Acratia

Acratia

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
AcratiidaePBDB
Diet
detritivore, grazerPBDB, for Podocopida
Life habit
epifaunalPBDB, for Podocopida
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At least 190 million years on record.

The record covers at least 383.4 Mya to 192.9 Mya. No occurrence read is dated outside 387.95 Mya to 184.2 Mya.

Devonian — about 129 of 465 occurrencesDevonianCarboniferous — about 12 of 465 occurrencesCarboniferousPermian — about 257 of 465 occurrencesPermianEarly Triassic — about 21 of 465 occurrencesMiddle Triassic — about 28 of 465 occurrencesLate Triassic — about 9 of 465 occurrencesLate TriassicEarly Jurassic — about 9 of 465 occurrencesEarly Jurassic392–385 Mya — about 3 occurrences385–378 Mya — about 5 occurrences378–371 Mya — about 111 occurrences371–364 Mya — about 8 occurrences364–357 Mya — about 2 occurrences357–350 Mya — about 1 occurrence350–343 Mya — about 0.3 occurrences343–336 Mya — about 2 occurrences336–328 Mya — about 2 occurrences328–321 Mya — about 1 occurrence321–314 Mya — about 0.5 occurrences314–307 Mya — about 1 occurrence307–300 Mya — about 2 occurrences300–293 Mya — about 6 occurrences293–286 Mya — about 11 occurrences286–279 Mya — about 12 occurrences279–272 Mya — about 14 occurrences272–265 Mya — about 10 occurrences265–258 Mya — about 45 occurrences258–251 Mya — about 175 occurrences251–244 Mya — about 29 occurrences244–237 Mya — about 6 occurrences237–230 Mya — about 4 occurrences230–223 Mya — about 0.2 occurrences215–208 Mya — about 2 occurrences208–201 Mya — about 2 occurrences201–194 Mya — about 5 occurrences194–187 Mya — about 2 occurrences187–180 Mya — about 1 occurrence383.4 Mya192.9 Mya392 Mya180 Mya

465 occurrences of Acratia 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

465 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

66 formations

Changxing — 31.08°N, 119.71°EChangxing — 25.73°N, 117.74°EChangxing — 31.79°N, 104.58°EChangxing — 29.71°N, 113.93°EMaokou — 32.62°N, 105.86°ENesen — 36.22°N, 51.35°EKowala — 50.92°N, 20.58°ENagyvisnyo — 48.10°N, 20.47°ENagyvisnyo — 48.14°N, 20.43°ENagyvisnyo — 48.15°N, 20.50°EWujiaping — 25.57°N, 106.66°EWujiaping — 32.31°N, 105.46°EWujiaping — 31.79°N, 104.58°ENaujoji Akmené — 54.55°N, 22.80°ENaujoji Akmené — 55.75°N, 22.50°ENaujoji Akmené — 54.67°N, 24.17°ENaujoji Akmené — 54.67°N, 24.25°ENaujoji Akmené — 54.52°N, 24.13°ENaujoji Akmené — 54.82°N, 23.93°ENaujoji Akmené — 54.48°N, 24.62°ENaujoji Akmené — 54.25°N, 25.62°ENaujoji Akmené — 55.72°N, 23.07°ENaujoji Akmené — 56.00°N, 23.67°ENaujoji Akmené — 55.92°N, 23.33°ENaujoji Akmené — 55.25°N, 22.27°ENaujoji Akmené — 54.42°N, 22.78°ENaujoji Akmené — 55.78°N, 21.83°EMarelb — 45.07°N, 28.78°EPamucak — 36.69°N, 30.46°EQixia — 26.09°N, 117.83°EQixia — 32.15°N, 119.10°EQixia — 31.95°N, 119.16°E"Bituminous Limestone" — 44.44°N, 19.53°EGerennavar — 48.10°N, 20.47°EChochal — 15.25°N, 90.21°WPha Nok Khao — 17.11°N, 101.88°EPha Nok Khao — 16.07°N, 100.91°ETak Fa — 15.97°N, 100.87°ETak Fa — 15.32°N, 100.38°ETak Fa — 15.38°N, 100.59°ETak Fa — 15.19°N, 101.52°EChuanshan — 26.42°N, 117.66°EChuanshan — 29.90°N, 119.55°ETulong — 28.46°N, 86.10°ETulong — 28.44°N, 86.14°EUzum Bair — 45.07°N, 28.78°EKhuff — 21.04°N, 57.69°EBlacourt — 50.83°N, 1.77°EBellerophon — 46.57°N, 11.63°EEpiskopi — 37.31°N, 23.42°EDevils Gate Limestone — 39.58°N, 116.07°WHuglu Tuffite — 36.92°N, 34.24°E

Loading coastlines…

The named rock units Acratia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 42 further formations hold fewer occurrences each and are not listed. 101 occurrences have no formation on record, which is common for older literature.

Acratia and its relatives

Permian

Where Acratia and its relatives were recorded in the Permian.

Found in the same rock

1,056 taxa

The Paleobiology Database records 292 sites for Acratia, 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

69 references

Each of the 465 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. 57 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 Acratia

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 itAcratiidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Delo 1930