Coilopoceras

Coilopoceras is a compressed, involute, lenticular ammonitid from the Cretaceous, with a narrow venter and raggedy ammonitic suture; type of the Coilopoceratidae, a family in the Acanthoceratoidea of the suborder Ammonitina.

Coilopoceras

via iDigBio · CC BY-NC-SA · 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
CoilopoceratidaePBDB
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 6.6 million years on record.

The record covers at least 100.5 Mya to 93.9 Mya. No occurrence read is dated outside 113.2 Mya to 85.7 Mya.

Early Cretaceous — about 1 of 115 occurrencesEarly CretaceousLate Cretaceous — about 114 of 115 occurrencesLate Cretaceous114–113 Mya — about 0.0 occurrences113–112 Mya — about 0.1 occurrences112–111 Mya — about 0.1 occurrences111–110 Mya — about 0.1 occurrences110–109 Mya — about 0.1 occurrences109–108 Mya — about 0.1 occurrences108–107 Mya — about 0.1 occurrences107–106 Mya — about 0.1 occurrences106–105 Mya — about 0.1 occurrences105–104 Mya — about 0.1 occurrences104–103 Mya — about 0.1 occurrences103–102 Mya — about 0.1 occurrences102–101 Mya — about 0.1 occurrences101–100 Mya — about 0.1 occurrences100–99 Mya — about 0.7 occurrences99–98 Mya — about 0.7 occurrences98–98 Mya — about 0.7 occurrences98–97 Mya — about 0.7 occurrences97–96 Mya — about 0.7 occurrences96–95 Mya — about 0.7 occurrences95–94 Mya — about 5 occurrences94–93 Mya — about 25 occurrences93–92 Mya — about 25 occurrences92–91 Mya — about 25 occurrences91–90 Mya — about 25 occurrences90–89 Mya — about 3 occurrences89–88 Mya — about 0.1 occurrences88–87 Mya — about 0.1 occurrences87–86 Mya — about 0.1 occurrences86–85 Mya — about 0.0 occurrences100.5 Mya93.9 Mya113.8 Mya85.2 Mya

115 occurrences of Coilopoceras 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

115 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

20 formations

Mancos Shale — 35.72°N, 106.92°WMancos Shale — 34.70°N, 107.88°WMancos Shale — 33.88°N, 106.75°WMancos Shale — 35.87°N, 106.91°WMancos Shale — 35.35°N, 107.02°WMancos Shale — 35.61°N, 107.00°WMancos Shale — 36.40°N, 106.82°WMancos Shale — 36.60°N, 106.73°WMancos Shale — 35.98°N, 106.91°WMancos Shale — 35.53°N, 106.97°WMancos Shale — 35.47°N, 106.88°WMancos Shale — 35.20°N, 107.36°WMancos Shale — 34.83°N, 107.67°WMancos Shale — 34.44°N, 107.74°WMancos Shale — 34.46°N, 107.71°WMancos Shale — 33.50°N, 104.06°WMancos Shale — 32.50°N, 107.70°WMancos Shale — 35.45°N, 106.20°WCotinguiba — 10.76°S, 37.07°WCotinguiba — 10.85°S, 37.17°WCotinguiba — 10.86°S, 37.15°WWata — 28.65°N, 33.24°EWata — 29.67°N, 34.50°EWata — 30.38°N, 33.52°EWata — 28.81°N, 33.50°EWata — 29.28°N, 34.72°EWata — 28.80°N, 34.48°EWata — 28.68°N, 32.42°EIndidura — 29.35°N, 101.05°WIndidura — 21.93°N, 102.17°WConor — 6.57°S, 78.73°WCajamarca — 6.68°S, 78.53°WCajamarca — 6.77°S, 78.62°WCoñor — 6.87°S, 78.15°WCoñor — 7.16°S, 78.51°WMexcala — 17.97°N, 99.27°WCarlile Shale — 36.36°N, 104.52°WCarlile Shale — 36.39°N, 104.33°WMassillan — 44.24°N, 4.75°EBoquillas — 29.50°N, 105.00°WOdukpani — 5.21°N, 8.22°EEze-Aku Shales — 6.43°N, 7.82°EMungo River — 7.74°N, 8.50°EYolde — 9.69°N, 11.62°EChonta — 8.77°S, 74.53°WFite Ranch Sandstone — 33.92°N, 106.87°WTres Hermanos — 33.88°N, 106.75°WOjinaga — 30.75°N, 105.18°WSan Rafael — 5.55°N, 73.06°W

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The named rock units Coilopoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 occurrences have no formation on record, which is common for older literature.

Coilopoceras and its relatives

Late Cretaceous

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

Found in the same rock

190 taxa

The Paleobiology Database records 106 sites for Coilopoceras, 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

31 references

Each of the 115 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. 19 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 Coilopoceras

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-SA
Commercial use
the licence does not allow it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itCoilopoceratidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1903