Anomia
Searched as Anomia ephippium rugulostriata. The Paleobiology Database treats Anomia as the accepted name.
Anomia is a genus of saltwater clams, marine bivalve mollusks in the family Anomiidae. They are commonly known as jingle shells because when a handful of them are shaken they make a jingling sound, though some are also known as saddle oysters.

Jan Johan ter Poorten · CC BY-SA 3.0 · via Wikipedia/Commons. 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- Also called
- jinglePBDB
- Sits inside
- AnomiidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- stationary, attached, epibiontPBDB
- Vision
- blindPBDB, for Bivalvia
- Environment
- marinePBDB, for Pectinida
Time the record covers
At most 4.4 million years on record.
The one occurrence read is dated to somewhere between 15.98 Mya and 11.63 Mya, which is a dating window rather than a span.
1 occurrence of Anomia on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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- Miocene100%
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
Loading coastlines…
The named rock units Anomia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Anomia and its relatives
MioceneWhere Anomia and its relatives were recorded in the Miocene.
Found in the same rock
1,322 taxa- Exogyra (Exogyra) costata114 sites
- Crassatella vadosa100 sites
- Syncyclonema91 sites
- Veniella conradi90 sites
- Crenella serica85 sites
- Cyprimeria83 sites
- Nuculana83 sites
- Serpula81 sites
- Cymbophora76 sites
- Camptonectes bubonis73 sites
- Cubitostrea tecticosta72 sites
- Idonearca capax72 sites
- Pycnodonte vesicularis72 sites
- Granocardium71 sites
- Bryozoa66 sites
- Linearis66 sites
- Turritella66 sites
- Turritella vertebroides66 sites
- Pseudolimea reticulata64 sites
- Vertebrata62 sites
- Cliona61 sites
- Liopistha protexta61 sites
- Gryphaeostrea vomer59 sites
- Hamulus onyx57 sites
The Paleobiology Database records 1,221 sites for Anomia, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Anomia
- Source
- Wikipedia/Commons
- Credit
- Jan Johan ter Poorten
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Anomia was found in Smithsonian Open Access and Sketchfab.
MorphoSource was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAnomiidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1758