Borealis

Borealis

via iDigBio · CC0 · via iDigBio. 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
VirgianinaePBDB
Diet
suspension feederPBDB, for Pentamerida
Life habit
epifaunalPBDB, for Pentamerida
Motility
stationaryPBDB, for Pentamerida
Vision
blindPBDB, for Rhynchonellata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 30 million years on record.

The record covers at least 440.8 Mya to 410.62 Mya. No occurrence read is dated outside 443.1 Mya to 399.5 Mya.

Ordovician — about 0 of 53 occurrencesSilurian — about 52 of 53 occurrencesSilurianDevonian — about 1 of 53 occurrencesDevonian444–442 Mya — about 10 occurrences442–441 Mya — about 24 occurrences441–439 Mya — about 8 occurrences439–438 Mya — about 4 occurrences438–436 Mya — about 2 occurrences436–435 Mya — about 2 occurrences435–433 Mya — about 2 occurrences433–432 Mya — about 0.6 occurrences411–409 Mya — about 0.1 occurrences409–408 Mya — about 0.1 occurrences408–406 Mya — about 0.1 occurrences406–405 Mya — about 0.1 occurrences405–403 Mya — about 0.1 occurrences403–402 Mya — about 0.1 occurrences402–400 Mya — about 0.1 occurrences400–399 Mya — about 0.1 occurrences440.8 Mya410.62 Mya444 Mya398.6 Mya

53 occurrences of Borealis on record, most of them in the Silurian. 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

53 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

12 formations

Tamsalu — 58.87°N, 23.04°ETamsalu — 58.80°N, 22.76°ETamsalu — 58.89°N, 23.46°ETamsalu — 58.99°N, 26.35°ETamsalu — 58.68°N, 26.09°ETamsalu — 59.00°N, 25.92°ETamsalu — 59.01°N, 25.61°ETamsalu — 58.93°N, 23.75°ETamsalu — 59.05°N, 24.70°ETamsalu — 59.16°N, 26.09°EKuranakh — 62.93°N, 138.10°EVarbola — 58.69°N, 25.63°EVarbola — 58.80°N, 22.76°EVarbola — 58.71°N, 23.76°EVarbola — 58.89°N, 23.40°EMoyerokan — 67.31°N, 103.83°EMoyerokan — 67.34°N, 104.10°EKhaastyrka — 67.32°N, 103.85°EKhaastyrka — 67.33°N, 104.85°EKhaastyrka — 67.34°N, 103.88°EVodopad — 79.64°N, 96.51°ERytteraker — 60.17°N, 10.30°EXiangshuyuan — 27.50°N, 108.23°ESinelnikov — 72.00°N, 52.00°ERaikküla — 57.88°N, 24.37°EAgidyl — 67.35°N, 104.04°EÕhne — 58.66°N, 25.75°E

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The named rock units Borealis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.

Borealis and its relatives

Silurian

Where Borealis and its relatives were recorded in the Silurian.

Found in the same rock

350 taxa

The Paleobiology Database records 46 sites for 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 53 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content3

Picture of Borealis

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Icelinus borealis · OS:Fishes:11331

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itVirgianinae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Boucot et al. 1971