species belonging to the genus lived in the Carboniferous.

Dwergenpaartje · 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
- SpiriferinaePBDB
- Diet
- suspension feederPBDB, for Spiriferida
- Life habit
- epifaunalPBDB, for Spiriferida
- Motility
- stationaryPBDB, for Spiriferida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 218 million years on record.
The record covers at least 445.5 Mya to 227.3 Mya. No occurrence read is dated outside 449.6 Mya to 215.38 Mya.
1,059 occurrences of Spirifer 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
1,059 occurrences- Ordovicianunder 1%
- Silurian7%
- Devonian24%
- Carboniferous62%
- Permian7%
- Middle Triassicunder 1%
- Late Triassicunder 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
239 formations
- Banff Formation57
- Geneseo Formation · Genesee Group36
- Salem Limestone Formation35
- Three Forks Shale Formation30
- Onondaga Formation23
- Rochester Formation · Clinton Group22
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The named rock units Spirifer has been recovered from, largest first. Drawn where the rock is now, not where it formed. 215 further formations hold fewer occurrences each and are not listed. 141 occurrences have no formation on record, which is common for older literature.
Spirifer and its relatives
CarboniferousWhere Spirifer and its relatives were recorded in the Carboniferous.
Found in the same rock
1,418 taxa- Camarotoechia77 sites
- Fenestella59 sites
- Chonetes57 sites
- Schuchertella46 sites
- Cleiothyridina42 sites
- Syringothyris41 sites
- Dielasma38 sites
- Composita37 sites
- Crinoidea37 sites
- Platycrinites36 sites
- Platyceras32 sites
- Fistulipora30 sites
- Cyrtospirifer29 sites
- Eumetria29 sites
- Cystodictya28 sites
- Girtyella28 sites
- Punctospirifer27 sites
- Composita trinuclea26 sites
- Productella26 sites
- Rhipidomella26 sites
- Syringopora26 sites
- Polypora25 sites
- Torynifer25 sites
- Brachythyris24 sites
The Paleobiology Database records 804 sites for Spirifer, 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
238 references- Lower Carboniferous brachiopods from the Banff Formation of Western Alberta46
- The Clinton of Western and Central New York42
- New Mississippian Formations and Faunal Zones in Chesterfield Range, Portneuf Quadrangle Southeast Idaho37
- Geology of the Three Forks Quadrangle, Montana37
- Work with Thayer collections, Yale Peabody Accession 7112, published, in part, "New perspectives on transitions between ecological-evolutionary subunits in the "type interval" for coordinated stasis", James J Zambito IV, Carlton E Brett, Gordon C Baird, Sarah E Kolbe, Arnold I Miller; Paleobiology35
- Geology and mineral deposits of southeastern Alaska34
- Facies Faunas of the Salem Limestone (Mississippian) in Southern Indiana and Central Kentucky29
- Early Carboniferous brachiopod zones of eastern Australia25
- Stratigraphy of the Onondaga Limestone in Central New York22
- The Stratigraphy of the Kinderhook Series of Iowa20
- The stratigraphy of the Carboniferous rocks of the Weaver Hills District, North Staffordshire18
- Fauna of Glen Dean Limestone (Chester) in Indiana and Northern Kentucky16
Each of the 1,059 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. 226 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 Spirifer
- Source
- Wikipedia/Commons
- Credit
- Dwergenpaartje
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Spirifer murchisoni · iu:iupc:2400
3D model
- Source
- Sketchfab
- Credit
- UIPaleoRepository
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
The description on this site
- Source
- Wikipedia, “Spirifer”
- 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 itSpiriferinae through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1818)