Trizonium

No picture of Trizonium 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 Trizonium, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PyloniidaePBDB

Time the record covers

At most 12 million years on record.

Every occurrence read is dated to somewhere between 469.4 Mya and 458.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 3 of 3 occurrencesOrdovician469–469 Mya — about 0.1 occurrences469–469 Mya — about 0.1 occurrences469–468 Mya — about 0.1 occurrences468–468 Mya — about 0.1 occurrences468–467 Mya — about 0.1 occurrences467–467 Mya — about 0.1 occurrences467–467 Mya — about 0.1 occurrences467–466 Mya — about 0.1 occurrences466–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–465 Mya — about 0.1 occurrences465–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–464 Mya — about 0.1 occurrences464–463 Mya — about 0.1 occurrences463–463 Mya — about 0.1 occurrences463–463 Mya — about 0.1 occurrences463–462 Mya — about 0.1 occurrences462–462 Mya — about 0.1 occurrences462–461 Mya — about 0.1 occurrences461–461 Mya — about 0.1 occurrences461–461 Mya — about 0.1 occurrences461–460 Mya — about 0.1 occurrences460–460 Mya — about 0.1 occurrences460–459 Mya — about 0.1 occurrences459–459 Mya — about 0.1 occurrences459–459 Mya — about 0.1 occurrences459–458 Mya — about 0.1 occurrences469.9 Mya457.7 Mya

3 occurrences of Trizonium on record, most of them in the Ordovician. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

3 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

1 formation

Shihtien — 25.00°N, 99.06°EShihtien — 24.77°N, 99.15°E

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

Trizonium and its relatives

Ordovician

Where Trizonium and its relatives were recorded in the Ordovician.

Found in the same rock

24 taxa

The Paleobiology Database records 2 sites for Trizonium, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

1 reference

Each of the 3 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 Trizonium 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 Trizonium, or no answer at all. This entry cannot say which.

No 3D scan of Trizonium 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 itPyloniidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Haeckel 1887