Buchia

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
- BuchiidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- stationaryPBDB, for Buchiidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- marinePBDB, for Pectinida
Time the record covers
At least 96 million years on record.
The record covers at least 168.2 Mya to 72.2 Mya. No occurrence read is dated outside 184.2 Mya to 66 Mya.
1,057 occurrences of Buchia on record, most of them in the Early Cretaceous. 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
1,057 occurrences- Early Jurassicunder 1%
- Middle Jurassicunder 1%
- Late Jurassic39%
- Early Cretaceous60%
- Late Cretaceousunder 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
71 formations
- Kap Leslie Formation70
- Chigan Formation62
- Rurikfjellet Formation38
- Paksa Formation33
- Agardhfjellet Formation33
- Lower Shale-Siltstone Formation30
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The named rock units Buchia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 47 further formations hold fewer occurrences each and are not listed. 409 occurrences have no formation on record, which is common for older literature.
Buchia and its relatives
Early CretaceousWhere Buchia and its relatives were recorded in the Early Cretaceous.
Found in the same rock
339 taxa- Camptonectes67 sites
- Astarte61 sites
- Entolium orbiculare61 sites
- Ammonoidea56 sites
- Pleuromya51 sites
- Belemnitida47 sites
- Isognomon44 sites
- Taimyrothyris44 sites
- Pinna42 sites
- Grammatodon40 sites
- Isocyprina36 sites
- Hartwellia34 sites
- Pleuromya uniformis33 sites
- Serpula intestinalis33 sites
- Liostrea28 sites
- Oxytoma inequivalvis28 sites
- Protocardia striatula28 sites
- Plagiostoma25 sites
- Thracia depressa23 sites
- Orbiculoidea22 sites
- Pseudomelania21 sites
- Surites21 sites
- Grammatodon (Cosmetodon) keyserlingii20 sites
- Oxytoma20 sites
The Paleobiology Database records 641 sites for Buchia, 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
78 references- The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm181
- Lower Berriasian of Southern Primorye (Far East Russia) and the problem of Boreal--Tethyan correlation62
- Genesis and environmental significance of Upper Cretaceous shell concentrations from the Cauvery Basin, southern India54
- Das Festungsprofil auf Spitzbergen52
- Structural and stratigraphic significance of the Buchia zones in the Colyear Springs-Paskenta Area, California45
- Poliptikhity (Ammonity) i biostratigrafiya boreal'nogo Valanzhina43
- Characteristic Jurassic Mollusks from northern Alaska39
- Graywacke of Buchia Ridge and Correlative Lower Cretaceous Rocks in the Goodnews Bay and Bethel Quadrangles, Southwestern Alaska35
- Stratigraphy and composition of the Mesozoic deposits in central Vestspitsbergen35
- Mesozoic stratigraphy and Jurassic paleontology west of Harrison Lake, southwestern British Columbia31
- Uppermost Jurassic and Cretaceous rocks of Aklavik Range, Northeastern Richardson Mountains, Northwest Territories31
- Jurassic-Cretaceous boundary of the extreme Arctic (Peary Land, North Greenland)26
Each of the 1,057 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. 66 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 Buchia
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Buchia was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itBuchiidae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rouillier 1845