Leanchoiliidae

Leanchoiliidae

Joachim T Haug, Derek EG Briggs & Carolin Haug · CC BY 2.0 · via Wikidata/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
LeanchoiliidaPBDB
Motility
actively mobilePBDB, for Arthropoda

Time the record covers

At least 63 million years on record.

The record covers at least 516 Mya to 452.8 Mya. No occurrence read is dated outside 521 Mya to 445.2 Mya.

Cambrian — about 81 of 82 occurrencesCambrianOrdovician — about 1 of 82 occurrencesOrdovician523–520 Mya — about 8 occurrences520–517 Mya — about 20 occurrences517–515 Mya — about 13 occurrences515–512 Mya — about 3 occurrences512–509 Mya — about 3 occurrences509–507 Mya — about 17 occurrences507–504 Mya — about 10 occurrences504–501 Mya — about 3 occurrences501–499 Mya — about 3 occurrences499–496 Mya — about 2 occurrences454–452 Mya — about 0.2 occurrences452–449 Mya — about 0.3 occurrences449–446 Mya — about 0.3 occurrences446–444 Mya — about 0.1 occurrences516 Mya452.8 Mya523 Mya444 Mya

82 occurrences of Leanchoiliidae 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

82 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

Burgess Shale — 51.44°N, 116.47°WBurgess Shale — 51.39°N, 116.43°WYuanshan — 24.81°N, 102.58°EYuanshan — 24.67°N, 102.65°EYuanshan — 24.84°N, 102.41°EYuanshan — 25.40°N, 103.38°EYuanshan — 25.72°N, 103.99°EYu'anshan — 25.33°N, 103.50°EYu'anshan — 24.77°N, 102.58°EQiongzhusi — 24.65°N, 102.97°EQiongzhusi — 24.68°N, 102.98°EQiongzhusi — 24.63°N, 102.95°EQiongzhusi — 24.72°N, 102.95°EWheeler Shale — 39.31°N, 113.29°WBalang — 28.42°N, 109.42°EMarjum — 39.25°N, 113.36°WMarjum — 39.27°N, 113.31°WLead Bell Shale — 42.00°N, 112.00°WLangston — 41.59°N, 112.04°WWulongqing — 24.95°N, 102.80°EMarsden Sandstone — 35.58°S, 137.50°EUtica Shale — 43.21°N, 75.46°W

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

Leanchoiliidae and its relatives

Cambrian

Where Leanchoiliidae and its relatives were recorded in the Cambrian.

Found in the same rock

665 taxa

The Paleobiology Database records 63 sites for Leanchoiliidae, 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

18 references

Each of the 82 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. 6 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 Leanchoiliidae

Credit
Joachim T Haug, Derek EG Briggs & Carolin Haug
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Leanchoiliidae was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itLeanchoiliida through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Raymond 1935