Ptychagnostus spinosus

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

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 most 2.5 million years on record.

Every occurrence read is dated to somewhere between 503 Mya and 500.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 4 of 4 occurrencesCambrian503–503 Mya — about 0.1 occurrences503–503 Mya — about 0.2 occurrences503–503 Mya — about 0.2 occurrences503–503 Mya — about 0.2 occurrences503–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–502 Mya — about 0.2 occurrences502–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–501 Mya — about 0.2 occurrences501–500 Mya — about 0.1 occurrences503.5 Mya500 Mya

4 occurrences of Ptychagnostus spinosus 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

4 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

1 formation

Aktas — 43.53°N, 69.95°E

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

Ptychagnostus spinosus and its relatives

Cambrian

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

Found in the same rock

33 taxa

The Paleobiology Database records 2 sites for Ptychagnostus spinosus, 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

1 reference

Each of the 4 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Ptychagnostus spinosus 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 Ptychagnostus spinosus, 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 itPtychagnostus through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ergaliev 1980