Hadrocephalites

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

On record

Recorded, not inferred
Sits inside
PtychopariaceaPBDB
Diet
deposit feederPBDB, for Ptychopariina
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Environment
marinePBDB, for Trilobita

Time the record covers

At most 52 million years on record.

Every occurrence read is dated to somewhere between 538.8 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 35 of 35 occurrencesCambrianOrdovician — about 0 of 35 occurrences540–538 Mya — about 0.0 occurrences538–536 Mya — about 0.0 occurrences536–534 Mya — about 0.0 occurrences534–533 Mya — about 0.0 occurrences533–531 Mya — about 0.0 occurrences531–529 Mya — about 0.0 occurrences529–527 Mya — about 0.0 occurrences527–525 Mya — about 0.0 occurrences525–524 Mya — about 0.0 occurrences524–522 Mya — about 0.0 occurrences522–520 Mya — about 0.0 occurrences520–518 Mya — about 0.0 occurrences518–516 Mya — about 0.0 occurrences516–515 Mya — about 0.0 occurrences515–513 Mya — about 0.0 occurrences513–511 Mya — about 0.0 occurrences511–509 Mya — about 0.8 occurrences509–507 Mya — about 5 occurrences507–506 Mya — about 9 occurrences506–504 Mya — about 7 occurrences504–502 Mya — about 4 occurrences502–500 Mya — about 4 occurrences500–498 Mya — about 4 occurrences498–497 Mya — about 3 occurrences497–495 Mya — about 0.0 occurrences495–493 Mya — about 0.0 occurrences493–491 Mya — about 0.0 occurrences491–489 Mya — about 0.0 occurrences489–488 Mya — about 0.0 occurrences488–486 Mya — about 0.0 occurrences540 Mya486 Mya

35 occurrences of Hadrocephalites 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

5 formations

Pioche Shale — 37.89°N, 114.58°WPioche Shale — 37.94°N, 114.50°WPioche Shale — 37.90°N, 114.41°WPioche Shale — 37.63°N, 114.51°WPioche Shale — 37.76°N, 114.55°WMt. Whyte — 51.50°N, 116.50°WMt. Whyte — 51.33°N, 116.23°WMt. Whyte — 51.42°N, 116.45°WMt. Whyte — 51.49°N, 116.08°WMt. Whyte — 50.90°N, 115.62°WCarrara — 37.45°N, 115.73°WCarrara — 36.75°N, 117.07°WCarrara — 37.57°N, 115.76°WRennie Shale — 47.98°N, 116.35°WLa Laja — 31.25°S, 68.57°W

Loading coastlines…

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

Hadrocephalites and its relatives

Cambrian

Where Hadrocephalites and its relatives were recorded in the Cambrian.

Found in the same rock

67 taxa

The Paleobiology Database records 30 sites for Hadrocephalites, 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

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

No 3D scan of Hadrocephalites 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 itPtychopariacea through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sundberg and McCollum 2002