Bairdiidae
Bairdiidae is a family of crustaceans belonging to the order Podocopida.
via iDigBio · CC BY-NC-SA · 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
- BairdioideaPBDB
- Diet
- detritivore, grazerPBDB, for Podocopida
- Life habit
- epifaunalPBDB, for Podocopida
- Motility
- actively mobilePBDB, for Ostracoda
- Vision
- limitedPBDB, for Ostracoda
- Environment
- marinePBDB, for Ostracoda
Time the record covers
At least 457 million years on record.
The record covers at least 457.3 Mya to 11.7 ka. No occurrence read is dated outside 471.3 Mya to 0 Mya.
5,606 occurrences of Bairdiidae on record, most of them in the Permian. 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
5,606 occurrences- Ordovician2%
- Silurianunder 1%
- Devonian4%
- Carboniferous7%
- Permian53%
- Early Triassic11%
- Middle Triassic5%
- Late Triassic4%
- Early Jurassic7%
- Middle Jurassicunder 1%
- Late Jurassicunder 1%
- Early Cretaceousunder 1%
- Late Cretaceousunder 1%
- Paleocene1%
- Eocene1%
- Oligocene1%
- Miocene2%
- Plioceneunder 1%
- Pleistoceneunder 1%
- 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
294 formations
- Changxing Formation926
- Qixia Formation269
- Maokou Formation226
- Kokarkuyu Formation218
- Elikah Formation211
- Marelb Formation141
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The named rock units Bairdiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 270 further formations hold fewer occurrences each and are not listed. 679 occurrences have no formation on record, which is common for older literature.
Bairdiidae and its relatives
PermianWhere Bairdiidae and its relatives were recorded in the Permian.
Found in the same rock
1,852 taxa- Bairdia129 sites
- Krausella60 sites
- Crinoidea57 sites
- Bairdiacypris43 sites
- Bairdiocypris41 sites
- Paraparchites38 sites
- Glomospira36 sites
- Rastidiscus sp.34 sites
- Healdia33 sites
- Echinoidea32 sites
- Eomarginifera longispinus32 sites
- Eurychilina32 sites
- Aparchites28 sites
- Tetradella28 sites
- Tolypammina28 sites
- Plectogyra27 sites
- Leperditella26 sites
- Amphissites25 sites
- Kinkelinella25 sites
- Acratia24 sites
- Monoceratina24 sites
- Schmidtella23 sites
- Crurithyris urei22 sites
- Dicranella22 sites
The Paleobiology Database records at least 810 sites for Bairdiidae, 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
288 references- The Changhsingian ostracodes from Meishan, Changxing, Zhejiang435
- Biodiversity across the Guadalupian-Lopingian Boundary: first results on the ostracod (Crustacea) fauna, Chaotian section (Sichuan Province, South China)226
- Ostracoden aus dem Lias der Kalkalpen Bayerns und Nordtirols221
- Heterochronic growth of ostracods (Crustacea) from microbial deposits in the aftermath of the end-Permian extinction217
- Ostracods from the end-Permian mass extinction in the Aras Valley section (north-west Iran)202
- Precocious sexual dimorphism and the Lilliput effect in Neo-Tethyan Ostracoda (Crustacea) through the Permian-Triassic boundary193
- Ostracods (Crustacea) through the Permian-Triassic boundary in South China: the Meishan stratotype (Zhejiang Province)184
- Ostracodes from the Upper Pennsylvanian and Lower Permian strata of Kansas: II. The genus Bairdia159
- Ostracods (Crustacea) of the Early-Middle Permian (Cisarulian-Guadalupian) from central Thailand (Indochina Block): Part II, Orders Podocopida, Platycopida and Myodocopida152
- Early and middle Anisian (Triassic) deep-water ostracods (Crustacea) from North Dobrogea (Romania)146
- Ostracods (Crustacea) associated with microbialites across the Permian-Triassic boundary in Dajiang (Guizhou Province, south China)137
- Taxonomic names, in Ostracods (Crustacea) through the Permian-Triassic boundary in South China: the Meishan stratotype (Zhejiang Province)129
Each of the 5,606 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. 276 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 Bairdiidae
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY-NC-SA
- Commercial use
- the licence does not allow it
No 3D scan of Bairdiidae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Bairdiidae”
- 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 itBairdioidea through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Sars 1888