Anomia

Searched as Anomia ephippium rugulosostriata. 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.

Anomia

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 least 2.1 million years on record.

The record covers at least 15.98 Mya to 13.82 Mya. No occurrence read is dated outside 20.45 Mya to 11.63 Mya.

Miocene — about 7 of 7 occurrencesMiocene21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–18 Mya — about 0.1 occurrences18–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–17 Mya — about 0.1 occurrences17–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences16–16 Mya — about 0.4 occurrences16–15 Mya — about 0.5 occurrences15–15 Mya — about 0.5 occurrences15–15 Mya — about 0.5 occurrences15–14 Mya — about 0.5 occurrences14–14 Mya — about 0.5 occurrences14–14 Mya — about 0.5 occurrences14–13 Mya — about 0.6 occurrences13–13 Mya — about 0.6 occurrences13–13 Mya — about 0.6 occurrences13–12 Mya — about 0.3 occurrences12–12 Mya — about 0.3 occurrences12–12 Mya — about 0.3 occurrences12–11 Mya — about 0.1 occurrences15.98 Mya13.82 Mya20.9 Mya11.1 Mya

7 occurrences 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

7 occurrences

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

Lychow — 50.69°N, 22.03°E

Loading coastlines…

The named rock units Anomia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Anomia and its relatives

Miocene

Where Anomia and its relatives were recorded in the Miocene.

Found in the same rock

1,322 taxa

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

4 references

Each of the 7 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. 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 Anomia

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 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.

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