Crepicephalidae

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

On record

Recorded, not inferred
Sits inside
PtychopariidaPBDB
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 9.3 million years on record.

The record covers at least 504.5 Mya to 495.2 Mya. No occurrence read is dated outside 506.5 Mya to 486.85 Mya.

Cambrian — about 264 of 264 occurrencesCambrianOrdovician — about 0 of 264 occurrences507–506 Mya — about 3 occurrences506–506 Mya — about 10 occurrences506–505 Mya — about 10 occurrences505–504 Mya — about 8 occurrences504–504 Mya — about 5 occurrences504–503 Mya — about 5 occurrences503–502 Mya — about 5 occurrences502–501 Mya — about 5 occurrences501–501 Mya — about 5 occurrences501–500 Mya — about 7 occurrences500–499 Mya — about 9 occurrences499–499 Mya — about 8 occurrences499–498 Mya — about 8 occurrences498–497 Mya — about 8 occurrences497–497 Mya — about 10 occurrences497–496 Mya — about 12 occurrences496–495 Mya — about 12 occurrences495–495 Mya — about 13 occurrences495–494 Mya — about 12 occurrences494–493 Mya — about 11 occurrences493–493 Mya — about 10 occurrences493–492 Mya — about 10 occurrences492–491 Mya — about 10 occurrences491–490 Mya — about 10 occurrences490–490 Mya — about 10 occurrences490–489 Mya — about 10 occurrences489–488 Mya — about 10 occurrences488–488 Mya — about 10 occurrences488–487 Mya — about 10 occurrences487–486 Mya — about 3 occurrences504.5 Mya495.2 Mya507 Mya486.4 Mya

264 occurrences of Crepicephalidae 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

264 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

33 formations

Deadwood — 44.42°N, 103.71°WDeadwood — 44.25°N, 103.78°WDeadwood — 44.28°N, 103.73°WDeadwood — 44.25°N, 103.57°WDeadwood — 44.07°N, 103.22°WDeadwood — 44.00°N, 103.00°WDeadwood — 44.45°N, 104.42°WRiley — 30.64°N, 99.26°WRiley — 30.92°N, 98.61°WRiley — 30.81°N, 98.28°WRiley — 30.91°N, 99.00°WRiley — 30.76°N, 99.41°WRiley — 30.54°N, 99.09°WRiley — 30.49°N, 98.52°WRiley — 30.81°N, 98.37°WZhangxia — 35.57°N, 110.47°EZhangxia — 34.75°N, 110.62°EZhangxia — 34.85°N, 117.55°EZhangxia — 34.63°N, 112.97°EZhangxia — 34.80°N, 111.90°EZhangxia — 35.42°N, 114.05°EZhangxia — 36.63°N, 116.95°EOrr — 38.80°N, 113.35°WOrr — 39.21°N, 113.32°WOrr — 38.54°N, 113.54°WRabbitkettle — 64.67°N, 132.00°WRabbitkettle — 62.70°N, 128.38°WPetit Jardin — 48.66°N, 58.83°WPetit Jardin — 48.63°N, 58.47°WPetit Jardin — 48.74°N, 58.38°WPetit Jardin — 48.68°N, 58.48°WPetit Jardin — 48.50°N, 59.13°WHsuchuang — 32.58°N, 116.85°EHsuchuang — 34.63°N, 112.97°EHsuchuang — 34.80°N, 111.90°EHsuchuang — 35.42°N, 114.05°ENolichucky — 36.75°N, 82.25°WNolichucky — 39.57°N, 106.47°WNolichucky — 36.03°N, 84.08°WWarrior — 40.82°N, 77.93°WHolm Dal — 82.42°N, 39.75°WDresbach — 44.52°N, 89.57°WPilgrim — 44.66°N, 111.10°WDuNoir Limestone — 43.29°N, 109.83°WBoothia Felix — 68.75°N, 93.00°WHuaqiao — 28.39°N, 109.53°EHuaqiao — 28.72°N, 109.97°EMantou — 36.42°N, 116.88°ELaoyingshan — 32.58°N, 116.85°ERaiff Limestone — 39.40°N, 114.78°WWoods Hollow Boulders — 30.03°N, 103.31°WXugou — 32.80°N, 111.45°ECap Mountain — 30.93°N, 99.11°WCap Mountain — 30.82°N, 98.37°WSpurs — 71.34°S, 163.21°EDunderberg Shale — 40.71°N, 111.54°WRoad River — 66.42°N, 135.53°W

Loading coastlines…

The named rock units Crepicephalidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 further formations hold fewer occurrences each and are not listed. 3 occurrences have no formation on record, which is common for older literature.

Crepicephalidae and its relatives

Cambrian

Where Crepicephalidae and its relatives were recorded in the Cambrian.

Found in the same rock

266 taxa

The Paleobiology Database records 130 sites for Crepicephalidae, 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

46 references

Each of the 264 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. 34 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 Crepicephalidae 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 Crepicephalidae, or no answer at all. This entry cannot say which.

No 3D scan of Crepicephalidae 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 itPtychopariida through timeFormations of the CambrianThe world it lived on

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