Ptychagnostus punctuosus

Ptychagnostus punctuosus

via GBIF · CC BY-NC 4.0 · via GBIF. 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
PtychagnostusPBDB
Diet
suspension feederPBDB, for Ptychagnostus
Life habit
nektonicPBDB, for Ptychagnostus
Motility
actively mobilePBDB, for Ptychagnostus
Vision
blindPBDB, for Ptychagnostidae

Time the record covers

At least 1.5 million years on record.

The record covers at least 504.5 Mya to 503 Mya. No occurrence read is dated outside 508.2 Mya to 497 Mya.

Cambrian — about 29 of 29 occurrencesCambrian508–508 Mya — about 0.1 occurrences508–507 Mya — about 0.1 occurrences507–507 Mya — about 0.1 occurrences507–507 Mya — about 0.1 occurrences507–506 Mya — about 0.1 occurrences506–506 Mya — about 0.1 occurrences506–505 Mya — about 0.1 occurrences505–505 Mya — about 0.2 occurrences505–505 Mya — about 0.3 occurrences505–504 Mya — about 1.0 occurrences504–504 Mya — about 1 occurrence504–503 Mya — about 1 occurrence503–503 Mya — about 1 occurrence503–503 Mya — about 3 occurrences503–502 Mya — about 3 occurrences502–502 Mya — about 3 occurrences502–501 Mya — about 3 occurrences501–501 Mya — about 3 occurrences501–501 Mya — about 3 occurrences501–500 Mya — about 1 occurrence500–500 Mya — about 1 occurrence500–499 Mya — about 0.8 occurrences499–499 Mya — about 0.4 occurrences499–499 Mya — about 0.4 occurrences499–498 Mya — about 0.4 occurrences498–498 Mya — about 0.4 occurrences498–497 Mya — about 0.4 occurrences497–497 Mya — about 0.3 occurrences504.5 Mya – 503 Mya508.7 Mya496.5 Mya

29 occurrences of Ptychagnostus punctuosus 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

29 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

15 formations

Huaqiao — 28.39°N, 109.53°EHuaqiao — 28.72°N, 109.97°EAktas — 43.53°N, 69.95°ELower Alum Shale — 55.00°N, 15.00°EV-Creek Limestone — 20.25°S, 138.63°EV-Creek Limestone — 19.79°S, 138.92°EMarjum — 39.00°N, 113.00°WMarjum — 39.27°N, 113.31°WMenevia — 51.87°N, 5.22°WCurrant Bush — 19.54°S, 138.86°ECurrant Bush — 19.99°S, 138.90°EHatch Hill — 42.31°N, 73.77°WSpurs — 71.55°S, 165.30°EForsemölla Limestone — 59.77°N, 10.48°EArthur Creek — 22.83°S, 137.00°EQuita Creek — 21.93°S, 139.13°EInca — 20.03°S, 138.78°EMarjum Limestone — 39.17°N, 113.42°WAlum Shale — 55.72°N, 13.23°E

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The named rock units Ptychagnostus punctuosus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Ptychagnostus punctuosus and its relatives

Cambrian

Where Ptychagnostus punctuosus and its relatives were recorded in the Cambrian.

Found in the same rock

187 taxa

The Paleobiology Database records 21 sites for Ptychagnostus punctuosus, 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

14 references

Each of the 29 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. 2 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

Picture of Ptychagnostus punctuosus

Source
GBIF
Credit
via GBIF
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

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 itPtychagnostus through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Angelin 1851)