Periodon

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

On record

Recorded, not inferred
Sits inside
OzarkodinidaPBDB
Diet
carnivorePBDB, for Conodonta
Life habit
nektonicPBDB, for Conodonta
Motility
actively mobilePBDB, for Conodonta
Vision
well-developedPBDB, for Conodonta

Time the record covers

At least 27 million years on record.

The record covers at least 473.1 Mya to 445.2 Mya. No occurrence read is dated outside 488.9 Mya to 443.1 Mya.

Cambrian — about 0 of 265 occurrencesOrdovician — about 265 of 265 occurrencesOrdovicianSilurian — about 0 of 265 occurrences490–488 Mya — about 0.0 occurrences488–487 Mya — about 0.2 occurrences487–485 Mya — about 0.9 occurrences485–483 Mya — about 0.9 occurrences483–482 Mya — about 1 occurrence482–480 Mya — about 1 occurrence480–479 Mya — about 1 occurrence479–477 Mya — about 1 occurrence477–476 Mya — about 9 occurrences476–474 Mya — about 12 occurrences474–472 Mya — about 12 occurrences472–471 Mya — about 19 occurrences471–469 Mya — about 29 occurrences469–468 Mya — about 14 occurrences468–466 Mya — about 13 occurrences466–464 Mya — about 13 occurrences464–463 Mya — about 13 occurrences463–461 Mya — about 13 occurrences461–460 Mya — about 17 occurrences460–458 Mya — about 15 occurrences458–456 Mya — about 8 occurrences456–455 Mya — about 9 occurrences455–453 Mya — about 7 occurrences453–452 Mya — about 10 occurrences452–450 Mya — about 12 occurrences450–449 Mya — about 11 occurrences449–447 Mya — about 9 occurrences447–445 Mya — about 9 occurrences445–444 Mya — about 2 occurrences444–442 Mya — about 0.7 occurrences473.1 Mya445.2 Mya489.8 Mya442.2 Mya

265 occurrences of Periodon on record, most of them in the Ordovician. 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

265 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

60 formations

Welling — 34.60°N, 96.63°WWelling — 35.81°N, 94.89°WWelling — 34.00°N, 97.00°WGreen Point — 49.85°N, 57.80°WLas Aguaditas — 30.36°S, 68.80°WZitai — 30.28°N, 117.37°EDawan — 33.00°N, 111.00°EDawan — 32.00°N, 119.00°EDawan — 30.86°N, 110.37°ESan Juan — 30.00°S, 69.00°WSan Juan — 30.36°S, 68.80°WVolkhov Stage — 59.87°N, 31.43°EAntelope Valley — 39.09°N, 116.85°WAntelope Valley — 36.88°N, 116.65°WAntelope Valley — 39.23°N, 116.41°WAntelope Valley — 39.02°N, 116.70°WAntelope Valley — 39.07°N, 116.72°WShallow Bay — 49.96°N, 57.77°WSkoki — 56.63°N, 123.78°WOspika — 57.02°N, 124.22°WVolkhov — 59.87°N, 31.43°ESlaty Creek — 40.69°S, 172.49°EGongwusu — 39.39°N, 106.92°EBaota — 32.00°N, 119.00°EBaota — 31.00°N, 121.00°EZagornyi — 68.00°N, 88.00°EZagornyi — 62.00°N, 90.00°EValhallfonna — 79.67°N, 17.25°EValhallfonna — 79.80°N, 17.76°EToila — 59.43°N, 24.78°EDenley Limestone — 43.21°N, 75.46°WDenley Limestone — 44.00°N, 75.00°WDenley Limestone — 43.28°N, 75.14°WGuniutan — 33.00°N, 111.00°EGuniutan — 32.00°N, 119.00°EBad Cache Rapids — 68.00°N, 85.00°WRobb — 56.63°N, 123.78°WKaki Bukit — 6.43°N, 99.87°EVoskresenka — 51.17°N, 82.05°EVoskresenka — 51.44°N, 83.15°EVoskresenka — 51.62°N, 82.62°E

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The named rock units Periodon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 36 further formations hold fewer occurrences each and are not listed. 7 occurrences have no formation on record, which is common for older literature.

Periodon and its relatives

Ordovician

Where Periodon and its relatives were recorded in the Ordovician.

Found in the same rock

674 taxa

The Paleobiology Database records 228 sites for Periodon, 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

55 references

Each of the 265 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. 43 further references are not listed. 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 Periodon 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 Periodon, or no answer at all. This entry cannot say which.

No 3D scan of Periodon 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 itOzarkodinida through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hadding 1913