Circomphalus

Searched as Circomphalus plicatus rotundior. The Paleobiology Database treats Circomphalus as the accepted name.

Circomphalus is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, the venus clams.

Circomphalus

Hectonichus · 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
Sits inside
VenerinaePBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 1.1 million years on record.

Every occurrence read is dated to somewhere between 13.82 Mya and 12.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 2 of 2 occurrencesMiocene14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences14.32 Mya12.3 Mya

2 occurrences of Circomphalus 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

2 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.

Circomphalus and its relatives

Miocene

Where Circomphalus and its relatives were recorded in the Miocene.

Found in the same rock

434 taxa

The Paleobiology Database records 12 sites for Circomphalus, and this reads all 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 reference

Each 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 Circomphalus

Credit
Hectonichus
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Circomphalus 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 itVenerinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Mörch 1853)