Parkaspis

Parkaspis

via iDigBio · 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
ZacanthoididaePBDB
Diet
carnivorePBDB, for Corynexochida
Life habit
nektobenthicPBDB, for Corynexochida
Motility
actively mobilePBDB, for Corynexochida
Vision
well-developedPBDB, for Zacanthoididae
Environment
marinePBDB, for Trilobita

Time the record covers

At most 13 million years on record.

Every occurrence read is dated to somewhere between 509.7 Mya and 497 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 32 of 32 occurrencesCambrian510–509 Mya — about 2 occurrences509–509 Mya — about 2 occurrences509–508 Mya — about 2 occurrences508–508 Mya — about 3 occurrences508–507 Mya — about 3 occurrences507–507 Mya — about 3 occurrences507–507 Mya — about 3 occurrences507–506 Mya — about 3 occurrences506–506 Mya — about 3 occurrences506–505 Mya — about 3 occurrences505–505 Mya — about 2 occurrences505–504 Mya — about 0.8 occurrences504–504 Mya — about 0.1 occurrences504–503 Mya — about 0.1 occurrences503–503 Mya — about 0.1 occurrences503–502 Mya — about 0.1 occurrences502–502 Mya — about 0.1 occurrences502–502 Mya — about 0.1 occurrences502–501 Mya — about 0.1 occurrences501–501 Mya — about 0.1 occurrences501–500 Mya — about 0.1 occurrences500–500 Mya — about 0.1 occurrences500–499 Mya — about 0.1 occurrences499–499 Mya — about 0.1 occurrences499–498 Mya — about 0.1 occurrences498–498 Mya — about 0.1 occurrences498–497 Mya — about 0.1 occurrences497–497 Mya — about 0.1 occurrences510.2 Mya496.5 Mya

32 occurrences of Parkaspis 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

32 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

Shallow Bay — 49.25°N, 65.57°WTrailer — 39.88°N, 113.05°WPole Canyon — 38.83°N, 114.33°WStephen — 51.40°N, 116.48°WSwasey Limestone — 39.54°N, 112.92°WBurgess Shale — 51.03°N, 115.83°W

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

Parkaspis and its relatives

Cambrian

Where Parkaspis and its relatives were recorded in the Cambrian.

Found in the same rock

70 taxa

The Paleobiology Database records 21 sites for Parkaspis, 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

5 references

Each of the 32 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 Parkaspis

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Parkaspis 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 itZacanthoididae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rasetti 1951