Healdia arkonensis

Healdia arkonensis

via iDigBio · CC BY-NC-SA · 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
HealdiaPBDB
Diet
detritivore, grazerPBDB, for Podocopida
Life habit
epifaunalPBDB, for Podocopida
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At most 5.7 million years on record.

Every occurrence read is dated to somewhere between 387.95 Mya and 382.31 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 9 of 9 occurrencesDevonian388–388 Mya — about 0.3 occurrences388–388 Mya — about 0.4 occurrences388–387 Mya — about 0.4 occurrences387–387 Mya — about 0.4 occurrences387–387 Mya — about 0.4 occurrences387–387 Mya — about 0.4 occurrences387–386 Mya — about 0.4 occurrences386–386 Mya — about 0.4 occurrences386–386 Mya — about 0.4 occurrences386–386 Mya — about 0.4 occurrences386–386 Mya — about 0.4 occurrences386–385 Mya — about 0.4 occurrences385–385 Mya — about 0.4 occurrences385–385 Mya — about 0.4 occurrences385–385 Mya — about 0.4 occurrences385–384 Mya — about 0.4 occurrences384–384 Mya — about 0.4 occurrences384–384 Mya — about 0.4 occurrences384–384 Mya — about 0.4 occurrences384–384 Mya — about 0.4 occurrences384–383 Mya — about 0.4 occurrences383–383 Mya — about 0.4 occurrences383–383 Mya — about 0.4 occurrences383–383 Mya — about 0.4 occurrences383–382 Mya — about 0.4 occurrences382–382 Mya — about 0.3 occurrences388.4 Mya381.8 Mya

9 occurrences of Healdia arkonensis on record, most of them in the Devonian. 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

2 formations

Silica — 41.68°N, 83.73°WSilica — 42.13°N, 83.60°WSilica — 42.33°N, 83.03°WMoscow — 42.72°N, 78.97°WMoscow — 42.88°N, 78.03°WMoscow — 42.77°N, 77.88°W

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

Healdia arkonensis and its relatives

Devonian

Where Healdia arkonensis and its relatives were recorded in the Devonian.

Found in the same rock

228 taxa

The Paleobiology Database records 8 sites for Healdia arkonensis, 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 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Healdia arkonensis

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-SA
Commercial use
the licence does not allow it

No 3D scan of Healdia arkonensis 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 itHealdia through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Coryell and Malkin 1936