Psammolepis
Searched as Psammolepis undulata. The Paleobiology Database treats Psammolepis as the accepted name.

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 most 5.7 million years on record.
The one occurrence read is dated to somewhere between 387.95 Mya and 382.31 Mya, which is a dating window rather than a span.
1 occurrence 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
1 occurrences- Devonian100%
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
- Tordalen Formation · Mimerdalen Group1
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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.
Psammolepis and its relatives
DevonianWhere Psammolepis and its relatives were recorded in the Devonian.
Found in the same rock
134 taxa- Acanthodes6 sites
- Cheiracanthus brevicostatus5 sites
- Glyptolepis5 sites
- Psammosteus5 sites
- Asterolepis4 sites
- Psammosteidae4 sites
- Sarcopterygii4 sites
- Acanthodii3 sites
- Actinolepis zaikai3 sites
- Actinopterygii3 sites
- Antiarchi3 sites
- Cheiracanthus3 sites
- Cheiracanthus latus3 sites
- Ganosteus3 sites
- Haplacanthus marginalis3 sites
- Heterostraci3 sites
- Moythomasia lebedevi3 sites
- Orvikuina vardiaensis3 sites
- Osteolepidae3 sites
- Pycnosteus3 sites
- Schizosteus heterolepis3 sites
- Tartuosteus3 sites
- Byssacanthus2 sites
- Cheirolepis gaugeri2 sites
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
1 referenceEach of the 1 occurrence 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 content1

Picture of Psammolepis
- Source
- Wikidata/Commons
- Credit
- Tuuling
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Psammolepis 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 1843