Traquairaspis

Traquairaspis is a genus of extinct heterostracan agnathan fish known from the Silurian and Early Devonian periods. It is predominantly known from Late Silurian fluvial deposits from Wales and England: some species were also found in shallow water marine environment in Canada and North America.

Traquairaspis

Apokryltaros · CC BY-SA 4.0 · via Wikipedia/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
TraquairaspidaePBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 7 million years on record.

The record covers at least 426.7 Mya to 419.62 Mya. No occurrence read is dated outside 432.9 Mya to 399.5 Mya.

Silurian — about 7 of 32 occurrencesSilurianDevonian — about 25 of 32 occurrencesDevonian434–432 Mya — about 0.1 occurrences432–431 Mya — about 0.2 occurrences431–430 Mya — about 0.3 occurrences430–429 Mya — about 0.5 occurrences429–428 Mya — about 0.5 occurrences428–427 Mya — about 0.5 occurrences427–425 Mya — about 0.7 occurrences425–424 Mya — about 0.7 occurrences424–423 Mya — about 0.7 occurrences423–422 Mya — about 0.9 occurrences422–421 Mya — about 1 occurrence421–420 Mya — about 1 occurrence420–419 Mya — about 3 occurrences419–417 Mya — about 3 occurrences417–416 Mya — about 3 occurrences416–415 Mya — about 3 occurrences415–414 Mya — about 3 occurrences414–413 Mya — about 3 occurrences413–412 Mya — about 0.6 occurrences412–410 Mya — about 0.6 occurrences410–409 Mya — about 0.6 occurrences409–408 Mya — about 0.6 occurrences408–407 Mya — about 0.6 occurrences407–406 Mya — about 0.6 occurrences406–405 Mya — about 0.6 occurrences405–403 Mya — about 0.6 occurrences403–402 Mya — about 0.6 occurrences402–401 Mya — about 0.6 occurrences401–400 Mya — about 0.6 occurrences400–399 Mya — about 0.2 occurrences426.7 Mya419.62 Mya433.6 Mya398.8 Mya

32 occurrences of Traquairaspis 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

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

10 formations

Delorme — 62.77°N, 126.50°WDelorme — 63.42°N, 128.00°WDelorme — 63.55°N, 128.65°WDelorme — 63.53°N, 128.70°WFraenkelryggen — 79.83°N, 12.00°EFraenkelryggen — 79.67°N, 12.37°EPeel Sound — 72.23°N, 96.55°WPeel Sound — 73.95°N, 95.23°WSomerset Island — 72.85°N, 93.28°WSomerset Island — 72.87°N, 93.75°WSomerset Island — 73.98°N, 95.28°WSomerset Island — 74.13°N, 94.15°WCape Phillips — 75.13°N, 95.00°WKnoydart — 45.62°N, 61.97°WCowie — 56.95°N, 2.20°WChortkov — 48.63°N, 25.73°EBen Nevis — 79.63°N, 12.29°EDevon Island — 76.57°N, 87.48°W

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

Found in the same rock

172 taxa

The Paleobiology Database records 25 sites for Traquairaspis, 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

9 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 Traquairaspis

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

No 3D scan of Traquairaspis 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itTraquairaspidae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kiaer 1932