Skreiaspis

Skreiaspis

via iDigBio · CC BY-NC-ND · via iDigBio. 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
AgraulidaePBDB
Diet
deposit feederPBDB, for Redlichiida
Life habit
low-level epifaunalPBDB, for Redlichiida
Motility
fast-movingPBDB, for Redlichiida
Vision
well-developedPBDB, for Agraulidae
Environment
marinePBDB, for Trilobita

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 497 Mya.

Cambrian — about 14 of 14 occurrencesCambrian508–508 Mya — about 0.3 occurrences508–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–506 Mya — about 0.5 occurrences506–506 Mya — about 0.6 occurrences506–505 Mya — about 0.6 occurrences505–505 Mya — about 0.6 occurrences505–505 Mya — about 0.6 occurrences505–504 Mya — about 0.6 occurrences504–504 Mya — about 0.6 occurrences504–503 Mya — about 0.6 occurrences503–503 Mya — about 0.6 occurrences503–503 Mya — about 0.7 occurrences503–502 Mya — about 0.7 occurrences502–502 Mya — about 0.7 occurrences502–501 Mya — about 0.7 occurrences501–501 Mya — about 0.7 occurrences501–501 Mya — about 0.7 occurrences501–500 Mya — about 0.5 occurrences500–500 Mya — about 0.5 occurrences500–499 Mya — about 0.4 occurrences499–499 Mya — about 0.3 occurrences499–499 Mya — about 0.3 occurrences499–498 Mya — about 0.3 occurrences498–498 Mya — about 0.3 occurrences498–497 Mya — about 0.3 occurrences497–497 Mya — about 0.2 occurrences504.5 Mya – 503 Mya508.7 Mya496.5 Mya

14 occurrences of Skreiaspis 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

14 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

8 formations

Jince — 49.78°N, 13.97°EJince — 49.00°N, 14.00°ELos Villares — 38.00°N, 4.80°WSkryje — 49.95°N, 13.77°ESenice — 49.88°N, 15.57°EAsbill Pond — 34.00°N, 82.00°WSkryje Shale — 49.97°N, 13.77°EPulgon — 40.38°N, 73.34°ETriebenreuth — 50.17°N, 11.55°E

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

Skreiaspis and its relatives

Cambrian

Where Skreiaspis and its relatives were recorded in the Cambrian.

Found in the same rock

101 taxa

The Paleobiology Database records 13 sites for Skreiaspis, 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

10 references

Each of the 14 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 Skreiaspis

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Skreiaspis 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 itAgraulidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ruzicka 1946