Ptychagnostus seminula

No picture of Ptychagnostus seminula 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 seminula, 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 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 495.9 Mya.

Cambrian — about 20 of 20 occurrencesCambrian508–508 Mya — about 0.7 occurrences508–507 Mya — about 0.8 occurrences507–507 Mya — about 0.8 occurrences507–506 Mya — about 0.9 occurrences506–506 Mya — about 1 occurrence506–506 Mya — about 1 occurrence506–505 Mya — about 1 occurrence505–505 Mya — about 1 occurrence505–504 Mya — about 0.9 occurrences504–504 Mya — about 0.5 occurrences504–503 Mya — about 0.5 occurrences503–503 Mya — about 0.6 occurrences503–502 Mya — about 1 occurrence502–502 Mya — about 1 occurrence502–502 Mya — about 1 occurrence502–501 Mya — about 1 occurrence501–501 Mya — about 1 occurrence501–500 Mya — about 0.8 occurrences500–500 Mya — about 0.5 occurrences500–499 Mya — about 0.5 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 0.2 occurrences497–496 Mya — about 0.0 occurrences496–496 Mya — about 0.0 occurrences504.5 Mya – 503 Mya508.7 Mya495.4 Mya

20 occurrences of Ptychagnostus seminula 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

20 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

9 formations

Shallow Bay — 49.83°N, 57.87°WShallow Bay — 49.25°N, 65.57°WWheeler — 39.22°N, 113.40°WWheeler — 39.50°N, 112.98°WBlacksmith — 41.30°N, 111.72°WBlacksmith — 41.43°N, 111.94°WV-Creek Limestone — 20.25°S, 138.63°EV-Creek Limestone — 19.67°S, 138.76°EGeddes Limestone — 39.50°N, 115.98°WSecret Canyon — 39.40°N, 115.95°WCurrant Bush — 19.99°S, 138.90°EAlum Shale — 58.76°N, 15.52°EHenson Gletscher — 82.17°N, 40.40°W

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

Ptychagnostus seminula and its relatives

Cambrian

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

Found in the same rock

82 taxa

The Paleobiology Database records 16 sites for Ptychagnostus seminula, 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 20 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 Ptychagnostus seminula 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 seminula, or no answer at all. This entry cannot say which.

No 3D scan of Ptychagnostus seminula was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itPtychagnostus through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Whitehouse 1939)