Vernonaspis

Vernonaspis is an extinct genus of jawless fish that lived in the Silurian in the Paleozoic approximately 419 million years ago, in what is now Canada and the Northeastern United States.

Vernonaspis

Bloopityboop · 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
CyathaspididaePBDB
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 443.1 Mya to 399.5 Mya.

Ordovician — about 0 of 14 occurrencesSilurian — about 13 of 14 occurrencesSilurianDevonian — about 1 of 14 occurrencesDevonian444–442 Mya — about 0.1 occurrences442–441 Mya — about 0.3 occurrences441–439 Mya — about 0.3 occurrences439–438 Mya — about 0.3 occurrences438–436 Mya — about 0.3 occurrences436–435 Mya — about 0.3 occurrences435–433 Mya — about 0.3 occurrences433–432 Mya — about 0.3 occurrences432–430 Mya — about 0.3 occurrences430–429 Mya — about 0.7 occurrences429–427 Mya — about 0.7 occurrences427–426 Mya — about 1 occurrence426–424 Mya — about 2 occurrences424–423 Mya — about 2 occurrences423–421 Mya — about 2 occurrences421–420 Mya — about 2 occurrences420–418 Mya — about 0.3 occurrences418–417 Mya — about 0.1 occurrences417–415 Mya — about 0.1 occurrences415–414 Mya — about 0.1 occurrences414–412 Mya — about 0.1 occurrences412–411 Mya — about 0.1 occurrences411–409 Mya — about 0.1 occurrences409–408 Mya — about 0.1 occurrences408–406 Mya — about 0.1 occurrences406–405 Mya — about 0.1 occurrences405–403 Mya — about 0.1 occurrences403–402 Mya — about 0.1 occurrences402–400 Mya — about 0.1 occurrences400–399 Mya — about 0.0 occurrences426.7 Mya419.62 Mya444 Mya398.6 Mya

14 occurrences of Vernonaspis on record, most of them in the Silurian. 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

6 formations

Delorme — 63.42°N, 128.00°WDelorme — 63.53°N, 128.70°WShawangunk — 40.98°N, 75.14°WShawangunk — 41.47°N, 74.54°WVernon Shale — 43.08°N, 77.52°WCape Phillips — 75.13°N, 95.00°WBloomsburg — 39.91°N, 77.50°WVernon — 43.04°N, 75.59°W

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The named rock units Vernonaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Vernonaspis and its relatives

Silurian

Where Vernonaspis and its relatives were recorded in the Silurian.

Found in the same rock

143 taxa

The Paleobiology Database records 10 sites for Vernonaspis, 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

6 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 Vernonaspis

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itCyathaspididae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Flower and Smith 1952