Phialaspis

Phialaspis

Apokryltaros · CC BY-SA 4.0 · 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
TraquairaspidiformesPBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 3 million years on record.

The record covers at least 422.7 Mya to 419.62 Mya. No occurrence read is dated outside 426.7 Mya to 413.02 Mya.

Silurian — about 3 of 12 occurrencesSilurianDevonian — about 9 of 12 occurrencesDevonian427–426 Mya — about 0.1 occurrences426–426 Mya — about 0.1 occurrences426–425 Mya — about 0.1 occurrences425–425 Mya — about 0.1 occurrences425–424 Mya — about 0.1 occurrences424–424 Mya — about 0.1 occurrences424–423 Mya — about 0.1 occurrences423–423 Mya — about 0.1 occurrences423–422 Mya — about 0.3 occurrences422–422 Mya — about 0.3 occurrences422–421 Mya — about 0.3 occurrences421–421 Mya — about 0.3 occurrences421–420 Mya — about 0.3 occurrences420–420 Mya — about 0.3 occurrences420–419 Mya — about 0.8 occurrences419–419 Mya — about 1 occurrence419–418 Mya — about 1 occurrence418–418 Mya — about 1 occurrence418–417 Mya — about 1 occurrence417–417 Mya — about 1 occurrence417–416 Mya — about 0.5 occurrences416–416 Mya — about 0.2 occurrences416–415 Mya — about 0.2 occurrences415–415 Mya — about 0.2 occurrences415–414 Mya — about 0.2 occurrences414–414 Mya — about 0.2 occurrences414–413 Mya — about 0.2 occurrences413–413 Mya — about 0.2 occurrences422.7 Mya419.62 Mya427.2 Mya412.5 Mya

12 occurrences of Phialaspis on record. 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

12 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

Psammosteus Limestone — 52.53°N, 2.61°WPsammosteus Limestone — 52.54°N, 2.52°WPsammosteus Limestone — 52.09°N, 2.87°WPsammosteus Limestone — 51.94°N, 3.40°WPod''emnaya — 79.50°N, 96.00°ESt. Maughans — 52.00°N, 2.00°WFreshwater West — 52.48°N, 2.64°WLower Red Downton Sandstone — 52.06°N, 3.02°WRaglan Marl — 51.71°N, 2.51°W

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The named rock units Phialaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Found in the same rock

69 taxa

The Paleobiology Database records 10 sites for Phialaspis, 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

4 references

Each of the 12 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 content2

Picture of Phialaspis

Credit
Apokryltaros
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itTraquairaspidiformes through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Wills 1935