Diplacanthiformes

Diplacanthiformes is an order of "acanthodian" stem-chondrichthyans which lived during the Devonian Period.

Diplacanthiformes

Funyu123 · 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
AcanthodiiPBDB
Diet
carnivorePBDB, for Acanthodii
Life habit
nektonicPBDB, for Acanthodii
Motility
actively mobilePBDB, for Acanthodii

Time the record covers

At least 47 million years on record.

The record covers at least 413.02 Mya to 365.2 Mya. No occurrence read is dated outside 419.62 Mya to 358.86 Mya.

Silurian — about 0 of 65 occurrencesDevonian — about 65 of 65 occurrencesDevonianCarboniferous — about 0 of 65 occurrences421–419 Mya — about 0.1 occurrences419–417 Mya — about 0.3 occurrences417–415 Mya — about 0.3 occurrences415–412 Mya — about 0.2 occurrences412–410 Mya — about 0.2 occurrences410–408 Mya — about 1 occurrence408–406 Mya — about 1 occurrence406–404 Mya — about 1 occurrence404–402 Mya — about 1 occurrence402–400 Mya — about 1 occurrence400–398 Mya — about 3 occurrences398–396 Mya — about 3 occurrences396–393 Mya — about 3 occurrences393–391 Mya — about 6 occurrences391–389 Mya — about 6 occurrences389–387 Mya — about 7 occurrences387–385 Mya — about 8 occurrences385–383 Mya — about 5 occurrences383–381 Mya — about 4 occurrences381–379 Mya — about 3 occurrences379–377 Mya — about 0.6 occurrences377–374 Mya — about 0.6 occurrences374–372 Mya — about 0.6 occurrences372–370 Mya — about 1.0 occurrences370–368 Mya — about 1 occurrence368–366 Mya — about 2 occurrences366–364 Mya — about 2 occurrences364–362 Mya — about 2 occurrences362–360 Mya — about 2 occurrences360–358 Mya — about 0.7 occurrences413.02 Mya365.2 Mya421 Mya358 Mya

65 occurrences of Diplacanthiformes 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

65 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

26 formations

Lybster Flagstone — 57.64°N, 3.03°WLybster Flagstone — 58.47°N, 3.46°WLybster Flagstone — 57.68°N, 2.34°WLybster Flagstone — 57.83°N, 4.18°WLybster Flagstone — 57.68°N, 4.03°WPolotsk — 52.14°N, 27.28°EPolotsk — 51.88°N, 26.85°EPolotsk — 52.88°N, 26.86°EWater Canyon — 41.62°N, 111.66°WWater Canyon — 41.77°N, 111.75°WWater Canyon — 41.84°N, 111.59°WWater Canyon — 41.57°N, 111.97°WWater Canyon — 41.98°N, 111.09°WBurtnieki — 58.10°N, 25.55°EKetleri — 56.70°N, 22.13°EKetleri — 56.59°N, 22.01°EEscuminac — 48.11°N, 66.40°WKovanshchina — 54.13°N, 36.56°EAruküla — 59.37°N, 25.08°EWitpoort — 33.32°S, 26.54°EAztec Siltstone — 77.88°S, 159.61°EAztec Siltstone — 78.54°S, 158.43°ELepel — 53.32°N, 30.37°EBeartooth Butte — 44.95°N, 109.62°WCuche — 6.58°N, 75.67°WGauja — 58.01°N, 25.38°ELan' — 52.16°N, 27.30°EDankov-Lebedyan Beds — 52.97°N, 36.07°ERēzekne — 56.51°N, 27.33°ELost Burro — 36.30°N, 116.96°WBindaree — 37.17°S, 146.65°EUpper Stromness Flagstones — 59.08°N, 3.32°WSevy Dolomite — 39.62°N, 114.89°WBoyd Volcanic Complex — 36.94°S, 149.82°ERoad River — 63.33°N, 126.81°WTērvete — 56.46°N, 23.25°E

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The named rock units Diplacanthiformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 further formations hold fewer occurrences each and are not listed. 10 occurrences have no formation on record, which is common for older literature.

Diplacanthiformes and its relatives

Devonian

Where Diplacanthiformes and its relatives were recorded in the Devonian.

Found in the same rock

475 taxa

The Paleobiology Database records 46 sites for Diplacanthiformes, 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

26 references

Each of the 65 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. 14 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 Diplacanthiformes

Credit
Funyu123
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Diplacanthiformes 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 itAcanthodii through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Berg 1940