Kirkbyidae

Kirkbya Jones, 1859, a relative of Kirkbyidae — not Kirkbyidae itself

Not Kirkbyidae. This is Kirkbya Jones, 1859, a relative — both are Kirkbyidae.

Naturalis Biodiversity Center · CC0 · via GBIF. 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
KirkbyoideaPBDB
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 121 million years on record.

The record covers at least 358.86 Mya to 237 Mya. No occurrence read is dated outside 372.15 Mya to 233.6 Mya.

Devonian — about 12 of 382 occurrencesDevonianCarboniferous — about 62 of 382 occurrencesCarboniferousPermian — about 279 of 382 occurrencesPermianEarly Triassic — about 27 of 382 occurrencesMiddle Triassic — about 0 of 382 occurrencesLate Triassic — about 2 of 382 occurrences375–370 Mya — about 1 occurrence370–365 Mya — about 3 occurrences365–361 Mya — about 6 occurrences361–356 Mya — about 3 occurrences356–351 Mya — about 2 occurrences351–346 Mya — about 1.0 occurrences346–341 Mya — about 4 occurrences341–336 Mya — about 6 occurrences336–332 Mya — about 4 occurrences332–327 Mya — about 3 occurrences327–322 Mya — about 4 occurrences322–317 Mya — about 4 occurrences317–312 Mya — about 5 occurrences312–308 Mya — about 7 occurrences308–303 Mya — about 12 occurrences303–298 Mya — about 12 occurrences298–293 Mya — about 19 occurrences293–288 Mya — about 61 occurrences288–284 Mya — about 8 occurrences284–279 Mya — about 21 occurrences279–274 Mya — about 21 occurrences274–269 Mya — about 5 occurrences269–264 Mya — about 7 occurrences264–260 Mya — about 26 occurrences260–255 Mya — about 38 occurrences255–250 Mya — about 98 occurrences240–236 Mya — about 0.8 occurrences236–231 Mya — about 1 occurrence358.86 Mya237 Mya375 Mya231 Mya

382 occurrences of Kirkbyidae 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

382 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

77 formations

Holmwood — 28.94°S, 115.54°EQixia — 26.09°N, 117.83°EQixia — 32.15°N, 119.10°EQixia — 31.95°N, 119.16°EQixia — 31.63°N, 117.96°EQixia — 30.64°N, 110.75°EChangxing — 31.08°N, 119.71°EChangxing — 25.73°N, 117.74°EChangxing — 31.79°N, 104.58°EChangxing — 31.59°N, 104.32°ENagyvisnyo — 48.10°N, 20.47°ENagyvisnyo — 48.14°N, 20.43°ENagyvisnyo — 48.15°N, 20.44°EPamucak — 36.69°N, 30.46°EKokarkuyu — 36.69°N, 30.46°EMaokou — 32.62°N, 105.86°ENaujoji Akmené — 55.75°N, 22.50°ENaujoji Akmené — 54.82°N, 23.93°ENaujoji Akmené — 55.72°N, 23.07°ENaujoji Akmené — 56.00°N, 23.67°ENaujoji Akmené — 55.93°N, 23.28°ENaujoji Akmené — 54.42°N, 22.78°ENaujoji Akmené — 55.78°N, 21.83°EBellerophon — 46.57°N, 11.63°EIwaizaki — 38.83°N, 141.60°ETak Fa — 15.83°N, 100.93°ETak Fa — 15.97°N, 100.87°EFayetteville — 36.19°N, 94.09°WFayetteville — 36.08°N, 94.13°WFayetteville — 36.00°N, 94.01°WNeva — 38.37°N, 96.62°WNeva — 39.18°N, 96.59°WNeva — 36.71°N, 96.66°WWujiaping — 25.57°N, 106.66°EWujiaping — 31.69°N, 104.43°EWujiaping — 32.31°N, 105.46°EStanton — 39.08°N, 94.93°WStanton — 39.22°N, 94.90°WJulfa — 38.73°N, 45.58°EArqov — 30.75°N, 34.67°EArqov — 30.99°N, 35.20°EArqov — 30.98°N, 34.81°EArqov — 31.21°N, 35.19°EArqov — 31.38°N, 35.37°ERoad Canyon — 30.39°N, 103.14°WElmdale — 38.37°N, 96.62°WElmdale — 39.17°N, 96.54°WDalong — 22.27°N, 107.69°EHenrietta — 38.65°N, 90.37°WWreford — 39.08°N, 96.78°WWreford — 38.37°N, 96.59°WGrenzland — 46.58°N, 13.18°EKapp Starostin — 78.08°N, 13.80°EKapp Starostin — 77.01°N, 16.21°EKapp Starostin — 77.56°N, 15.03°E

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The named rock units Kirkbyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 53 further formations hold fewer occurrences each and are not listed. 31 occurrences have no formation on record, which is common for older literature.

Kirkbyidae and its relatives

Permian

Where Kirkbyidae and its relatives were recorded in the Permian.

Found in the same rock

1,557 taxa

The Paleobiology Database records 278 sites for Kirkbyidae, and this reads 240 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

72 references

Each of the 382 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. 60 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 Kirkbya Jones, 1859

Source
GBIF
Credit
Naturalis Biodiversity Center
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itKirkbyoidea through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich and Bassler 1906