Ductina

Ductina is a genus of extinct, small to average sized, eyeless phacopid trilobite, that lived during the Devonian.

Ductina

Uncredited · CC BY-SA 3.0 · via Wikipedia/Commons. 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
PhacopidaePBDB
Diet
carnivorePBDB, for Phacopina
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
blindPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 17 million years on record.

The record covers at least 410.62 Mya to 393.47 Mya. No occurrence read is dated outside 413.02 Mya to 387.95 Mya.

Devonian — about 2 of 2 occurrencesDevonian414–413 Mya — about 0.2 occurrences413–412 Mya — about 0.4 occurrences412–411 Mya — about 0.4 occurrences411–410 Mya — about 0.1 occurrences394–393 Mya — about 0.1 occurrences393–392 Mya — about 0.2 occurrences392–391 Mya — about 0.2 occurrences391–390 Mya — about 0.2 occurrences390–389 Mya — about 0.2 occurrences389–388 Mya — about 0.2 occurrences388–387 Mya — about 0.1 occurrences410.62 Mya393.47 Mya413.5 Mya387.4 Mya

2 occurrences of Ductina on record, most of them in the Devonian. 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

2 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

2 formations

Nandan — 24.53°N, 115.58°EMia Le — 22.23°N, 106.18°E

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The named rock units Ductina has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Ductina and its relatives

Devonian

Where Ductina and its relatives were recorded in the Devonian.

Found in the same rock

37 taxa

The Paleobiology Database records 1 site for Ductina, 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

2 references

Each of the 2 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 Ductina

Credit
nobody named on the record
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Ductina 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPhacopidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Richter 1931