Yakovlevia

Yale Peabody Museum · CC0 · via GBIF. 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
- YakovleviiniPBDB
- Diet
- suspension feederPBDB, for Productidina
- Life habit
- low-level epifaunalPBDB, for Productidina
- Motility
- stationaryPBDB, for Productidina
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 39 million years on record.
The record covers at least 298.9 Mya to 259.857 Mya. No occurrence read is dated outside 323.4 Mya to 251.902 Mya.
308 occurrences of Yakovlevia on record, most of them in the Permian. 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
308 occurrences- Carboniferous1%
- Permian99%
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
55 formations
- Gerster Formation · Park City Group42
- Jungle Creek Formation26
- Wegener Halvo Formation21
- Takhandit Formation20
- Road Canyon Formation17
- Word Formation16
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The named rock units Yakovlevia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 31 further formations hold fewer occurrences each and are not listed. 44 occurrences have no formation on record, which is common for older literature.
Yakovlevia and its relatives
PermianWhere Yakovlevia and its relatives were recorded in the Permian.
Found in the same rock
1,281 taxa- Bryozoa27 sites
- Xestotrema pulchrum26 sites
- Composita mira25 sites
- Dielasma25 sites
- Derbyia23 sites
- Spiriferella22 sites
- Stenoscisma21 sites
- Ctenalosia fixata18 sites
- Dyoros (Dyoros) extensus18 sites
- Hustedia17 sites
- Meekella skenoides17 sites
- Aviculopecten16 sites
- Bathymyonia nevadensis16 sites
- Cancrinella16 sites
- Composita enormis16 sites
- Crinoidea16 sites
- Liosotella wordensis16 sites
- Spiriferella loveni16 sites
- Heteralosia hystricula15 sites
- Streblopteria montpelierensis15 sites
- Waagenoconcha15 sites
- Cleiothyridina14 sites
- Cyclacantharia kingorum14 sites
- Pseudodielasma14 sites
The Paleobiology Database records 298 sites for Yakovlevia, 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
54 references- The biostratigraphy and paleoecology of the Gerster Limestone (Upper Permian) in Nevada and Utah42
- Permian Brachiopods of West Texas, VI34
- Lower Permian brachiopods and molluscs from the upper Jungle Creek Formation, northern Yukon Territory, Canada28
- Kalashnikov, 199321
- Stratigraphy and paleontology of the revised type section for the Takhandit Limestone (Permian) in east-central Alaska21
- Permian brachiopod faunas of central east Greenland21
- Pavlova et al., 199111
- Carboniferous and Permian Brachiopoda11
- Permian brachiopods from central Oregon11
- Permo-Pennsylvanian brachythyrid and horridonid brachiopods from the Yukon Territory, Canada10
- Geology and mineral deposits of southeastern Alaska10
- Permian strata and brachiopods from Xiujimqinqi region of Neimongol (Inner Mongolia) autonomous region, China6
Each of the 308 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. 42 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 Yakovlevia
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Yakovlevia 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itYakovleviini through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Fredericks 1925