Anisodonta truncilla

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
- AnisodontaPBDB
- Diet
- suspension feederPBDB, for Sportellidae
- Life habit
- infaunalPBDB, for Sportellidae
- Motility
- facultatively mobilePBDB, for Sportellidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 7.1 million years on record.
Every occurrence read is dated to somewhere between 48.07 Mya and 41.03 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Anisodonta truncilla on record, most of them in the Eocene. 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- Eocene100%
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 Anisodonta truncilla has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Anisodonta truncilla and its relatives
EoceneWhere Anisodonta truncilla and its relatives were recorded in the Eocene.
Found in the same rock
15 taxa- Eurhomalea newtoni2 sites
- Modiolus thomsoni2 sites
- Saxolucina sharmani2 sites
- Sudonassarius antarctohimaleos2 sites
- Antarctodarwinella ellioti1 site
- Austroficopsis wimani1 site
- Eucrassatella wilckensi1 site
- Eurhomalea antarctica1 site
- Gaimardia flemingi1 site
- Lahillia wilckensi1 site
- Mactra irizari1 site
- Nymphactra jonasseni1 site
- Ostrea antarctica1 site
- Pareuthria mccormicki1 site
- Polinices (Polinices) subtenuis1 site
The Paleobiology Database records 2 sites for Anisodonta truncilla, and this reads all of them. The number is how many of those sites it was catalogued from too.
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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Anisodonta truncilla
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Anisodonta truncilla 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 itAnisodonta through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Stilwell and Zinsmeister 1992