Psammosteus

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

On record

Recorded, not inferred
Sits inside
PsammosteidaePBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 70 million years on record.

The record covers at least 393.47 Mya to 323.4 Mya. No occurrence read is dated outside 410.62 Mya to 298.9 Mya.

Devonian — about 28 of 30 occurrencesDevonianCarboniferous — about 2 of 30 occurrencesCarboniferousPermian — about 0 of 30 occurrences413–409 Mya — about 0.1 occurrences409–405 Mya — about 0.2 occurrences405–401 Mya — about 0.2 occurrences401–397 Mya — about 0.2 occurrences397–393 Mya — about 0.2 occurrences393–390 Mya — about 0.7 occurrences390–386 Mya — about 4 occurrences386–382 Mya — about 7 occurrences382–378 Mya — about 8 occurrences378–374 Mya — about 4 occurrences374–370 Mya — about 3 occurrences370–366 Mya — about 0.3 occurrences366–363 Mya — about 0.3 occurrences363–359 Mya — about 0.3 occurrences324–320 Mya — about 0.3 occurrences320–316 Mya — about 0.3 occurrences316–312 Mya — about 0.3 occurrences312–308 Mya — about 0.3 occurrences308–304 Mya — about 0.3 occurrences304–301 Mya — about 0.3 occurrences301–297 Mya — about 0.1 occurrences393.47 Mya323.4 Mya413 Mya297 Mya

30 occurrences of Psammosteus 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

30 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

Yam-Tesovo — 58.89°N, 30.56°EAmata — 57.06°N, 24.03°EAmata — 56.63°N, 25.46°EBurtnieki — 58.10°N, 25.55°EPļaviņas — 59.89°N, 32.80°EGremyashchij — 79.50°N, 96.00°EMatusevich — 79.50°N, 96.00°EVavilov — 79.50°N, 96.00°EVstrechnaya — 79.50°N, 96.00°EVatutin — 79.50°N, 96.00°ELan' — 52.16°N, 27.30°EZoologdalen/Andersson Land — 73.31°N, 24.33°WPrilovat´ — 57.72°N, 31.58°ETordalen — 78.67°N, 16.22°EDubniki — 59.89°N, 32.80°EAlves Beds — 57.65°N, 3.40°WMalovisherskaya — 58.85°N, 32.23°E

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The named rock units Psammosteus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Psammosteus and its relatives

Devonian

Where Psammosteus and its relatives were recorded in the Devonian.

Found in the same rock

152 taxa

The Paleobiology Database records 27 sites for Psammosteus, 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

15 references

Each of the 30 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. 3 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 Psammosteus 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 Psammosteus, or no answer at all. This entry cannot say which.

No 3D scan of Psammosteus was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itPsammosteidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1844