Aurikirkbya

Aurikirkbya is an extinct genus of ostracod belonging to the suborder Beyrichicopina and family Kirkbyidae. It is found in Pennsylvanian to Triassic beds in North America, east Asia, southwest Asia, and Europe.

Aurikirkbya

I.G. Sohn · Public Domain · 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
KirkbyidaePBDB
Diet
suspension feederPBDB, for Palaeocopida
Life habit
epifaunalPBDB, for Palaeocopida
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At least 49 million years on record.

The record covers at least 303.7 Mya to 254.14 Mya. No occurrence read is dated outside 323.4 Mya to 251.902 Mya.

Carboniferous — about 4 of 44 occurrencesCarboniferousPermian — about 40 of 44 occurrencesPermianEarly Triassic — about 0 of 44 occurrences325–322 Mya — about 0.1 occurrences322–320 Mya — about 0.2 occurrences320–317 Mya — about 0.2 occurrences317–315 Mya — about 0.2 occurrences315–312 Mya — about 0.2 occurrences312–310 Mya — about 0.2 occurrences310–307 Mya — about 0.2 occurrences307–305 Mya — about 0.8 occurrences305–303 Mya — about 0.8 occurrences303–300 Mya — about 0.7 occurrences300–298 Mya — about 2 occurrences298–295 Mya — about 2 occurrences295–293 Mya — about 3 occurrences293–290 Mya — about 4 occurrences290–288 Mya — about 1 occurrence288–285 Mya — about 1 occurrence285–283 Mya — about 1 occurrence283–280 Mya — about 1 occurrence280–278 Mya — about 1 occurrence278–275 Mya — about 1 occurrence275–273 Mya — about 0.5 occurrences265–263 Mya — about 2 occurrences263–260 Mya — about 3 occurrences260–258 Mya — about 2 occurrences258–255 Mya — about 1 occurrence255–253 Mya — about 7 occurrences253–250 Mya — about 6 occurrences303.7 Mya254.14 Mya325 Mya250 Mya

44 occurrences of Aurikirkbya on record, most of them in the Permian. 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

44 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

19 formations

Changxing — 31.08°N, 119.71°EArqov — 30.75°N, 34.67°EArqov — 30.99°N, 35.20°EArqov — 30.98°N, 34.81°EArqov — 31.21°N, 35.19°ERoad Canyon — 30.39°N, 103.14°WNeva — 38.37°N, 96.62°WNeva — 39.18°N, 96.59°WRyozensan Limestone — 35.26°N, 136.36°EIwaizaki — 38.83°N, 141.60°EWinfield — 37.68°N, 97.01°WWinfield — 38.42°N, 96.82°WAkasaka — 35.41°N, 136.57°EWujiaping — 31.69°N, 104.43°EFlorena — 38.37°N, 96.53°WElmdale — 38.37°N, 96.62°WDalong — 22.27°N, 107.69°EGrenzland — 46.58°N, 13.18°EChase — 38.27°N, 96.73°WFort Riley — 38.21°N, 96.92°WWreford — 38.41°N, 96.57°WChandalaz — 43.44°N, 132.41°EStanton — 39.08°N, 94.93°WLongtan — 31.63°N, 117.96°E

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The named rock units Aurikirkbya has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Aurikirkbya and its relatives

Permian

Where Aurikirkbya and its relatives were recorded in the Permian.

Found in the same rock

395 taxa

The Paleobiology Database records 35 sites for Aurikirkbya, 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

17 references

Each of the 44 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. 5 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 Aurikirkbya

Credit
I.G. Sohn
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Aurikirkbya 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 itKirkbyidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sohn 1950