Xystridura

Xystridura is a genus of redlichiid trilobite described originally from the Middle Cambrian (Miaolingian) strata of Queensland, Australia. The genus ranges upwards from Ordian into Florian Stages in terms of Australian Cambrian stratigraphic nomenclature.

Xystridura

Micktherocktapper · 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
XystriduridaePBDB
Diet
carnivorePBDB, for Paradoxidoidea
Life habit
low-level epifaunalPBDB, for Redlichiida
Motility
fast-movingPBDB, for Redlichiida
Vision
well-developedPBDB, for Xystriduridae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 1.5 million years on record.

The record covers at least 508 Mya to 506.5 Mya. No occurrence read is dated outside 511.2 Mya to 497 Mya.

Cambrian — about 9 of 9 occurrencesCambrian512–511 Mya — about 0.0 occurrences511–511 Mya — about 0.2 occurrences511–510 Mya — about 0.2 occurrences510–510 Mya — about 0.2 occurrences510–509 Mya — about 0.2 occurrences509–509 Mya — about 0.2 occurrences509–508 Mya — about 0.2 occurrences508–508 Mya — about 0.4 occurrences508–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–506 Mya — about 0.6 occurrences506–506 Mya — about 0.7 occurrences506–505 Mya — about 0.7 occurrences505–505 Mya — about 0.7 occurrences505–504 Mya — about 0.4 occurrences504–504 Mya — about 0.3 occurrences504–503 Mya — about 0.3 occurrences503–503 Mya — about 0.3 occurrences503–502 Mya — about 0.3 occurrences502–502 Mya — about 0.3 occurrences502–501 Mya — about 0.3 occurrences501–501 Mya — about 0.3 occurrences501–500 Mya — about 0.3 occurrences500–500 Mya — about 0.3 occurrences500–499 Mya — about 0.3 occurrences499–499 Mya — about 0.3 occurrences499–498 Mya — about 0.3 occurrences498–498 Mya — about 0.3 occurrences498–497 Mya — about 0.3 occurrences497–497 Mya — about 0.0 occurrences508 Mya – 506.5 Mya511.7 Mya496.5 Mya

9 occurrences of Xystridura on record, most of them in the Cambrian. 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

9 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

5 formations

Coonigan — 31.17°S, 141.32°ECoonigan — 31.31°S, 142.18°EBaguamiao — 32.22°N, 108.42°EMount Spann — 82.00°S, 41.33°WTindall Limestone — 13.82°S, 131.35°EElcho Island — 12.00°S, 136.00°E

Loading coastlines…

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

Xystridura and its relatives

Cambrian

Where Xystridura and its relatives were recorded in the Cambrian.

Found in the same rock

74 taxa

The Paleobiology Database records 5 sites for Xystridura, 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 9 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 Xystridura

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

No 3D scan of Xystridura 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 itXystriduridae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Whitehouse 1936