Oncocerida

The Oncocerida comprise a diverse group of generally small nautiloid cephalopods known from the Middle Ordovician to the Mississippian, in which the connecting rings are thin and siphuncle segments are variably expanded. At present the order consists of some 16 families, a few of which, such as the Oncoceratidae, Brevicoceratidae, and Acleistoceratidae contain a fair number of genera each while others like the Trimeroceratidae and Archiacoceratidae are represented by only two or three.

Oncocerida

Uncredited · 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
MulticeratoideaPBDB
Diet
carnivorePBDB
Life habit
nektobenthicPBDB
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 173 million years on record.

The record covers at least 477.1 Mya to 303.7 Mya. No occurrence read is dated outside 486.85 Mya to 298.9 Mya.

Cambrian — about 0 of 908 occurrencesOrdovician — about 628 of 908 occurrencesOrdovicianSilurian — about 188 of 908 occurrencesSilurianDevonian — about 78 of 908 occurrencesDevonianCarboniferous — about 14 of 908 occurrencesCarboniferousPermian — about 0 of 908 occurrences491–484 Mya — about 0.8 occurrences484–478 Mya — about 2 occurrences478–471 Mya — about 9 occurrences471–465 Mya — about 34 occurrences465–458 Mya — about 23 occurrences458–452 Mya — about 244 occurrences452–445 Mya — about 281 occurrences445–438 Mya — about 60 occurrences438–432 Mya — about 60 occurrences432–425 Mya — about 40 occurrences425–419 Mya — about 63 occurrences419–412 Mya — about 12 occurrences412–406 Mya — about 16 occurrences406–399 Mya — about 5 occurrences399–393 Mya — about 6 occurrences393–386 Mya — about 20 occurrences386–380 Mya — about 12 occurrences380–373 Mya — about 0.3 occurrences373–367 Mya — about 3 occurrences367–360 Mya — about 2 occurrences360–354 Mya — about 2 occurrences354–347 Mya — about 1 occurrence347–341 Mya — about 1 occurrence341–334 Mya — about 0.7 occurrences334–328 Mya — about 4 occurrences328–321 Mya — about 2 occurrences308–302 Mya — about 2 occurrences302–295 Mya — about 0.6 occurrences477.1 Mya303.7 Mya491 Mya295 Mya

908 occurrences of Oncocerida on record, most of them in the Ordovician. 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

908 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

199 formations

Whitewater — 39.83°N, 84.89°WWhitewater — 39.42°N, 85.01°WWhitewater — 39.00°N, 84.00°WWhitewater — 38.00°N, 85.50°WWhitewater — 39.58°N, 84.75°WWhitewater — 39.63°N, 84.65°WQuimbys Mill — 43.00°N, 91.00°WPlatteville — 45.00°N, 93.00°WGrand Detour — 43.00°N, 91.00°WGrand Detour — 42.55°N, 89.23°WRacine — 42.73°N, 87.78°WRacine — 42.88°N, 88.04°WRacine — 43.05°N, 88.01°WRacine — 41.85°N, 87.65°WNachusa — 43.00°N, 91.00°WGillberga — 57.35°N, 17.05°EGillberga — 57.31°N, 17.00°EGillberga — 57.23°N, 16.98°EJupiter — 49.47°N, 63.62°WJupiter — 49.38°N, 63.60°WJupiter — 49.19°N, 61.73°WJupiter — 49.24°N, 62.24°WJupiter — 49.50°N, 63.00°WDunleith — 43.00°N, 91.00°WBoda Limestone — 61.17°N, 14.71°EBoda Limestone — 61.05°N, 15.20°EBoda Limestone — 61.12°N, 15.17°EBoda Limestone — 60.17°N, 14.70°EHemse Beds — 57.28°N, 18.32°EHemse Beds — 57.53°N, 18.43°EHemse Beds — 57.31°N, 18.37°EMifflin — 43.00°N, 91.00°WValcour — 44.89°N, 73.44°WValcour — 44.88°N, 73.34°WValcour — 44.62°N, 73.42°WAmadjuak — 63.72°N, 68.97°WAmadjuak — 65.25°N, 73.17°WAmadjuak — 68.80°N, 81.24°WGlenwood — 45.00°N, 93.00°WGrande Coupe — 48.53°N, 64.25°WBønsnes — 66.77°N, 13.47°EBønsnes — 60.06°N, 10.21°EWaynesville — 39.45°N, 83.83°WWaynesville — 39.00°N, 84.00°WWaynesville — 39.53°N, 84.08°WPecatonica — 43.00°N, 91.00°WDenley Limestone — 43.21°N, 75.46°WDenley Limestone — 44.00°N, 75.00°WDenley Limestone — 43.28°N, 75.14°WPozary — 49.93°N, 14.18°EPozary — 50.08°N, 14.47°EPozary — 50.03°N, 14.32°EPozary — 49.15°N, 13.57°EKopanina — 50.00°N, 14.35°EKopanina — 49.96°N, 14.18°EKopanina — 49.93°N, 14.05°EXiushan — 28.55°N, 108.85°EXiushan — 28.00°N, 106.00°EPraha — 50.02°N, 14.40°EPraha — 49.98°N, 14.18°EPraha — 49.92°N, 14.07°E

Loading coastlines…

The named rock units Oncocerida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 175 further formations hold fewer occurrences each and are not listed. 99 occurrences have no formation on record, which is common for older literature.

Oncocerida and its relatives

Ordovician

Where Oncocerida and its relatives were recorded in the Ordovician.

Found in the same rock

2,608 taxa

The Paleobiology Database records 415 sites for Oncocerida, 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

156 references

Each of the 908 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. 144 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 Oncocerida

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Oncocerida was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itMulticeratoidea through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Flower and Kummel 1950