Ammodiscus incertus

Ammodiscus incertus

via iDigBio · CC0 · via iDigBio. 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
AmmodiscusPBDB
Diet
herbivorePBDB, for Ammodiscidae
Life habit
epifaunalPBDB, for Ammodiscidae
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At least 303 million years on record.

The record covers at least 330.3 Mya to 27.3 Mya. No occurrence read is dated outside 335.9 Mya to 23.04 Mya.

Carboniferous — about 6 of 41 occurrencesCarboniferousPermian — about 0 of 41 occurrencesEarly Triassic — about 1 of 41 occurrencesMiddle Triassic — about 2 of 41 occurrencesLate Triassic — about 4 of 41 occurrencesLate TriassicEarly Jurassic — about 14 of 41 occurrencesMiddle Jurassic — about 0 of 41 occurrencesLate Jurassic — about 0 of 41 occurrencesEarly Cretaceous — about 1 of 41 occurrencesEarly CretaceousLate Cretaceous — about 0 of 41 occurrencesPaleocene — about 0 of 41 occurrencesEocene — about 4 of 41 occurrencesOligocene — about 9 of 41 occurrencesMiocene — about 0 of 41 occurrences342–331 Mya — about 3 occurrences331–320 Mya — about 2 occurrences320–310 Mya — about 0.4 occurrences310–299 Mya — about 0.4 occurrences255–245 Mya — about 1 occurrence245–234 Mya — about 3 occurrences234–223 Mya — about 1 occurrence212–201 Mya — about 3 occurrences201–190 Mya — about 11 occurrences190–179 Mya — about 3 occurrences125–114 Mya — about 0.8 occurrences114–104 Mya — about 0.2 occurrences60–49 Mya — about 1 occurrence49–38 Mya — about 2 occurrences38–28 Mya — about 0.2 occurrences28–17 Mya — about 9 occurrences330.3 Mya27.3 Mya342 Mya17 Mya

41 occurrences of Ammodiscus incertus on record, most of them in the Early Jurassic. 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

41 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

14 formations

Wuchihshan — 24.03°N, 120.65°ESan Cassiano — 46.53°N, 11.42°ESchnöll — 47.70°N, 13.17°EChungliao — 24.03°N, 120.65°EAlisitos — 31.52°N, 116.65°WSchöll — 47.70°N, 13.17°EKuta — 6.03°S, 144.84°EHardrow Scar Limestone III — 54.30°N, 2.15°WSimonstone Limestone IV — 54.30°N, 2.15°WMiddle Limestone V — 54.30°N, 2.15°WThree Yard Limestone VII — 54.30°N, 2.15°WMain Limestone IX — 54.30°N, 2.15°WWestbury — 51.22°N, 2.82°WGraford — 33.22°N, 97.75°W

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The named rock units Ammodiscus incertus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Ammodiscus incertus and its relatives

Early Jurassic

Where Ammodiscus incertus and its relatives were recorded in the Early Jurassic.

Found in the same rock

314 taxa

The Paleobiology Database records 41 sites for Ammodiscus incertus, 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

10 references

Each of the 41 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 Ammodiscus incertus

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Ammodiscus incertus 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 itAmmodiscus through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (d'Orbigny 1839)