Ammodiscus

Searched as Ammodiscus glabratus. The Paleobiology Database treats Ammodiscus as the accepted name.

Ammodiscus

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
AmmodiscidaePBDB
Diet
herbivorePBDB, for Ammodiscidae
Life habit
epifaunalPBDB, for Ammodiscidae
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At least 10 million years on record.

The record covers at least 66 Mya to 56 Mya. No occurrence read is dated outside 83.6 Mya to 48.07 Mya.

Late Cretaceous — about 6 of 12 occurrencesLate CretaceousPaleocene — about 2 of 12 occurrencesPaleoceneEocene — about 4 of 12 occurrencesEocene84–83 Mya — about 0.1 occurrences83–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–72 Mya — about 0.3 occurrences72–71 Mya — about 0.9 occurrences71–70 Mya — about 0.9 occurrences70–68 Mya — about 0.9 occurrences68–67 Mya — about 0.9 occurrences67–66 Mya — about 0.8 occurrences60–58 Mya — about 0.5 occurrences58–57 Mya — about 0.8 occurrences57–56 Mya — about 0.8 occurrences56–55 Mya — about 0.6 occurrences55–54 Mya — about 0.6 occurrences54–52 Mya — about 0.6 occurrences52–51 Mya — about 0.6 occurrences51–50 Mya — about 0.6 occurrences50–49 Mya — about 0.6 occurrences49–47 Mya — about 0.3 occurrences66 Mya56 Mya84.3 Mya47.4 Mya

12 occurrences of Ammodiscus on record. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

12 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

1 formation

Snow Hill Island — 64.22°S, 57.20°W

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The named rock units Ammodiscus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.

Found in the same rock

2,204 taxa

The Paleobiology Database records 348 sites for Ammodiscus, 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

3 references

Each of the 12 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

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

No 3D scan of Ammodiscus 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 itAmmodiscidae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Reuss 1862