Helmersenia

Helmersenia

via iDigBio · CC BY · 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
SiphonotretidaePBDB
Diet
suspension feederPBDB, for Brachiopoda
Life habit
low-level epifaunalPBDB, for Brachiopoda
Motility
stationary, attachedPBDB, for Brachiopoda
Vision
blindPBDB, for Lingulata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 37 million years on record.

The record covers at least 486.85 Mya to 449.2 Mya. No occurrence read is dated outside 497 Mya to 445.2 Mya.

Cambrian — about 1 of 9 occurrencesCambrianOrdovician — about 8 of 9 occurrencesOrdovician498–496 Mya — about 0.1 occurrences496–494 Mya — about 0.2 occurrences494–493 Mya — about 0.2 occurrences493–491 Mya — about 0.2 occurrences491–489 Mya — about 0.3 occurrences489–487 Mya — about 0.3 occurrences487–485 Mya — about 2 occurrences485–484 Mya — about 2 occurrences484–482 Mya — about 0.1 occurrences482–480 Mya — about 0.1 occurrences480–478 Mya — about 0.1 occurrences478–476 Mya — about 0.1 occurrences476–475 Mya — about 0.1 occurrences475–473 Mya — about 0.1 occurrences473–471 Mya — about 0.1 occurrences453–451 Mya — about 0.4 occurrences451–450 Mya — about 0.5 occurrences450–448 Mya — about 0.8 occurrences448–446 Mya — about 0.9 occurrences446–444 Mya — about 0.4 occurrences486.85 Mya449.2 Mya498 Mya444 Mya

9 occurrences of Helmersenia on record, most of them in the Ordovician. 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

9 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

5 formations

Kallavere — 58.99°N, 22.61°EKallavere — 59.30°N, 26.56°EKallavere — 59.55°N, 26.18°EDolbor — 63.00°N, 95.00°EDolbor — 62.14°N, 91.56°EBur — 63.00°N, 95.00°ETosnensky — 59.66°N, 30.68°ETosnenskaya — 58.24°N, 29.08°E

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

Helmersenia and its relatives

Ordovician

Where Helmersenia and its relatives were recorded in the Ordovician.

Found in the same rock

82 taxa

The Paleobiology Database records 9 sites for Helmersenia, 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

4 references

Each of the 9 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. 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 content1

Picture of Helmersenia

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Helmersenia 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 itSiphonotretidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Pander 1861