Astarte borealis

Astarte borealis or Tridonta borealis, the boreal astarte, is a species of bivalve mollusc in the family Astartidae. It can be found in the Arctic Ocean and in the northern Pacific and Atlantic Oceans.

Astarte borealis

H. Zell · 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
AstartePBDB
Diet
suspension feederPBDB, for Crassatelloidea
Life habit
infaunalPBDB, for Crassatelloidea
Motility
facultatively mobilePBDB, for Crassatelloidea
Vision
blindPBDB, for Crassatelloidea
Environment
marinePBDB, for Crassatelloidea

Time the record covers

At least 2.5 million years on record.

The record covers at least 2.58 Mya to 11.7 ka. No occurrence read is dated outside 3.6 Mya to 0 Mya.

Pliocene — about 4 of 65 occurrencesPliocenePleistocene — about 44 of 65 occurrencesPleistoceneHolocene — about 17 of 65 occurrences3.7–3.6 Mya — about 0.2 occurrences3.6–3.4 Mya — about 0.5 occurrences3.4–3.3 Mya — about 0.5 occurrences3.3–3.1 Mya — about 0.5 occurrences3.1–3.0 Mya — about 0.5 occurrences3.0–2.9 Mya — about 0.5 occurrences2.9–2.7 Mya — about 0.5 occurrences2.7–2.6 Mya — about 0.5 occurrences2.6–2.5 Mya — about 1 occurrence2.5–2.3 Mya — about 1 occurrence2.3–2.2 Mya — about 1 occurrence2.2–2.0 Mya — about 1 occurrence2.0–1.9 Mya — about 1 occurrence1.9–1.8 Mya — about 1 occurrence1.8–1.6 Mya — about 1 occurrence1.6–1.5 Mya — about 1 occurrence1.5–1.4 Mya — about 1 occurrence1.4–1.2 Mya — about 1 occurrence1.2–1.1 Mya — about 1 occurrence1.1–957 ka Mya — about 1 occurrence957 ka–820 ka Mya — about 1 occurrence820 ka–683 ka Mya — about 0.7 occurrences683 ka–547 ka Mya — about 0.5 occurrences547 ka–410 ka Mya — about 0.5 occurrences410 ka–273 ka Mya — about 0.5 occurrences273 ka–137 ka Mya — about 0.5 occurrences137 ka–0 Mya — about 43 occurrences2.58 Mya11.7 ka4.1 Mya0 Mya

65 occurrences of Astarte borealis on record, most of them in the Pleistocene. 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

65 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

7 formations

Gubik — 70.90°N, 155.96°WGubik — 70.85°N, 158.81°WGubik — 71.39°N, 156.48°WKap Kobenhavn — 82.38°N, 21.00°WKap Kobenhavn — 82.47°N, 21.00°WKap Kobenhavn — 82.54°N, 20.50°WKap Kobenhavn — 81.00°N, 21.00°WSaxicava Clay — 49.58°N, 57.93°WTentokuji — 39.75°N, 140.41°EPresumpscot — 43.64°N, 70.26°WMammaliferous Crag — 52.58°N, 1.38°WHolderness — 54.10°N, 0.21°W

Loading coastlines…

The named rock units Astarte borealis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 44 occurrences have no formation on record, which is common for older literature.

Astarte borealis and its relatives

Pleistocene

Where Astarte borealis and its relatives were recorded in the Pleistocene.

Found in the same rock

222 taxa

The Paleobiology Database records 19 sites for Astarte borealis, 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

14 references

Each of the 65 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. 2 further references are not listed. 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 content2

Picture of Astarte borealis

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Astarte borealis · USNM:IZ:USNM 76510

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 itAstarte through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Chemnitz 1784)