Pentagonocyclicus

No picture of Pentagonocyclicus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Pentagonocyclicus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
CrinoideaPBDB
Diet
suspension feederPBDB, for Crinoidea
Life habit
upper-level epifaunalPBDB, for Crinoidea
Motility
stationary, attachedPBDB, for Crinoidea
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 197 million years on record.

The record covers at least 461.4 Mya to 264.28 Mya. No occurrence read is dated outside 464.3 Mya to 259.857 Mya.

Ordovician — about 5 of 35 occurrencesOrdovicianSilurian — about 15 of 35 occurrencesSilurianDevonian — about 13 of 35 occurrencesDevonianCarboniferous — about 1 of 35 occurrencesCarboniferousPermian — about 1 of 35 occurrencesPermian468–461 Mya — about 1 occurrence461–454 Mya — about 0.9 occurrences454–447 Mya — about 3 occurrences447–440 Mya — about 0.8 occurrences440–433 Mya — about 2 occurrences433–426 Mya — about 10 occurrences426–419 Mya — about 4 occurrences419–412 Mya — about 8 occurrences412–405 Mya — about 1 occurrence405–398 Mya — about 0.5 occurrences398–390 Mya — about 2 occurrences390–383 Mya — about 1 occurrence348–341 Mya — about 0.9 occurrences341–334 Mya — about 0.1 occurrences270–263 Mya — about 0.3 occurrences263–256 Mya — about 0.7 occurrences461.4 Mya264.28 Mya468 Mya256 Mya

35 occurrences of Pentagonocyclicus 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

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

16 formations

Verkhneargskaya — 39.00°N, 69.00°ESaraynin — 61.27°N, 60.17°EJianlin — 18.40°N, 109.25°ETangtou — 32.00°N, 119.00°EKalvitza — 71.00°N, 58.00°EDolbor — 63.00°N, 95.00°EKabanka — 56.00°N, 60.00°EXibiehe — 42.00°N, 110.00°EClifton Down Limestone — 51.18°N, 2.43°WKandle — 59.42°N, 24.75°EKhulmunuur — 46.30°N, 93.90°ESauma — 61.30°N, 60.13°EVizhay — 61.30°N, 60.13°EMoyerokan — 67.31°N, 103.83°ETolo Harbour — 22.45°N, 114.23°EFerradosa — 40.31°N, 8.33°W

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The named rock units Pentagonocyclicus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.

Pentagonocyclicus and its relatives

Silurian

Where Pentagonocyclicus and its relatives were recorded in the Silurian.

Found in the same rock

457 taxa

The Paleobiology Database records 23 sites for Pentagonocyclicus, 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

16 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. 4 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 Pentagonocyclicus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Pentagonocyclicus, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Yeltysheva and Shevchenko 1960