Coronocephalus

Coronocephalus is an extinct genus of trilobites in the Phacopid family Encrinuridae. Species are from the Silurian of Australia and Japan, and from the Silurian and Ordovician of China.

Coronocephalus

Ghedoghedo · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
EncrinurinaePBDB
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 10 million years on record.

The record covers at least 443.1 Mya to 432.9 Mya. No occurrence read is dated outside 449.5 Mya to 426.7 Mya.

Ordovician — about 1 of 15 occurrencesOrdovicianSilurian — about 14 of 15 occurrencesSilurian450–449 Mya — about 0.0 occurrences449–448 Mya — about 0.1 occurrences448–448 Mya — about 0.1 occurrences448–447 Mya — about 0.1 occurrences447–446 Mya — about 0.1 occurrences446–445 Mya — about 0.1 occurrences445–444 Mya — about 0.1 occurrences444–444 Mya — about 0.1 occurrences444–443 Mya — about 0.1 occurrences443–442 Mya — about 0.2 occurrences442–441 Mya — about 0.2 occurrences441–440 Mya — about 0.2 occurrences440–440 Mya — about 0.6 occurrences440–439 Mya — about 0.6 occurrences439–438 Mya — about 0.8 occurrences438–437 Mya — about 0.9 occurrences437–437 Mya — about 0.9 occurrences437–436 Mya — about 0.9 occurrences436–435 Mya — about 0.9 occurrences435–434 Mya — about 0.9 occurrences434–433 Mya — about 0.9 occurrences433–433 Mya — about 0.9 occurrences433–432 Mya — about 0.9 occurrences432–431 Mya — about 0.9 occurrences431–430 Mya — about 0.7 occurrences430–429 Mya — about 0.6 occurrences429–429 Mya — about 0.6 occurrences429–428 Mya — about 0.6 occurrences428–427 Mya — about 0.6 occurrences427–426 Mya — about 0.2 occurrences443.1 Mya432.9 Mya450 Mya426.2 Mya

15 occurrences of Coronocephalus on record, most of them in the Silurian. 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

15 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

8 formations

Xiushan — 28.00°N, 108.00°EXiushan — 28.55°N, 108.85°EFentou — 32.05°N, 119.05°EWalker Volcanics — 35.00°S, 149.00°EUpper Wengxiang — 26.50°N, 108.00°EXiajiaqiao — 29.25°N, 114.83°EPoley Cow — 19.00°S, 145.00°EShihniulan — 28.98°N, 107.08°EWangjiawan — 32.80°N, 106.25°E

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The named rock units Coronocephalus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Coronocephalus and its relatives

Silurian

Where Coronocephalus and its relatives were recorded in the Silurian.

Found in the same rock

146 taxa

The Paleobiology Database records 12 sites for Coronocephalus, 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

8 references

Each of the 15 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 content1

Picture of Coronocephalus

Credit
Ghedoghedo
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Coronocephalus 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itEncrinurinae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Grabau 1924