Geisonoceratidae

Geisonoceratidae is an extinct family of orthoceroid cephalopods endemic to what would be Asia, Europe, and North America from the Middle Ordovician to the Middle Devonian, living from about 470—380 mya, existing for approximately 90 million years.

Geisonoceratidae

“Jon Zander ( Digon3 )" · 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
DissidoceridaPBDB
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 201 million years on record.

The record covers at least 465.9 Mya to 264.28 Mya. No occurrence read is dated outside 486.85 Mya to 259.857 Mya.

Cambrian — about 0 of 204 occurrencesOrdovician — about 100 of 204 occurrencesOrdovicianSilurian — about 70 of 204 occurrencesSilurianDevonian — about 31 of 204 occurrencesDevonianCarboniferous — about 1 of 204 occurrencesCarboniferousPermian — about 2 of 204 occurrencesPermian491–484 Mya — about 0.1 occurrences484–476 Mya — about 0.2 occurrences476–468 Mya — about 3 occurrences468–460 Mya — about 17 occurrences460–452 Mya — about 44 occurrences452–444 Mya — about 36 occurrences444–436 Mya — about 17 occurrences436–428 Mya — about 24 occurrences428–421 Mya — about 28 occurrences421–413 Mya — about 6 occurrences413–405 Mya — about 14 occurrences405–397 Mya — about 4 occurrences397–389 Mya — about 2 occurrences389–381 Mya — about 7 occurrences334–326 Mya — about 1 occurrence310–303 Mya — about 0.1 occurrences303–295 Mya — about 0.8 occurrences295–287 Mya — about 0.1 occurrences271–263 Mya — about 0.2 occurrences263–255 Mya — about 0.8 occurrences465.9 Mya264.28 Mya491 Mya255 Mya

204 occurrences of Geisonoceratidae 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

204 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

77 formations

Fluminimaggiore — 39.43°N, 8.50°EFluminimaggiore — 39.32°N, 8.53°EFluminimaggiore — 39.50°N, 8.50°EDenley Limestone — 43.21°N, 75.46°WDenley Limestone — 44.00°N, 75.00°WDenley Limestone — 43.28°N, 75.14°WDenley Limestone — 43.00°N, 75.00°WRacine — 43.04°N, 87.91°WRacine — 43.05°N, 88.01°WRacine — 42.73°N, 87.78°WRacine — 42.88°N, 88.04°WWhitby — 45.50°N, 81.00°WWhitby — 43.88°N, 78.86°WWhitby — 43.87°N, 79.03°WWhitby — 43.80°N, 79.12°WWhitby — 44.53°N, 80.38°WBoda Limestone — 61.17°N, 14.71°EBoda Limestone — 61.05°N, 15.20°EBoda Limestone — 60.97°N, 15.13°EKullsberg — 61.05°N, 15.20°EKullsberg — 60.37°N, 14.87°EKullsberg — 60.92°N, 15.10°ELower Shiqipo — 28.15°N, 85.97°EKess-Kess — 30.95°N, 4.05°WVasalemma — 59.24°N, 24.29°EMarcellus — 42.99°N, 76.01°WMarcellus — 42.97°N, 76.14°WMweelrea — 53.63°N, 9.87°WKings Falls — 43.21°N, 75.46°WKochumdek — 49.40°N, 136.38°ENakholmen — 60.00°N, 11.00°ESegerstad Limestone — 57.00°N, 17.00°ESegerstad Limestone — 61.00°N, 15.00°EFolkeslunda — 57.00°N, 17.00°EFolkeslunda — 60.91°N, 15.02°ESeby Limestone — 60.91°N, 15.02°ESeby Limestone — 62.97°N, 14.48°EKopanina — 50.00°N, 14.35°EKopanina — 49.93°N, 14.05°EMaquoketa — 45.00°N, 93.00°WSilica — 41.72°N, 83.72°WChorkuin — 39.88°N, 70.25°EUtica Shale — 42.99°N, 74.80°WUtica Shale — 43.24°N, 75.26°WUtica — 42.98°N, 74.82°WFarr — 47.45°N, 79.67°WFarr — 47.42°N, 79.60°W

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The named rock units Geisonoceratidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 53 further formations hold fewer occurrences each and are not listed. 38 occurrences have no formation on record, which is common for older literature.

Geisonoceratidae and its relatives

Ordovician

Where Geisonoceratidae and its relatives were recorded in the Ordovician.

Found in the same rock

1,962 taxa

The Paleobiology Database records 154 sites for Geisonoceratidae, 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

69 references

Each of the 204 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. 57 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 Geisonoceratidae

Credit
“Jon Zander ( Digon3 )"
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Geisonoceratidae 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 itDissidocerida through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Zhuravleva 1959