Buchia
Searched as Aucella terebratuloides regularis. The Paleobiology Database treats Buchia as the accepted name.

via iDigBio · 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 most 4.5 million years on record.
Every occurrence read is dated to somewhere between 137.05 Mya and 132.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 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
2 occurrences- Early Cretaceous100%
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
1 formation
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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.
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
1 referenceEach of the 2 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Buchia
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
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. Keyserling 1846