Aspidochirotida

Synallactida is a rankless clade of sea cucumbers, but is referred to as an order. Taxa within Synallactida were previously classified in an order called Aspidochirotida, which was determined to be polyphyletic in 2017.

Aspidochirotida

laszlo-photo · CC BY 2.0 · 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
HolothuroideaPBDB
Diet
deposit feeder, suspension feederPBDB
Life habit
epifaunalPBDB
Motility
actively mobilePBDB
Vision
blindPBDB, for Holothuroidea
Environment
marinePBDB

Time the record covers

At least 442 million years on record.

The record covers at least 443.1 Mya to 129 ka. No occurrence read is dated outside 449.5 Mya to 11.7 ka.

Ordovician — about 1 of 42 occurrencesSilurian — about 0 of 42 occurrencesDevonian — about 3 of 42 occurrencesDevonianCarboniferous — about 18 of 42 occurrencesCarboniferousPermian — about 2 of 42 occurrencesPermianEarly Triassic — about 0 of 42 occurrencesMiddle Triassic — about 3 of 42 occurrencesLate Triassic — about 1 of 42 occurrencesEarly Jurassic — about 0 of 42 occurrencesMiddle Jurassic — about 0 of 42 occurrencesLate Jurassic — about 4 of 42 occurrencesEarly Cretaceous — about 0 of 42 occurrencesLate Cretaceous — about 2 of 42 occurrencesPaleocene — about 0 of 42 occurrencesEocene — about 0 of 42 occurrencesOligocene — about 0 of 42 occurrencesMiocene — about 0 of 42 occurrencesPliocene — about 0 of 42 occurrencesPleistocene — about 8 of 42 occurrences458–443 Mya — about 1.0 occurrences443–428 Mya — about 0.0 occurrences413–397 Mya — about 2 occurrences397–382 Mya — about 1 occurrence321–306 Mya — about 18 occurrences306–290 Mya — about 2 occurrences260–245 Mya — about 0.4 occurrences245–229 Mya — about 4 occurrences168–153 Mya — about 4 occurrences107–92 Mya — about 0.5 occurrences92–76 Mya — about 0.5 occurrences76–61 Mya — about 1 occurrence15–0 Mya — about 8 occurrences443.1 Mya129 ka458 Mya0 Mya

42 occurrences of Aspidochirotida on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group. 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

42 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

Wewoka — 35.04°N, 96.36°WWhite Chalk — 54.52°N, 13.63°EFlorena — 39.14°N, 96.50°WOjlemyr cherts — 57.82°N, 18.90°EBeattie — 39.56°N, 96.02°WMuschelkalk — 41.27°N, 1.12°ECassian — 46.51°N, 11.95°EMuschelkalk — 52.07°N, 22.09°E

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The named rock units Aspidochirotida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.

Aspidochirotida and its relatives

Carboniferous

Where Aspidochirotida and its relatives were recorded in the Carboniferous.

Found in the same rock

462 taxa

The Paleobiology Database records 39 sites for Aspidochirotida, 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

12 references

Each of the 42 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 Aspidochirotida

Credit
laszlo-photo
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Aspidochirotida 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 itHolothuroidea through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Brandt 1835