Adamussium colbecki

The Antarctic scallop is a species of bivalve mollusc in the large family of scallops, the Pectinidae. It was thought to be the only species in the genus Adamussium until an extinct Pliocene species was described in 2016. Its exact relationship to other members of the Pectinidae is unclear. It is found in the ice-cold seas surrounding Antarctica, sometimes at great depths.

Adamussium colbecki

Proboscis_worm.JPG : Henry Kaiser, National Science Foundation derivative work: Cwmhiraeth ( talk ) · Public Domain · 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
AdamussiumPBDB
Diet
suspension feederPBDB, for Pectinidae
Life habit
low-level epifaunalPBDB, for Pectinidae
Motility
facultatively mobilePBDB, for Pectinidae
Vision
limitedPBDB, for Pectinidae
Environment
marinePBDB, for Pectinida

Time the record covers

At least 7.2 million years on record.

The record covers at least 7.246 Mya to 11.7 ka. No occurrence read is dated outside 11.63 Mya to 0 Mya.

Miocene — about 1 of 2 occurrencesMiocenePliocene — about 0 of 2 occurrencesPleistocene — about 0 of 2 occurrencesHolocene — about 1 of 2 occurrences12–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.7 Mya — about 0.1 occurrences9.7–9.3 Mya — about 0.1 occurrences9.3–8.9 Mya — about 0.1 occurrences8.9–8.5 Mya — about 0.1 occurrences8.5–8.1 Mya — about 0.1 occurrences8.1–7.7 Mya — about 0.1 occurrences7.7–7.3 Mya — about 0.1 occurrences7.3–6.9 Mya — about 0.0 occurrences404 ka–0 Mya — about 1 occurrence7.246 Mya11.7 ka12.1 Mya0 Mya

2 occurrences of Adamussium colbecki on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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.

Found in

1 formation

Fisher Bench — 71.56°S, 67.72°E

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The named rock units Adamussium colbecki has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Adamussium colbecki and its relatives

Miocene

Where Adamussium colbecki and its relatives were recorded in the Miocene.

Found in the same rock

27 taxa

The Paleobiology Database records 2 sites for Adamussium colbecki, 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

2 references

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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Adamussium colbecki

Credit
Proboscis_worm.JPG : Henry Kaiser, National Science Foundation derivative work: Cwmhiraeth ( talk )
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Adamussium colbecki 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 itAdamussium through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Smith 1902)