Psammolepis

Psammolepis

Tuuling · CC BY-SA 3.0 · via Wikidata/Commons. 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
PsammosteidaePBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 11 million years on record.

The record covers at least 393.47 Mya to 382.31 Mya. No occurrence read is dated outside 399.5 Mya to 372.15 Mya.

Devonian — about 20 of 20 occurrencesDevonian400–399 Mya — about 0.2 occurrences399–398 Mya — about 0.5 occurrences398–397 Mya — about 0.5 occurrences397–396 Mya — about 0.5 occurrences396–395 Mya — about 0.5 occurrences395–394 Mya — about 0.5 occurrences394–393 Mya — about 0.5 occurrences393–392 Mya — about 0.6 occurrences392–392 Mya — about 0.6 occurrences392–391 Mya — about 0.6 occurrences391–390 Mya — about 0.6 occurrences390–389 Mya — about 0.6 occurrences389–388 Mya — about 0.8 occurrences388–387 Mya — about 1 occurrence387–386 Mya — about 1 occurrence386–385 Mya — about 0.9 occurrences385–384 Mya — about 0.9 occurrences384–383 Mya — about 3 occurrences383–382 Mya — about 4 occurrences382–381 Mya — about 0.4 occurrences381–380 Mya — about 0.4 occurrences380–379 Mya — about 0.4 occurrences379–378 Mya — about 0.1 occurrences378–377 Mya — about 0.1 occurrences377–376 Mya — about 0.1 occurrences376–375 Mya — about 0.1 occurrences375–374 Mya — about 0.1 occurrences374–373 Mya — about 0.1 occurrences373–373 Mya — about 0.1 occurrences373–372 Mya — about 0.0 occurrences393.47 Mya382.31 Mya400 Mya371.6 Mya

20 occurrences of Psammolepis 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

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

10 formations

Gauja — 58.01°N, 25.38°EBurtnieki — 58.10°N, 25.55°ELepel — 53.07°N, 28.70°ELepel — 53.32°N, 30.37°EGremyashchij — 79.50°N, 96.00°EVstrechnaya — 79.50°N, 96.00°EVatutin — 79.50°N, 96.00°EPärnu — 58.39°N, 24.50°ETordalen — 78.67°N, 16.22°ENathorst Fjord — 71.63°N, 22.33°WYam-Tesovo — 58.89°N, 30.56°E

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The named rock units Psammolepis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Psammolepis and its relatives

Devonian

Where Psammolepis and its relatives were recorded in the Devonian.

Found in the same rock

134 taxa

The Paleobiology Database records 18 sites for Psammolepis, 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

11 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 content1

Picture of Psammolepis

Credit
Tuuling
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Psammolepis 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 itPsammosteidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1843