Chiozoon

Chiozoon is a cheirurid phacopid trilobite that existed during the lower Silurian of what is now northeastern Greenland. It was described by Philip D. Lane in 1972, and the type species is Chiozoon cowiei.

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

On record

Recorded, not inferred
Sits inside
CheiruridaePBDB
Diet
carnivorePBDB, for Cheiruridae
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Environment
marinePBDB, for Trilobita

Time the record covers

At most 17 million years on record.

Every occurrence read is dated to somewhere between 443.1 Mya and 426.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 0 of 9 occurrencesSilurian — about 9 of 9 occurrencesSilurian444–443 Mya — about 0.0 occurrences443–442 Mya — about 0.1 occurrences442–442 Mya — about 0.1 occurrences442–441 Mya — about 0.1 occurrences441–441 Mya — about 0.1 occurrences441–440 Mya — about 0.1 occurrences440–440 Mya — about 0.1 occurrences440–439 Mya — about 0.1 occurrences439–438 Mya — about 0.3 occurrences438–438 Mya — about 0.8 occurrences438–437 Mya — about 0.8 occurrences437–437 Mya — about 0.8 occurrences437–436 Mya — about 0.8 occurrences436–435 Mya — about 0.8 occurrences435–435 Mya — about 0.8 occurrences435–434 Mya — about 0.8 occurrences434–434 Mya — about 0.8 occurrences434–433 Mya — about 0.8 occurrences433–433 Mya — about 0.4 occurrences433–432 Mya — about 0.1 occurrences432–431 Mya — about 0.1 occurrences431–431 Mya — about 0.1 occurrences431–430 Mya — about 0.1 occurrences430–430 Mya — about 0.1 occurrences430–429 Mya — about 0.1 occurrences429–429 Mya — about 0.1 occurrences429–428 Mya — about 0.1 occurrences428–427 Mya — about 0.1 occurrences427–427 Mya — about 0.1 occurrences427–426 Mya — about 0.0 occurrences443.6 Mya426.2 Mya

9 occurrences of Chiozoon on record, most of them in the Silurian. 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

9 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

Attawapiskat — 52.93°N, 83.39°WAttawapiskat — 52.96°N, 83.16°WAttawapiskat — 52.94°N, 83.07°WAttawapiskat — 52.91°N, 82.68°WAttawapiskat — 53.45°N, 82.91°WAttawapiskat — 53.45°N, 82.88°WSamuelsen Høj — 80.00°N, 22.00°W

Loading coastlines…

The named rock units Chiozoon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Chiozoon and its relatives

Silurian

Where Chiozoon and its relatives were recorded in the Silurian.

Found in the same rock

33 taxa

The Paleobiology Database records 3 sites for Chiozoon, 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

3 references

Each of the 9 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. 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 content0

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

No 3D scan of Chiozoon 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.

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 itCheiruridae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lane 1972