Quadrisonia minor

No picture of Quadrisonia minor was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Quadrisonia minor, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
QuadrisoniaPBDB
Diet
suspension feederPBDB, for Acrotretida
Life habit
epifaunalPBDB, for Acrotretida
Motility
stationary, attachedPBDB, for Acrotretida
Vision
blindPBDB, for Lingulata
Environment
marinePBDB, for Lophophorata

Time the record covers

At most 5.5 million years on record.

Every occurrence read is dated to somewhere between 497 Mya and 491.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 21 of 21 occurrencesCambrian497–497 Mya — about 0.5 occurrences497–497 Mya — about 0.7 occurrences497–496 Mya — about 0.7 occurrences496–496 Mya — about 0.7 occurrences496–496 Mya — about 0.7 occurrences496–496 Mya — about 0.7 occurrences496–496 Mya — about 0.7 occurrences496–495 Mya — about 0.7 occurrences495–495 Mya — about 0.7 occurrences495–495 Mya — about 0.7 occurrences495–495 Mya — about 0.7 occurrences495–494 Mya — about 0.7 occurrences494–494 Mya — about 0.7 occurrences494–494 Mya — about 0.7 occurrences494–494 Mya — about 0.7 occurrences494–494 Mya — about 0.7 occurrences494–493 Mya — about 0.7 occurrences493–493 Mya — about 0.7 occurrences493–493 Mya — about 0.7 occurrences493–493 Mya — about 0.9 occurrences493–493 Mya — about 1 occurrence493–492 Mya — about 1 occurrence492–492 Mya — about 1 occurrence492–492 Mya — about 1 occurrence492–492 Mya — about 1 occurrence492–491 Mya — about 0.8 occurrences497.5 Mya491 Mya

21 occurrences of Quadrisonia minor 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

21 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

Zhumabai — 43.53°N, 69.95°EBestogai — 43.53°N, 69.95°E

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

Quadrisonia minor and its relatives

Cambrian

Where Quadrisonia minor and its relatives were recorded in the Cambrian.

Found in the same rock

The Paleobiology Database records no fossil sites for Quadrisonia minor, so there is nothing to compare it with.

Entered from

1 reference

Each of the 21 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 content0

No picture of Quadrisonia minor was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Quadrisonia minor, or no answer at all. This entry cannot say which.

No 3D scan of Quadrisonia minor 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 itQuadrisonia through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rowell and Henderson 1978