Coleoidea

Coleoidea or Dibranchiata is one of the two subclasses of cephalopod molluscs containing all the various taxa popularly thought of as "soft-bodied" or "shell-less". Unlike its sister groups, the shelled †Ammonoidea and Nautiloidea, the coleoids have at most an internal shell called cuttlebone or gladius that is used for buoyancy or as muscle attachment. Some species, notably the incirrate octopuses, have lost their internal shell altogether, while in some it has been replaced by a chitinous support structure.

Coleoidea

Nhobgood Nick Hobgood · 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
CephalopodaPBDB
Diet
carnivorePBDB, for Cephalopoda
Life habit
nektonicPBDB, for Cephalopoda
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 413 million years on record.

The record covers at least 413.02 Mya to 11.7 ka. No occurrence read is dated outside 538.8 Mya to 0 Mya.

Cambrian — about 1 of 3035 occurrencesCambrianOrdovician — about 0 of 3035 occurrencesSilurian — about 0 of 3035 occurrencesDevonian — about 91 of 3035 occurrencesDevonianCarboniferous — about 115 of 3035 occurrencesCarboniferousPermian — about 83 of 3035 occurrencesPermianEarly Triassic — about 16 of 3035 occurrencesMiddle Triassic — about 113 of 3035 occurrencesLate Triassic — about 99 of 3035 occurrencesEarly Jurassic — about 548 of 3035 occurrencesMiddle Jurassic — about 263 of 3035 occurrencesLate Jurassic — about 432 of 3035 occurrencesEarly Cretaceous — about 839 of 3035 occurrencesLate Cretaceous — about 383 of 3035 occurrencesPaleocene — about 6 of 3035 occurrencesEocene — about 23 of 3035 occurrencesOligocene — about 3 of 3035 occurrencesMiocene — about 14 of 3035 occurrencesPliocene — about 3 of 3035 occurrencesPleistocene — about 2 of 3035 occurrences550–531 Mya — about 0.1 occurrences531–513 Mya — about 0.2 occurrences513–495 Mya — about 0.2 occurrences495–476 Mya — about 0.2 occurrences476–458 Mya — about 0.2 occurrences458–440 Mya — about 0.2 occurrences440–421 Mya — about 0.2 occurrences421–403 Mya — about 18 occurrences403–385 Mya — about 25 occurrences385–366 Mya — about 43 occurrences366–348 Mya — about 4 occurrences348–330 Mya — about 13 occurrences330–311 Mya — about 45 occurrences311–293 Mya — about 64 occurrences293–275 Mya — about 35 occurrences275–256 Mya — about 26 occurrences256–238 Mya — about 137 occurrences238–220 Mya — about 77 occurrences220–202 Mya — about 27 occurrences202–183 Mya — about 389 occurrences183–165 Mya — about 314 occurrences165–147 Mya — about 437 occurrences147–128 Mya — about 604 occurrences128–110 Mya — about 268 occurrences110–92 Mya — about 152 occurrences92–73 Mya — about 223 occurrences73–55 Mya — about 85 occurrences55–37 Mya — about 20 occurrences37–18 Mya — about 6 occurrences18–0 Mya — about 20 occurrences413.02 Mya11.7 ka550 Mya0 Mya

3,035 occurrences of Coleoidea on record, most of them in the Early Cretaceous. 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

3,035 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

437 formations

Belemnite Marls — 50.72°N, 2.85°WBelemnite Marls — 50.73°N, 2.87°WBelemnite Marls — 50.76°N, 2.86°WBelemnite Marls — 50.76°N, 2.85°WPalnatokes Bjerg — 74.46°N, 20.17°WPalnatokes Bjerg — 74.45°N, 20.14°WPalnatokes Bjerg — 74.55°N, 19.83°WPalnatokes Bjerg — 74.59°N, 19.58°WChari — 23.67°N, 69.00°EChari — 23.50°N, 70.50°EKap Leslie — 70.48°N, 21.97°WMarnes de Fontaneilles — 43.85°N, 3.12°EGraham — 32.73°N, 98.64°WGraham — 33.27°N, 98.11°WGraham — 33.19°N, 98.11°WGraham — 33.17°N, 98.15°WGraham — 33.15°N, 98.16°WGraham — 33.12°N, 98.30°WGraham — 33.14°N, 99.18°WBersek Marl — 47.75°N, 18.50°EJurensismergel — 47.95°N, 7.82°EHalstatt — 47.60°N, 13.88°EHalstatt — 47.65°N, 13.70°EHalstatt — 47.56°N, 13.63°EHalstatt — 47.63°N, 13.69°EHalstatt — 47.65°N, 13.63°EHalstatt — 46.51°N, 14.71°EOkarahia Sandstone — 42.57°S, 173.52°EOkarahia Sandstone — 42.60°S, 173.42°EOkarahia Sandstone — 42.55°S, 173.50°ESzentivánhegy Limestone — 47.17°N, 17.79°EPhosphoria — 42.97°N, 106.78°WPhosphoria — 39.60°N, 110.82°WPhosphoria — 47.06°N, 109.43°WPhosphoria — 44.00°N, 114.00°WPhosphoria — 41.33°N, 113.21°WPhosphoria — 42.91°N, 111.70°WPhosphoria — 42.88°N, 111.48°WPhosphoria — 42.79°N, 111.38°WPhosphoria — 42.60°N, 111.47°WPhosphoria — 45.10°N, 112.78°WPhosphoria — 45.03°N, 112.68°WPhosphoria — 45.03°N, 112.92°WPhosphoria — 44.73°N, 112.80°WPhosphoria — 44.68°N, 112.44°WPhosphoria — 44.76°N, 112.30°WŠtramberk Limestone — 49.58°N, 18.12°EAhlen — 51.80°N, 8.05°EAhlen — 51.83°N, 8.02°EAhlen — 51.72°N, 8.03°EAhlen — 51.82°N, 8.15°EAhlen — 51.72°N, 7.93°EAhlen — 51.95°N, 7.98°EAhlen — 51.83°N, 7.83°EYuryung-Tumus — 74.02°N, 111.58°EMogyorósdomb Limestone — 47.17°N, 17.79°EBulog — 43.82°N, 18.44°EBulog — 43.86°N, 18.45°EFossil Bluff — 79.82°S, 55.00°WFossil Bluff — 71.53°S, 68.83°WFossil Bluff — 72.00°S, 69.00°WFossil Bluff — 71.78°S, 68.75°WFossil Bluff — 71.88°S, 68.83°WFossil Bluff — 71.83°S, 68.67°WFossil Bluff — 71.70°S, 68.83°WFossil Bluff — 72.15°S, 69.08°WBudden Canyon — 40.51°N, 122.45°WBudden Canyon — 40.52°N, 122.46°WBudden Canyon — 40.42°N, 122.66°WBudden Canyon — 40.47°N, 122.62°WBesano — 45.91°N, 8.95°ELower Lias — 51.80°N, 1.88°WPrida — 40.28°N, 118.08°WMount Goodenough — 67.95°N, 135.41°WLuckovska — 49.03°N, 18.33°E

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The named rock units Coleoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 413 further formations hold fewer occurrences each and are not listed. 1,126 occurrences have no formation on record, which is common for older literature.

Coleoidea and its relatives

Early Cretaceous

Where Coleoidea and its relatives were recorded in the Early Cretaceous.

Found in the same rock

2,170 taxa

The Paleobiology Database records at least 1,351 sites for Coleoidea, and this reads 240 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

556 references

Each of the 3,035 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. 544 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 content1

Picture of Coleoidea

Credit
Nhobgood Nick Hobgood
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itCephalopoda through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bather 1888