Atreta nilssoni

Atreta nilssoni

via iDigBio · CC BY · 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
AtretaPBDB
Diet
suspension feederPBDB, for Dimyidae
Life habit
epifaunalPBDB, for Dimyidae
Motility
stationary, attachedPBDB, for Dimyidae
Vision
blindPBDB, for Bivalvia
Environment
marinePBDB, for Pectinida

Time the record covers

At least 27 million years on record.

The record covers at least 93.9 Mya to 66 Mya. No occurrence read is dated outside 100.5 Mya to 61.66 Mya.

Early Cretaceous — about 0 of 24 occurrencesLate Cretaceous — about 23 of 24 occurrencesLate CretaceousPaleocene — about 1 of 24 occurrencesPaleocene101–100 Mya — about 0.3 occurrences100–99 Mya — about 0.6 occurrences99–97 Mya — about 0.6 occurrences97–96 Mya — about 0.6 occurrences96–95 Mya — about 0.6 occurrences95–93 Mya — about 0.3 occurrences84–82 Mya — about 0.4 occurrences82–81 Mya — about 0.5 occurrences81–80 Mya — about 0.5 occurrences80–78 Mya — about 0.5 occurrences78–77 Mya — about 0.5 occurrences77–76 Mya — about 0.5 occurrences76–74 Mya — about 0.5 occurrences74–73 Mya — about 0.5 occurrences73–72 Mya — about 2 occurrences72–70 Mya — about 3 occurrences70–69 Mya — about 3 occurrences69–68 Mya — about 3 occurrences68–66 Mya — about 3 occurrences66–65 Mya — about 0.9 occurrences65–64 Mya — about 0.3 occurrences64–62 Mya — about 0.3 occurrences62–61 Mya — about 0.1 occurrences93.9 Mya66 Mya101.3 Mya60.9 Mya

24 occurrences of Atreta nilssoni on record, most of them in the Late Cretaceous. 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

24 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

8 formations

opoka — 51.32°N, 21.95°Eopoka — 51.15°N, 21.72°Eopoka — 51.10°N, 21.80°EAhlen — 51.72°N, 7.93°EAhlen — 51.72°N, 7.85°EBranderfleck — 47.67°N, 12.17°EMaastricht — 51.00°N, 6.00°EGreensand — 51.33°N, 21.97°EMaastrichtian chalk — 56.97°N, 9.68°EBeer Head Limestone — 50.75°N, 2.33°WPattenau — 47.83°N, 12.69°E

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The named rock units Atreta nilssoni has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Atreta nilssoni and its relatives

Late Cretaceous

Where Atreta nilssoni and its relatives were recorded in the Late Cretaceous.

Found in the same rock

482 taxa

The Paleobiology Database records 22 sites for Atreta nilssoni, 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

8 references

Each of the 24 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 Atreta nilssoni

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
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 itAtreta through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hagenow 1842)