Pterocephaliidae

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

On record

Recorded, not inferred
Sits inside
OlenidaPBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 6.8 million years on record.

The record covers at least 497 Mya to 490.2 Mya. No occurrence read is dated outside 500.5 Mya to 486.85 Mya.

Cambrian — about 476 of 476 occurrencesCambrianOrdovician — about 0 of 476 occurrences501–500 Mya — about 0.7 occurrences500–500 Mya — about 0.7 occurrences500–499 Mya — about 1 occurrence499–499 Mya — about 2 occurrences499–498 Mya — about 2 occurrences498–498 Mya — about 2 occurrences498–497 Mya — about 2 occurrences497–497 Mya — about 33 occurrences497–496 Mya — about 41 occurrences496–496 Mya — about 41 occurrences496–495 Mya — about 41 occurrences495–495 Mya — about 40 occurrences495–494 Mya — about 39 occurrences494–494 Mya — about 37 occurrences494–493 Mya — about 23 occurrences493–493 Mya — about 15 occurrences493–492 Mya — about 13 occurrences492–492 Mya — about 13 occurrences492–491 Mya — about 13 occurrences491–491 Mya — about 13 occurrences491–490 Mya — about 13 occurrences490–490 Mya — about 14 occurrences490–489 Mya — about 14 occurrences489–489 Mya — about 14 occurrences489–488 Mya — about 13 occurrences488–488 Mya — about 13 occurrences488–487 Mya — about 13 occurrences487–487 Mya — about 12 occurrences497 Mya490.2 Mya501 Mya486.4 Mya

476 occurrences of Pterocephaliidae 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

476 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

51 formations

Orr — 36.17°N, 115.14°WOrr — 38.80°N, 113.35°WOrr — 38.70°N, 113.44°WOrr — 39.74°N, 113.41°WOrr — 38.83°N, 112.89°WOrr — 38.54°N, 113.54°WOrr — 39.22°N, 113.40°WCollier Shale — 35.00°N, 93.00°WCollier Shale — 34.67°N, 93.23°WCollier Shale — 34.71°N, 92.98°WCollier Shale — 34.68°N, 93.08°WNopah — 40.00°N, 115.00°WNopah — 39.00°N, 116.00°WNopah — 36.32°N, 116.99°WNopah — 36.58°N, 117.10°WNopah — 36.46°N, 116.77°WNopah — 36.77°N, 117.54°WNopah — 36.78°N, 117.55°WDunderberg Shale — 39.97°N, 114.88°WWilberns — 30.43°N, 98.37°WWilberns — 30.62°N, 98.51°WWilberns — 30.68°N, 98.33°WWilberns — 30.64°N, 98.26°WWilberns — 30.86°N, 98.90°WWilberns — 30.26°N, 98.58°WWilberns — 30.51°N, 98.73°WWilberns — 31.00°N, 99.26°WDavis — 39.64°N, 86.86°WDavis — 37.93°N, 90.73°WDavis — 37.84°N, 90.53°WDavis — 37.97°N, 90.03°WCorset Spring Shale — 38.52°N, 114.97°WCorset Spring Shale — 38.87°N, 114.32°WWindfall — 37.15°N, 116.00°WWindfall — 39.45°N, 115.97°WReagan Sandstone — 34.82°N, 98.41°WGatesburg — 40.38°N, 78.20°WGatesburg — 40.76°N, 77.18°WGatesburg — 41.38°N, 75.46°WGatesburg — 41.80°N, 78.68°WZhumabai — 43.53°N, 69.95°EKulyumbe — 68.00°N, 88.82°EKulyumbe — 68.00°N, 88.53°EMachari — 37.31°N, 128.44°EKul'bich — 51.97°N, 85.97°ERabbitkettle — 62.70°N, 128.38°WRabbitkettle — 63.37°N, 128.60°WLincoln Peak — 38.87°N, 114.32°WHoney Creek Limestone — 34.39°N, 97.12°WJones Ridge Limestone — 65.08°N, 141.10°WJones Ridge Limestone — 65.00°N, 141.00°WJohns Wash Limestone — 38.52°N, 114.97°WJohns Wash Limestone — 38.87°N, 114.32°WLangyashan — 32.27°N, 118.25°EGorbiyachin — 68.00°N, 88.82°EGorbiyachin — 68.30°N, 88.53°EChopko — 68.92°N, 88.67°EDeadwood — 47.42°N, 105.59°WDeadwood — 44.42°N, 103.71°WBison Creek — 51.50°N, 116.20°W

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The named rock units Pterocephaliidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 27 further formations hold fewer occurrences each and are not listed. 25 occurrences have no formation on record, which is common for older literature.

Pterocephaliidae and its relatives

Cambrian

Where Pterocephaliidae and its relatives were recorded in the Cambrian.

Found in the same rock

312 taxa

The Paleobiology Database records 266 sites for Pterocephaliidae, and this reads 240 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

56 references

Each of the 476 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. 44 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 Pterocephaliidae 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 Pterocephaliidae, or no answer at all. This entry cannot say which.

No 3D scan of Pterocephaliidae 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 itOlenida through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayashi 1935