Dualina

No picture of Dualina was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dualina, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
DualinidaePBDB
Diet
suspension feederPBDB, for Pteriomorphia
Life habit
epifaunalPBDB, for Pteriomorphia
Motility
facultatively mobilePBDB, for Pteriomorphia
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 13 million years on record.

The record covers at least 432.9 Mya to 419.62 Mya. No occurrence read is dated outside 438.6 Mya to 393.47 Mya.

Silurian — about 78 of 91 occurrencesSilurianDevonian — about 13 of 91 occurrencesDevonian440–438 Mya — about 0.2 occurrences438–436 Mya — about 0.5 occurrences436–435 Mya — about 0.5 occurrences435–433 Mya — about 0.5 occurrences433–432 Mya — about 0.5 occurrences432–430 Mya — about 0.6 occurrences430–429 Mya — about 0.9 occurrences429–427 Mya — about 0.9 occurrences427–425 Mya — about 7 occurrences425–424 Mya — about 12 occurrences424–422 Mya — about 16 occurrences422–421 Mya — about 23 occurrences421–419 Mya — about 16 occurrences419–418 Mya — about 3 occurrences418–416 Mya — about 3 occurrences416–414 Mya — about 3 occurrences414–413 Mya — about 2 occurrences413–411 Mya — about 0.3 occurrences411–410 Mya — about 0.2 occurrences410–408 Mya — about 0.1 occurrences408–407 Mya — about 0.1 occurrences407–405 Mya — about 0.1 occurrences405–404 Mya — about 0.1 occurrences404–402 Mya — about 0.1 occurrences402–400 Mya — about 0.1 occurrences400–399 Mya — about 0.1 occurrences399–397 Mya — about 0.1 occurrences397–396 Mya — about 0.1 occurrences396–394 Mya — about 0.1 occurrences394–393 Mya — about 0.1 occurrences432.9 Mya419.62 Mya439.5 Mya392.6 Mya

91 occurrences of Dualina 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

91 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

11 formations

Kopanina — 50.00°N, 14.35°EKopanina — 50.20°N, 12.48°EKopanina — 50.05°N, 14.37°EKopanina — 50.08°N, 14.47°EPozary — 50.00°N, 14.35°EPozary — 50.08°N, 14.47°EPozary — 49.93°N, 14.18°EFluminimaggiore — 39.50°N, 8.50°EFluminimaggiore — 39.32°N, 8.65°ELipeon — 24.00°S, 65.00°WElton Beds — 52.37°N, 2.73°WElton Beds — 52.17°N, 3.42°WAlticola — 46.62°N, 12.88°EWhitcliffe Beds — 52.37°N, 2.73°WMiddle Elton — 52.00°N, 4.00°WSredninskaya — 79.67°N, 96.52°EBádenas — 40.78°N, 1.65°WCardiola — 46.60°N, 12.87°E

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The named rock units Dualina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 48 occurrences have no formation on record, which is common for older literature.

Dualina and its relatives

Silurian

Where Dualina and its relatives were recorded in the Silurian.

Found in the same rock

415 taxa

The Paleobiology Database records 60 sites for Dualina, 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

17 references

Each of the 91 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. 5 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 content0

No picture of Dualina was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dualina, or no answer at all. This entry cannot say which.

No 3D scan of Dualina was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itDualinidae through timeFormations of the SilurianThe world it lived on

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