Dualina annulosa

Dualina annulosa

via GBIF · CC BY-NC 4.0 · 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
DualinaPBDB
Diet
suspension feederPBDB, for Pteriomorphia
Life habit
epifaunalPBDB, for Pteriomorphia
Motility
facultatively mobilePBDB, for Pteriomorphia
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 30 million years on record.

Every occurrence read is dated to somewhere between 422.7 Mya and 393.47 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Silurian — about 2 of 3 occurrencesSilurianDevonian — about 1 of 3 occurrencesDevonian423–422 Mya — about 0.3 occurrences422–421 Mya — about 0.7 occurrences421–420 Mya — about 0.7 occurrences420–419 Mya — about 0.4 occurrences419–418 Mya — about 0.0 occurrences418–417 Mya — about 0.0 occurrences417–416 Mya — about 0.0 occurrences416–415 Mya — about 0.0 occurrences415–414 Mya — about 0.0 occurrences414–413 Mya — about 0.0 occurrences413–412 Mya — about 0.0 occurrences412–411 Mya — about 0.0 occurrences411–410 Mya — about 0.0 occurrences410–409 Mya — about 0.0 occurrences409–408 Mya — about 0.0 occurrences408–407 Mya — about 0.0 occurrences407–406 Mya — about 0.0 occurrences406–405 Mya — about 0.0 occurrences405–404 Mya — about 0.0 occurrences404–403 Mya — about 0.0 occurrences403–402 Mya — about 0.0 occurrences402–401 Mya — about 0.0 occurrences401–400 Mya — about 0.0 occurrences400–399 Mya — about 0.0 occurrences399–398 Mya — about 0.0 occurrences398–397 Mya — about 0.0 occurrences397–396 Mya — about 0.0 occurrences396–395 Mya — about 0.0 occurrences395–394 Mya — about 0.0 occurrences394–393 Mya — about 0.0 occurrences423.3 Mya392.9 Mya

3 occurrences of Dualina annulosa on record, most of them in the Silurian. 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

3 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

Alticola — 46.62°N, 12.88°E

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The named rock units Dualina annulosa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Dualina annulosa and its relatives

Silurian

Where Dualina annulosa and its relatives were recorded in the Silurian.

Found in the same rock

17 taxa

The Paleobiology Database records 3 sites for Dualina annulosa, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Dualina annulosa

Source
GBIF
Credit
via GBIF
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow 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 itDualina through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Barrande 1881