Halkieriidae

The halkieriids are a group of fossil organisms from the Lower to Middle Cambrian. Their eponymous genus is Halkieria.

Halkieriidae

Qohelet12 · CC BY-SA 4.0 · 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
AculiferaPBDB
Diet
grazerPBDB
Life habit
epifaunalPBDB
Motility
actively mobilePBDB

Time the record covers

At least 18 million years on record.

The record covers at least 530.7 Mya to 512.1 Mya. No occurrence read is dated outside 538.8 Mya to 506.5 Mya.

Cambrian — about 314 of 314 occurrencesCambrian539–538 Mya — about 1 occurrence538–537 Mya — about 3 occurrences537–536 Mya — about 3 occurrences536–535 Mya — about 3 occurrences535–534 Mya — about 3 occurrences534–533 Mya — about 3 occurrences533–532 Mya — about 3 occurrences532–530 Mya — about 6 occurrences530–529 Mya — about 17 occurrences529–528 Mya — about 17 occurrences528–527 Mya — about 18 occurrences527–526 Mya — about 18 occurrences526–525 Mya — about 24 occurrences525–524 Mya — about 29 occurrences524–523 Mya — about 29 occurrences523–522 Mya — about 29 occurrences522–520 Mya — about 19 occurrences520–519 Mya — about 11 occurrences519–518 Mya — about 11 occurrences518–517 Mya — about 11 occurrences517–516 Mya — about 11 occurrences516–515 Mya — about 9 occurrences515–514 Mya — about 10 occurrences514–513 Mya — about 10 occurrences513–511 Mya — about 6 occurrences511–510 Mya — about 3 occurrences510–509 Mya — about 3 occurrences509–508 Mya — about 2 occurrences508–507 Mya — about 0.4 occurrences507–506 Mya — about 0.2 occurrences530.7 Mya512.1 Mya539.4 Mya505.9 Mya

314 occurrences of Halkieriidae on record, most of them in the Cambrian. 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

314 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

51 formations

Zhujiaqing — 27.93°N, 103.56°EZhujiaqing — 24.73°N, 102.57°EZhujiaqing — 25.64°N, 103.07°EZhujiaqing — 26.28°N, 103.22°EZhujiaqing — 25.52°N, 103.07°EZhujiaqing — 26.38°N, 103.21°EDengying — 25.08°N, 102.98°EDengying — 25.48°N, 103.03°EDengying — 33.00°N, 107.92°EDengying — 26.63°N, 105.85°EDengying — 30.73°N, 111.13°EDengying — 30.77°N, 111.12°EDengying — 25.52°N, 103.07°EDengying — 24.72°N, 102.56°EZhujianqing — 24.73°N, 102.57°EZhujianqing — 25.52°N, 102.07°EYuhucun — 28.94°N, 121.42°EPestrotsvet — 57.35°N, 131.20°EPestrotsvet — 57.67°N, 131.83°EPestrotsvet — 57.17°N, 132.00°EPestrotsvet — 60.70°N, 124.72°EPestrotsvet — 60.92°N, 125.77°EPestrotsvet — 60.83°N, 125.40°EPestrotsvet — 57.40°N, 132.73°EParara Limestone — 34.92°S, 137.80°EParara — 34.70°S, 137.71°EParara — 34.06°S, 138.02°EParara — 34.73°S, 137.63°EParara — 34.80°S, 137.69°EChulaktau — 43.47°N, 69.87°EChulaktau — 43.62°N, 69.73°EChulaktau — 43.47°N, 69.97°EChulaktau — 43.60°N, 69.45°EYurtus — 41.15°N, 80.25°EYurtus — 40.83°N, 79.67°EYurtus — 40.52°N, 79.05°EYurtus — 40.88°N, 79.47°EShabakty — 43.47°N, 69.87°EShabakty — 43.62°N, 69.73°EShabakty — 43.47°N, 69.97°EAjax Limestone — 30.59°S, 138.33°EWeymouth — 42.03°N, 71.38°WWeymouth — 41.95°N, 71.28°WChapel Island — 46.92°N, 56.00°WChapel Island — 47.00°N, 56.00°WShiyantou — 27.93°N, 103.56°EFosters Point — 46.00°N, 60.00°WFosters Point — 45.77°N, 60.29°WBastion — 74.10°N, 23.00°WKuanchuanpu — 32.50°N, 106.92°EKuanchuanpu — 32.97°N, 106.25°EAftenstjernesø — 81.57°N, 42.92°WAftenstjernesø — 82.30°N, 41.58°WAftenstjernesø — 82.33°N, 40.41°WKrasnoporog — 67.22°N, 87.03°EKrasnoporog — 67.14°N, 86.75°EQiongzhusi — 24.73°N, 102.57°EQiongzhusi — 26.30°N, 103.23°EKulpara Limestone — 34.92°S, 137.80°EKulpara — 34.70°S, 137.71°EKulpara — 34.73°S, 137.63°ESellick Hill — 35.37°S, 138.38°EKessyusa — 71.33°N, 123.97°E

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The named rock units Halkieriidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.

Halkieriidae and its relatives

Cambrian

Where Halkieriidae and its relatives were recorded in the Cambrian.

Found in the same rock

749 taxa

The Paleobiology Database records 225 sites for Halkieriidae, 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

49 references

Each of the 314 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. 37 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 content1

Picture of Halkieriidae

Credit
Qohelet12
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itAculifera through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Poulsen 1967