Ptychodictyon

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

On record

Recorded, not inferred
Sits inside
AcanthodiiPBDB
Diet
carnivorePBDB, for Acanthodii
Life habit
nektonicPBDB, for Acanthodii
Motility
actively mobilePBDB, for Acanthodii

Time the record covers

At least 7.5 million years on record.

The record covers at least 393.47 Mya to 385.9 Mya. No occurrence read is dated outside 410.62 Mya to 382.31 Mya.

Devonian — about 16 of 16 occurrencesDevonian411–410 Mya — about 0.1 occurrences410–409 Mya — about 0.3 occurrences409–408 Mya — about 0.3 occurrences408–407 Mya — about 0.3 occurrences407–406 Mya — about 0.3 occurrences406–405 Mya — about 0.3 occurrences405–404 Mya — about 0.3 occurrences404–403 Mya — about 0.3 occurrences403–402 Mya — about 0.3 occurrences402–401 Mya — about 0.3 occurrences401–400 Mya — about 0.3 occurrences400–399 Mya — about 0.4 occurrences399–398 Mya — about 0.6 occurrences398–397 Mya — about 0.6 occurrences397–396 Mya — about 0.6 occurrences396–395 Mya — about 0.6 occurrences395–395 Mya — about 0.6 occurrences395–394 Mya — about 0.6 occurrences394–393 Mya — about 0.4 occurrences393–392 Mya — about 0.4 occurrences392–391 Mya — about 0.4 occurrences391–390 Mya — about 0.4 occurrences390–389 Mya — about 0.4 occurrences389–388 Mya — about 1.0 occurrences388–387 Mya — about 2 occurrences387–386 Mya — about 2 occurrences386–385 Mya — about 0.6 occurrences385–384 Mya — about 0.6 occurrences384–383 Mya — about 0.3 occurrences383–382 Mya — about 0.1 occurrences393.47 Mya385.9 Mya411.2 Mya381.7 Mya

16 occurrences of Ptychodictyon on record, most of them in the Devonian. 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

16 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

6 formations

Water Canyon — 41.62°N, 111.66°WWater Canyon — 41.77°N, 111.75°WWater Canyon — 41.84°N, 111.59°WWater Canyon — 41.98°N, 111.09°WPolotsk — 52.14°N, 27.28°EPolotsk — 51.88°N, 26.85°EPolotsk — 52.88°N, 26.86°ENarva — 59.38°N, 28.19°EBurtnieki — 58.10°N, 25.55°ERēzekne — 56.51°N, 27.33°ESevy Dolomite — 39.62°N, 114.89°W

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The named rock units Ptychodictyon 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.

Ptychodictyon and its relatives

Devonian

Where Ptychodictyon and its relatives were recorded in the Devonian.

Found in the same rock

121 taxa

The Paleobiology Database records 15 sites for Ptychodictyon, 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

6 references

Each of the 16 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 Ptychodictyon 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 Ptychodictyon, or no answer at all. This entry cannot say which.

No 3D scan of Ptychodictyon 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 itAcanthodii through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gross 1973