Xiphosurida

Xiphosurida

Hans Hillewaert · CC BY-SA 3.0 · via Wikidata/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
XiphosuraPBDB
Diet
carnivorePBDB, for Xiphosura
Life habit
nektobenthicPBDB, for Xiphosura
Motility
actively mobilePBDB, for Xiphosura
Vision
limitedPBDB

Time the record covers

At least 468 million years on record.

The record covers at least 506.5 Mya to 37.71 Mya. No occurrence read is dated outside 538.8 Mya to 33.9 Mya.

Cambrian — about 1 of 233 occurrencesCambrianOrdovician — about 4 of 233 occurrencesOrdovicianSilurian — about 7 of 233 occurrencesDevonian — about 3 of 233 occurrencesDevonianCarboniferous — about 144 of 233 occurrencesCarboniferousPermian — about 14 of 233 occurrencesPermianEarly Triassic — about 11 of 233 occurrencesMiddle Triassic — about 20 of 233 occurrencesLate Triassic — about 2 of 233 occurrencesEarly Jurassic — about 3 of 233 occurrencesMiddle Jurassic — about 1 of 233 occurrencesLate Jurassic — about 14 of 233 occurrencesEarly Cretaceous — about 2 of 233 occurrencesLate Cretaceous — about 6 of 233 occurrencesPaleocene — about 0 of 233 occurrencesEocene — about 1 of 233 occurrencesOligocene — about 0 of 233 occurrences549–531 Mya — about 0.2 occurrences531–514 Mya — about 0.5 occurrences514–496 Mya — about 0.2 occurrences479–461 Mya — about 1 occurrence461–444 Mya — about 3 occurrences444–426 Mya — about 5 occurrences426–409 Mya — about 2 occurrences409–391 Mya — about 0.8 occurrences374–356 Mya — about 2 occurrences356–339 Mya — about 5 occurrences339–321 Mya — about 8 occurrences321–304 Mya — about 117 occurrences304–286 Mya — about 19 occurrences286–269 Mya — about 8 occurrences269–251 Mya — about 1 occurrence251–234 Mya — about 30 occurrences234–216 Mya — about 0.5 occurrences216–199 Mya — about 4 occurrences199–181 Mya — about 0.7 occurrences181–164 Mya — about 1 occurrence164–146 Mya — about 10 occurrences146–129 Mya — about 4 occurrences129–111 Mya — about 2 occurrences111–94 Mya — about 4 occurrences94–76 Mya — about 0.6 occurrences76–59 Mya — about 1 occurrence41–24 Mya — about 1 occurrence506.5 Mya37.71 Mya549 Mya24 Mya

233 occurrences of Xiphosurida on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

233 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

90 formations

Carbondale — 41.34°N, 88.39°WCarbondale — 41.30°N, 88.15°WCarbondale — 41.22°N, 88.21°WSolnhofen — 48.91°N, 11.14°ESolnhofen — 49.00°N, 11.70°EGrès à Voltzia — 48.91°N, 7.20°EGrès à Voltzia — 48.82°N, 7.24°EGrès à Voltzia — 48.69°N, 7.38°EGrès à Voltzia — 48.78°N, 7.25°EGrès à Voltzia — 48.64°N, 7.45°EGrès à Voltzia — 48.53°N, 7.43°EGrès à Voltzia — 48.64°N, 7.44°EWellington — 38.64°N, 97.21°WWellington — 36.33°N, 97.28°WWellington — 38.13°N, 97.21°WWettin — 51.63°N, 11.95°EPennant Sandstone — 51.75°N, 3.40°WPennant Sandstone — 51.65°N, 3.24°WHeath — 46.95°N, 108.96°WMuschelkalk — 41.27°N, 1.12°EPennine Lower Coal Measures — 53.53°N, 2.51°WCoolbaun Coal — 52.80°N, 7.04°WAlmaznaya — 47.93°N, 38.20°EAlmaznaya — 48.28°N, 39.90°ESundvollen — 60.17°N, 10.30°ESundvollen — 59.92°N, 10.75°EBertie — 43.45°N, 74.95°WBertie — 42.88°N, 78.88°WWood Siding — 39.06°N, 96.05°WFarrington — 51.28°N, 2.46°WFarrington — 51.30°N, 2.43°WSolling — 51.46°N, 10.03°ESmolyaninovskaya — 48.62°N, 38.00°ESmolyaninovskaya — 48.37°N, 39.05°EBelaya Kalitva — 48.31°N, 40.25°EPennant — 51.71°N, 3.91°WParrsboro — 45.43°N, 63.03°WPhilippovian — 57.44°N, 57.01°EPhilippovian — 57.41°N, 57.06°EKarvina — 49.80°N, 18.47°ELlewellyn — 40.72°N, 76.23°WLlewellyn — 41.25°N, 75.84°WRybinsk — 58.02°N, 39.04°E

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The named rock units Xiphosurida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 66 further formations hold fewer occurrences each and are not listed. 86 occurrences have no formation on record, which is common for older literature.

Xiphosurida and its relatives

Carboniferous

Where Xiphosurida and its relatives were recorded in the Carboniferous.

Found in the same rock

1,473 taxa

The Paleobiology Database records 197 sites for Xiphosurida, 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

120 references

Each of the 233 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. 108 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 Xiphosurida

Credit
Hans Hillewaert
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Xiphosurida 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 itXiphosura through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1802