Entolium
Searched as Entolium kolymaense kolymaense. The Paleobiology Database treats Entolium as the accepted name.

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
- EntoliidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- limitedPBDB, for Entoliidae
- Environment
- marinePBDB, for Pectinida
Time the record covers
At most 26 million years on record.
The one occurrence read is dated to somewhere between 227.3 Mya and 201.4 Mya, which is a dating window rather than a span.
1 occurrence of Entolium on record, most of them in the Late Triassic. 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 occurrences- Late Triassic100%
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.
Entolium and its relatives
Late TriassicWhere Entolium and its relatives were recorded in the Late Triassic.
Found in the same rock
1,251 taxa- Camptonectes91 sites
- Isognomon82 sites
- Astarte78 sites
- Ammonoidea77 sites
- Pleuromya65 sites
- Pleuromya uniformis65 sites
- Belemnitida62 sites
- Plagiostoma62 sites
- Buchia mosquensis60 sites
- Pinna60 sites
- Taimyrothyris58 sites
- Grammatodon52 sites
- Isocyprina48 sites
- Protocardia striatula47 sites
- Serpula intestinalis45 sites
- Modiolus44 sites
- Liostrea41 sites
- Hartwellia39 sites
- Oxytoma inequivalvis36 sites
- Pseudomelania32 sites
- Pholadomya31 sites
- Grammatodon (Cosmetodon) keyserlingii29 sites
- Serpula29 sites
- Thracia depressa29 sites
The Paleobiology Database records 1,175 sites for Entolium, 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 1 occurrence 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 content2

Picture of Entolium
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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 itEntoliidae through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Meek 1865)