Gomphoceras

Gomphoceras is a questionable nautiloid cephalopod genus assigned to the Oncocerida. The family to which it might belong is undetermined.

Gomphoceras

Antonov · Public Domain · 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
OncoceridaPBDB
Diet
carnivorePBDB, for Oncocerida
Life habit
nektobenthicPBDB, for Oncocerida
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 50 million years on record.

The record covers at least 432.9 Mya to 382.31 Mya. No occurrence read is dated outside 443.1 Mya to 358.86 Mya.

Ordovician — about 0 of 11 occurrencesSilurian — about 7 of 11 occurrencesSilurianDevonian — about 4 of 11 occurrencesDevonianCarboniferous — about 0 of 11 occurrences445–442 Mya — about 0.1 occurrences442–439 Mya — about 0.2 occurrences439–436 Mya — about 1 occurrence436–433 Mya — about 1 occurrence433–430 Mya — about 0.5 occurrences430–427 Mya — about 0.5 occurrences427–424 Mya — about 1 occurrence424–421 Mya — about 0.7 occurrences421–419 Mya — about 0.7 occurrences395–392 Mya — about 0.1 occurrences392–389 Mya — about 0.3 occurrences389–386 Mya — about 0.8 occurrences386–383 Mya — about 1 occurrence383–381 Mya — about 0.6 occurrences381–378 Mya — about 0.1 occurrences378–375 Mya — about 0.1 occurrences375–372 Mya — about 0.1 occurrences372–369 Mya — about 0.1 occurrences369–366 Mya — about 0.1 occurrences366–363 Mya — about 0.1 occurrences363–360 Mya — about 0.1 occurrences360–357 Mya — about 0.1 occurrences432.9 Mya382.31 Mya445 Mya357 Mya

11 occurrences of Gomphoceras on record, most of them in the Silurian. 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

11 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

9 formations

Louisville — 40.58°N, 86.67°WFiddlers Green — 42.85°N, 78.80°WDawson Bay — 51.65°N, 99.81°WHemse Beds — 57.28°N, 18.32°EDamery Beds — 51.88°N, 2.23°WMoscow — 42.67°N, 75.48°WWadleigh Limestone — 55.49°N, 132.36°WWether Law Linn — 55.81°N, 3.35°WVaughn Gulch — 36.82°N, 118.08°W

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The named rock units Gomphoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Gomphoceras and its relatives

Silurian

Where Gomphoceras and its relatives were recorded in the Silurian.

Found in the same rock

392 taxa

The Paleobiology Database records 10 sites for Gomphoceras, 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

10 references

Each of the 11 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 content2

Picture of Gomphoceras

Credit
Antonov
Licence
Public Domain
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itOncocerida through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sowerby 1839