Ptyocephalus

Searched as Kirkella. The Paleobiology Database treats Ptyocephalus as the accepted name.

No picture of Ptyocephalus was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Ptyocephalus itself, so it was not used. 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 Ptyocephalus, or no answer at all. This entry cannot say which.

On record

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

Time the record covers

At least 173 million years on record.

The record covers at least 477.1 Mya to 303.7 Mya. No occurrence read is dated outside 488.9 Mya to 298.9 Mya.

Cambrian — about 0 of 94 occurrencesOrdovician — about 90 of 94 occurrencesOrdovicianSilurian — about 0 of 94 occurrencesDevonian — about 0 of 94 occurrencesCarboniferous — about 4 of 94 occurrencesCarboniferousPermian — about 0 of 94 occurrences493–486 Mya — about 0.7 occurrences486–480 Mya — about 15 occurrences480–473 Mya — about 46 occurrences473–466 Mya — about 25 occurrences466–460 Mya — about 0.9 occurrences460–453 Mya — about 1 occurrence453–447 Mya — about 0.1 occurrences315–308 Mya — about 0.7 occurrences308–302 Mya — about 3 occurrences302–295 Mya — about 0.6 occurrences477.1 Mya303.7 Mya493 Mya295 Mya

94 occurrences of Ptyocephalus 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

94 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

17 formations

Ninemile — 39.20°N, 116.44°WNinemile — 37.00°N, 116.00°WNinemile — 39.00°N, 116.00°WNinemile — 36.65°N, 116.17°WNinemile — 37.34°N, 115.38°WNinemile — 37.30°N, 115.80°WNinemile — 39.20°N, 116.25°WNinemile — 36.39°N, 116.61°WNinemile — 36.79°N, 117.54°WNinemile — 38.28°N, 116.42°WNinemile — 36.27°N, 115.68°WOutram — 52.88°N, 118.08°WOutram — 50.68°N, 116.04°WFillmore Limestone — 38.92°N, 113.36°WFillmore Limestone — 38.82°N, 113.44°WFillmore Limestone — 38.84°N, 113.46°WFillmore Limestone — 39.17°N, 112.17°WWah Wah — 38.85°N, 113.46°WGarden City — 40.16°N, 110.40°WGarden City — 41.92°N, 112.15°WGarden City — 41.52°N, 111.94°WGarden City — 42.00°N, 111.47°WGarden City — 40.89°N, 112.82°WDeadwood — 47.15°N, 110.22°WFillmore — 38.85°N, 113.46°WFillmore — 38.88°N, 113.34°WFillmore — 39.84°N, 113.46°WSkoki — 52.88°N, 118.08°WWoodward D — 39.48°N, 114.92°WCherryvale shale — 39.09°N, 94.57°WShingle Limestone — 39.62°N, 115.07°WSurvey Peak — 54.02°N, 121.68°WAntelope Valley — 37.12°N, 116.50°WValhallfonna — 79.80°N, 17.76°EForaker — 39.83°N, 95.37°WKhankhara — 51.07°N, 84.94°EMinturn — 39.90°N, 107.77°W

Loading coastlines…

The named rock units Ptyocephalus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Ptyocephalus and its relatives

Ordovician

Where Ptyocephalus and its relatives were recorded in the Ordovician.

Found in the same rock

218 taxa

The Paleobiology Database records 90 sites for Ptyocephalus, 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

21 references

Each of the 94 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. 9 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 content1

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

No picture of Ptyocephalus was found. Wikidata and iDigBio were searched and had none.

Wikipedia has a picture filed under this name, but nothing tied it to Ptyocephalus itself, so it was not used.

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 Ptyocephalus, or no answer at all. This entry cannot say which.

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 itAsaphidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayashi 1942