Hallucigenia sparsa

Hallucigenia sparsa

Captmondo · CC BY-SA 3.0 · 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
HallucigeniaPBDB
Diet
grazerPBDB, for Hallucigenia
Life habit
epifaunalPBDB, for Hallucigenia
Motility
actively mobilePBDB, for Hallucigenia
Vision
limitedPBDB, for Hallucigenia

Time the record covers

At least 4.8 million years on record.

The record covers at least 514.5 Mya to 509.7 Mya. No occurrence read is dated outside 521 Mya to 505.3 Mya.

Cambrian — about 7 of 7 occurrencesCambrian522–521 Mya — about 0.0 occurrences521–520 Mya — about 0.1 occurrences520–520 Mya — about 0.1 occurrences520–519 Mya — about 0.1 occurrences519–519 Mya — about 0.1 occurrences519–518 Mya — about 0.1 occurrences518–518 Mya — about 0.1 occurrences518–517 Mya — about 0.1 occurrences517–516 Mya — about 0.1 occurrences516–516 Mya — about 0.1 occurrences516–515 Mya — about 0.1 occurrences515–515 Mya — about 0.1 occurrences515–514 Mya — about 0.0 occurrences510–509 Mya — about 0.6 occurrences509–509 Mya — about 0.8 occurrences509–508 Mya — about 0.8 occurrences508–508 Mya — about 0.8 occurrences508–507 Mya — about 0.8 occurrences507–506 Mya — about 0.8 occurrences506–506 Mya — about 0.8 occurrences506–505 Mya — about 0.8 occurrences505–505 Mya — about 0.1 occurrences514.5 Mya509.7 Mya521.5 Mya504.8 Mya

7 occurrences of Hallucigenia sparsa 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

7 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

Burgess Shale — 51.44°N, 116.47°WWulongqing — 24.93°N, 102.82°E

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

Hallucigenia sparsa and its relatives

Cambrian

Where Hallucigenia sparsa and its relatives were recorded in the Cambrian.

Found in the same rock

119 taxa

The Paleobiology Database records 7 sites for Hallucigenia sparsa, 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 7 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Hallucigenia sparsa

Credit
Captmondo
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itHallucigenia through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Conway Morris 1977