Onymagnostus

No picture of Onymagnostus was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Onymagnostus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PtychagnostidaePBDB
Diet
detritivorePBDB, for Agnostida
Life habit
epifaunalPBDB, for Agnostida
Motility
slow-movingPBDB, for Agnostida
Vision
blindPBDB, for Ptychagnostidae

Time the record covers

At least 4 million years on record.

The record covers at least 504.5 Mya to 500.5 Mya. No occurrence read is dated outside 508.2 Mya to 497 Mya.

Cambrian — about 35 of 35 occurrencesCambrian508–508 Mya — about 0.3 occurrences508–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–506 Mya — about 0.5 occurrences506–506 Mya — about 0.5 occurrences506–505 Mya — about 0.5 occurrences505–505 Mya — about 1 occurrence505–505 Mya — about 2 occurrences505–504 Mya — about 2 occurrences504–504 Mya — about 2 occurrences504–503 Mya — about 2 occurrences503–503 Mya — about 2 occurrences503–503 Mya — about 3 occurrences503–502 Mya — about 3 occurrences502–502 Mya — about 3 occurrences502–501 Mya — about 3 occurrences501–501 Mya — about 3 occurrences501–501 Mya — about 3 occurrences501–500 Mya — about 1 occurrence500–500 Mya — about 0.8 occurrences500–499 Mya — about 0.7 occurrences499–499 Mya — about 0.4 occurrences499–499 Mya — about 0.2 occurrences499–498 Mya — about 0.2 occurrences498–498 Mya — about 0.2 occurrences498–497 Mya — about 0.2 occurrences497–497 Mya — about 0.2 occurrences504.5 Mya500.5 Mya508.7 Mya496.5 Mya

35 occurrences of Onymagnostus 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

35 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

10 formations

Aktas — 43.53°N, 69.95°ECurrant Bush — 19.54°S, 138.86°ECurrant Bush — 19.45°S, 138.62°ECurrant Bush — 19.64°S, 138.93°EAlum Shale — 55.72°N, 13.23°EAlum Shale — 58.76°N, 15.52°EInca — 19.52°S, 138.88°EInca — 20.25°S, 138.82°EJince — 49.78°N, 13.98°EManuel River — 45.42°N, 65.66°WEl Mogallón — 28.91°N, 109.28°WArthur Creek — 21.83°S, 136.50°EV-Creek Limestone — 20.25°S, 138.63°EMariner Group Spurs — 71.38°S, 162.83°E

Loading coastlines…

The named rock units Onymagnostus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Onymagnostus and its relatives

Cambrian

Where Onymagnostus and its relatives were recorded in the Cambrian.

Found in the same rock

152 taxa

The Paleobiology Database records 21 sites for Onymagnostus, 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

9 references

Each of the 35 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 Onymagnostus was found. Wikidata and iDigBio were searched and had none.

Wikipedia and 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 Onymagnostus, or no answer at all. This entry cannot say which.

No 3D scan of Onymagnostus 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 itPtychagnostidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Opik 1979