Forbesiceras

Forbesiceras is an ammonite that lived during the Cenomanian stage of the Late Cretaceous. Shells are moderately large, reaching diameters of 33 cm (13 in)or so, forming smooth, involute oxycones with narrow or sharp rims and closed umbilici.

Forbesiceras

via iDigBio · CC BY · via iDigBio. 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
ForbesiceratidaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 6.6 million years on record.

Every occurrence read is dated to somewhere between 100.5 Mya and 93.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 0 of 62 occurrencesLate Cretaceous — about 62 of 62 occurrencesLate Cretaceous101–100 Mya — about 0.1 occurrences100–100 Mya — about 2 occurrences100–100 Mya — about 2 occurrences100–100 Mya — about 2 occurrences100–99 Mya — about 2 occurrences99–99 Mya — about 2 occurrences99–99 Mya — about 2 occurrences99–99 Mya — about 2 occurrences99–98 Mya — about 2 occurrences98–98 Mya — about 2 occurrences98–98 Mya — about 2 occurrences98–98 Mya — about 2 occurrences98–97 Mya — about 2 occurrences97–97 Mya — about 2 occurrences97–97 Mya — about 2 occurrences97–97 Mya — about 2 occurrences97–96 Mya — about 2 occurrences96–96 Mya — about 2 occurrences96–96 Mya — about 2 occurrences96–96 Mya — about 2 occurrences96–95 Mya — about 2 occurrences95–95 Mya — about 2 occurrences95–95 Mya — about 2 occurrences95–95 Mya — about 2 occurrences95–94 Mya — about 2 occurrences94–94 Mya — about 2 occurrences94–94 Mya — about 2 occurrences94–94 Mya — about 0.1 occurrences101 Mya93.4 Mya

62 occurrences of Forbesiceras on record, most of them in the Late Cretaceous. 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

62 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

30 formations

Odukpani — 5.19°N, 8.27°EOdukpani — 4.57°N, 6.98°EOdukpani — 5.13°N, 8.34°EMzinene — 26.92°S, 32.26°EMzinene — 27.87°S, 32.34°EBuda Limestone — 30.71°N, 104.77°WBuda Limestone — 31.04°N, 104.05°WCraie de Rouen — 48.60°N, 0.63°ESaint Jouin — 49.65°N, 0.17°ESaint Jouin — 49.55°N, 0.12°EHikagenosawa — 44.00°N, 143.00°EUnnamed Vocontian — 43.22°N, 5.53°EPepper Shale — 31.48°N, 97.29°WCotinguiba — 10.76°S, 37.07°WAitamir — 36.23°N, 60.40°EAitamir — 36.62°N, 60.07°EFahdène — 35.85°N, 8.08°EFahdène — 35.35°N, 9.23°ECraie Glauconieuse — 49.08°N, 0.50°ESables du Lamnay — 48.60°N, 0.63°EWoodbine — 32.86°N, 97.06°WCalcaires de Fiz — 46.09°N, 6.79°ECalcaires des Fiz — 45.97°N, 6.69°EBeer Head Limestone — 50.83°N, 2.45°WLower Chalk — 50.83°N, 2.60°WUpper Greensand — 50.78°N, 2.63°WNagase — 33.75°N, 133.97°ERomirón — 6.87°S, 78.15°WBoquillas — 29.18°N, 100.31°WGrayson Marl — 32.77°N, 97.20°WHalal — 30.67°N, 33.42°E

Loading coastlines…

The named rock units Forbesiceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 further formations hold fewer occurrences each and are not listed. 12 occurrences have no formation on record, which is common for older literature.

Forbesiceras and its relatives

Late Cretaceous

Where Forbesiceras and its relatives were recorded in the Late Cretaceous.

Found in the same rock

231 taxa

The Paleobiology Database records 56 sites for Forbesiceras, 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

28 references

Each of the 62 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. 16 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 Forbesiceras

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Forbesiceras 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 itForbesiceratidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.