Forresteria

Forresteria is an extinct genus of cephalopod belonging to the subclass Ammonoidea. They flourished during the late Turonian and early Santonian of the Late Cretaceous, and were global in extent. Forresteria alluaudi and Forresteria hobsoni are considered marker fossils for the lower Coniacian in the American West.

Forresteria

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
BarroisiceratinaePBDB
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 least 6.2 million years on record.

The record covers at least 89.8 Mya to 83.6 Mya. No occurrence read is dated outside 93.9 Mya to 66 Mya.

Late Cretaceous — about 72 of 72 occurrencesLate CretaceousPaleocene — about 0 of 72 occurrences94–93 Mya — about 0.7 occurrences93–93 Mya — about 2 occurrences93–92 Mya — about 2 occurrences92–91 Mya — about 2 occurrences91–90 Mya — about 4 occurrences90–89 Mya — about 15 occurrences89–88 Mya — about 15 occurrences88–87 Mya — about 15 occurrences87–86 Mya — about 15 occurrences86–85 Mya — about 0.8 occurrences84–83 Mya — about 0.0 occurrences83–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–72 Mya — about 0.1 occurrences72–71 Mya — about 0.1 occurrences71–70 Mya — about 0.1 occurrences70–69 Mya — about 0.1 occurrences69–68 Mya — about 0.1 occurrences68–67 Mya — about 0.1 occurrences67–66 Mya — about 0.1 occurrences66–65 Mya — about 0.0 occurrences89.8 Mya83.6 Mya94.5 Mya65.4 Mya

72 occurrences of Forresteria 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

72 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

15 formations

St Lucia — 28.47°S, 32.17°ESt Lucia — 28.43°S, 32.18°ESt Lucia — 28.03°S, 32.28°ESt Lucia — 28.77°S, 31.75°ELa Luna — 9.62°N, 70.35°WLa Luna — 8.01°N, 70.99°WLa Luna — 7.68°N, 72.24°WCotinguiba — 10.76°S, 37.07°WCotinguiba — 10.86°S, 37.15°WMungo River — 4.44°N, 9.49°EMungo River — 4.52°N, 9.49°EMancos Shale — 38.77°N, 111.39°WCelendin — 7.16°S, 78.51°WCarregador de Carreu — 42.17°N, 0.90°EAwgu Ndeaboh Shale — 6.05°N, 7.47°ENiobrara — 38.27°N, 104.61°WFrontier — 42.83°N, 108.73°WMexcala — 18.02°N, 99.15°WAshizawa — 37.17°N, 140.94°ECeyreste — 43.24°N, 5.65°ECraie de Villedieu — 47.74°N, 0.65°ESalinas — 14.25°S, 12.36°E

Loading coastlines…

The named rock units Forresteria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 30 occurrences have no formation on record, which is common for older literature.

Forresteria and its relatives

Late Cretaceous

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

Found in the same rock

174 taxa

The Paleobiology Database records 57 sites for Forresteria, 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

22 references

Each of the 72 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. 10 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 Forresteria

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 Forresteria 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 itBarroisiceratinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Reeside 1932)