Borealis nana

Borealis nana (Nikiforova & Andreeva, 1961), a relative of Borealis nana — not Borealis nana itself

Not Borealis nana. This is Borealis nana (Nikiforova & Andreeva, 1961), a relative — both are Pentameridae.

Nestor, Heldur · CC BY-NC 4.0 · via GBIF. 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
BorealisPBDB
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 most 11 million years on record.

The one occurrence read is dated to somewhere between 443.1 Mya and 432.9 Mya, which is a dating window rather than a span.

Ordovician — about 0 of 1 occurrenceSilurian — about 1 of 1 occurrenceSilurian443–443 Mya — about 0.0 occurrences443–442 Mya — about 0.0 occurrences442–442 Mya — about 0.0 occurrences442–442 Mya — about 0.0 occurrences442–441 Mya — about 0.0 occurrences441–441 Mya — about 0.0 occurrences441–441 Mya — about 0.0 occurrences441–440 Mya — about 0.0 occurrences440–440 Mya — about 0.0 occurrences440–439 Mya — about 0.0 occurrences439–439 Mya — about 0.0 occurrences439–439 Mya — about 0.0 occurrences439–438 Mya — about 0.0 occurrences438–438 Mya — about 0.0 occurrences438–438 Mya — about 0.0 occurrences438–437 Mya — about 0.0 occurrences437–437 Mya — about 0.0 occurrences437–437 Mya — about 0.0 occurrences437–436 Mya — about 0.0 occurrences436–436 Mya — about 0.0 occurrences436–435 Mya — about 0.0 occurrences435–435 Mya — about 0.0 occurrences435–435 Mya — about 0.0 occurrences435–434 Mya — about 0.0 occurrences434–434 Mya — about 0.0 occurrences434–434 Mya — about 0.0 occurrences434–433 Mya — about 0.0 occurrences433–433 Mya — about 0.0 occurrences443.6 Mya432.4 Mya

1 occurrence of Borealis nana 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

1 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

Moyerokan — 67.31°N, 103.83°E

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The named rock units Borealis nana has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Borealis nana and its relatives

Silurian

Where Borealis nana and its relatives were recorded in the Silurian.

Found in the same rock

46 taxa

The Paleobiology Database records 1 site for Borealis nana, 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 1 occurrence 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 Borealis nana (Nikiforova & Andreeva, 1961)

Source
GBIF
Credit
Nestor, Heldur
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan of Borealis nana was found in MorphoSource and Sketchfab.

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 itBorealis through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Nikiforova and Andreeva 1961)