Cyathaspidiformes

Cyathaspidiformes is an extinct order of heterostracan vertebrates known from extensive fossil remains primarily from Silurian to Early Devonian strata of Europe, and North America, and from Early Devonian marine strata of Siberia.

Cyathaspidiformes

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
HeterostraciPBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 33 million years on record.

The record covers at least 432.9 Mya to 399.5 Mya. No occurrence read is dated outside 443.1 Mya to 387.95 Mya.

Ordovician — about 0 of 219 occurrencesSilurian — about 68 of 219 occurrencesSilurianDevonian — about 151 of 219 occurrencesDevonian444–442 Mya — about 0.4 occurrences442–440 Mya — about 0.9 occurrences440–438 Mya — about 0.9 occurrences438–437 Mya — about 0.9 occurrences437–435 Mya — about 0.9 occurrences435–433 Mya — about 1.0 occurrences433–431 Mya — about 2 occurrences431–429 Mya — about 2 occurrences429–427 Mya — about 3 occurrences427–425 Mya — about 10 occurrences425–423 Mya — about 13 occurrences423–421 Mya — about 17 occurrences421–419 Mya — about 22 occurrences419–417 Mya — about 41 occurrences417–416 Mya — about 37 occurrences416–414 Mya — about 35 occurrences414–412 Mya — about 13 occurrences412–410 Mya — about 3 occurrences410–408 Mya — about 2 occurrences408–406 Mya — about 2 occurrences406–404 Mya — about 2 occurrences404–402 Mya — about 2 occurrences402–400 Mya — about 2 occurrences400–398 Mya — about 2 occurrences398–396 Mya — about 2 occurrences396–394 Mya — about 2 occurrences394–393 Mya — about 1 occurrence393–391 Mya — about 0.1 occurrences391–389 Mya — about 0.1 occurrences389–387 Mya — about 0.0 occurrences432.9 Mya399.5 Mya444 Mya387 Mya

219 occurrences of Cyathaspidiformes on record, most of them in the Devonian. 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

219 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

46 formations

Delorme — 62.77°N, 126.50°WDelorme — 63.17°N, 127.88°WDelorme — 62.55°N, 127.75°WDelorme — 63.42°N, 128.00°WDelorme — 63.53°N, 128.70°WDelorme — 61.71°N, 124.98°WDelorme — 63.23°N, 128.01°WKureika — 60.34°N, 107.02°EKureika — 66.51°N, 87.24°EKureika — 66.94°N, 88.33°EKureika — 68.03°N, 88.63°EKureika — 69.39°N, 88.21°EFraenkelryggen — 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°WPeel Sound — 72.83°N, 93.70°WBen Nevis — 79.63°N, 12.29°ESomerset Island — 74.13°N, 94.15°WSomerset Island — 72.85°N, 93.28°WSomerset Island — 73.98°N, 95.28°WSomerset Island — 71.49°N, 93.46°WSomerset Island — 74.02°N, 94.58°WPod''emnaya — 79.50°N, 96.00°EUryum — 73.52°N, 91.30°ELost Burro — 36.30°N, 116.96°WRead Bay — 75.00°N, 95.00°WRead Bay — 74.84°N, 93.51°WSevy Dolomite — 39.62°N, 114.89°WSevy Dolomite — 38.69°N, 112.56°WVernon Shale — 43.08°N, 77.52°WTyver — 48.98°N, 25.71°ETyver — 48.64°N, 25.73°ECape Phillips — 75.13°N, 95.00°WCape Phillips — 75.87°N, 94.58°WShawangunk — 40.98°N, 75.14°WShawangunk — 41.47°N, 74.54°WLievin — 50.42°N, 2.77°EUst'-Spokojnaya — 79.50°N, 96.00°EKrasnaya Bukhta — 79.50°N, 96.00°ESpokojnaya — 79.50°N, 96.00°ECunningham Creek — 45.38°N, 66.32°WDevon Island — 76.57°N, 87.48°WPsammosteus Limestone — 52.53°N, 2.48°WPsammosteus Limestone — 52.53°N, 2.61°WToraveiskaya — 65.97°N, 56.94°EDniester — 48.86°N, 25.59°EDniester — 48.77°N, 25.61°E

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The named rock units Cyathaspidiformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 further formations hold fewer occurrences each and are not listed. 20 occurrences have no formation on record, which is common for older literature.

Cyathaspidiformes and its relatives

Devonian

Where Cyathaspidiformes and its relatives were recorded in the Devonian.

Found in the same rock

542 taxa

The Paleobiology Database records 98 sites for Cyathaspidiformes, 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

45 references

Each of the 219 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. 33 further references are not listed. 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 Cyathaspidiformes

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

No 3D scan of Cyathaspidiformes 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 itHeterostraci through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Kaier 1930)