Perisphinctidae

Perisphinctidae is a family of Middle and Upper Jurassic discoidal ammonites in the order Ammonitida. They have a shell morphology that is mostly evolute, typically with biplicate, simple, or triplicate ribbing. Large forms have simple apertures and smooth body chambers while small forms have lappets and ribbed body chambers.

Perisphinctidae

Hectonichus · 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
PerisphinctoideaPBDB
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 61 million years on record.

The record covers at least 174.7 Mya to 113.2 Mya. No occurrence read is dated outside 201.4 Mya to 66 Mya.

Late Triassic — about 0 of 2319 occurrencesEarly Jurassic — about 1 of 2319 occurrencesEarly JurassicMiddle Jurassic — about 829 of 2319 occurrencesMiddle JurassicLate Jurassic — about 1471 of 2319 occurrencesLate JurassicEarly Cretaceous — about 17 of 2319 occurrencesEarly CretaceousLate Cretaceous — about 0 of 2319 occurrencesLate CretaceousPaleocene — about 0 of 2319 occurrences204–199 Mya — about 0.1 occurrences199–195 Mya — about 0.3 occurrences195–190 Mya — about 0.3 occurrences190–185 Mya — about 0.3 occurrences185–181 Mya — about 0.3 occurrences181–176 Mya — about 0.3 occurrences176–171 Mya — about 2 occurrences171–167 Mya — about 258 occurrences167–162 Mya — about 526 occurrences162–157 Mya — about 523 occurrences157–152 Mya — about 424 occurrences152–148 Mya — about 251 occurrences148–143 Mya — about 318 occurrences143–138 Mya — about 10 occurrences138–134 Mya — about 3 occurrences134–129 Mya — about 0.5 occurrences129–124 Mya — about 0.3 occurrences124–120 Mya — about 0.3 occurrences120–115 Mya — about 0.6 occurrences115–110 Mya — about 0.5 occurrences110–106 Mya — about 0.4 occurrences106–101 Mya — about 0.4 occurrences101–96 Mya — about 0.1 occurrences96–91 Mya — about 0.1 occurrences91–87 Mya — about 0.1 occurrences87–82 Mya — about 0.1 occurrences82–77 Mya — about 0.1 occurrences77–73 Mya — about 0.1 occurrences73–68 Mya — about 0.1 occurrences68–63 Mya — about 0.0 occurrences174.7 Mya113.2 Mya204 Mya63 Mya

2,319 occurrences of Perisphinctidae on record, most of them in the Late Jurassic. 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

2,319 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

163 formations

La Caja — 23.63°N, 100.85°WLa Caja — 23.62°N, 100.85°WLa Caja — 23.70°N, 100.87°WTangiduval — 37.71°N, 66.61°ETangiduval — 37.97°N, 66.73°ETangiduval — 37.85°N, 66.69°ETangiduval — 38.00°N, 66.80°ETangiduval — 37.63°N, 66.62°ETangiduval — 38.21°N, 67.01°ETangiduval — 37.84°N, 66.62°ETangiduval — 38.01°N, 66.91°ELa Manga — 37.23°S, 70.37°WLa Manga — 38.00°S, 70.50°WLa Manga — 38.00°S, 71.00°WLa Manga — 37.00°S, 71.00°WLa Manga — 37.45°S, 70.43°WLa Manga — 36.22°S, 69.88°WLa Manga — 37.00°S, 70.00°WLa Manga — 37.00°S, 70.83°WLa Manga — 36.83°S, 71.00°WLa Manga — 36.00°S, 69.90°WLa Manga — 35.18°S, 70.35°WLa Manga — 34.50°S, 70.00°WLa Manga — 36.21°S, 69.69°WHabo beds — 23.20°N, 69.80°EYatova — 40.98°N, 0.62°WDjangura — 43.94°N, 41.89°EDjangura — 43.97°N, 41.76°EDjangura — 44.25°N, 40.74°EDjangura — 43.97°N, 41.53°EDjangura — 43.91°N, 41.81°EDjangura — 43.91°N, 41.46°EDjangura — 43.89°N, 41.56°EDjangura — 43.96°N, 41.90°E"Berching" — 49.23°N, 11.47°ENaifa — 14.28°N, 48.55°ENaifa — 14.27°N, 48.56°ENaifa — 14.34°N, 48.39°ELotena — 37.23°S, 70.37°WLotena — 39.00°S, 70.00°WLotena — 38.00°S, 70.50°WLotena — 37.00°S, 70.50°WLotena — 37.00°S, 71.00°WLotena — 37.45°S, 70.43°WLotena — 36.22°S, 69.88°WLotena — 36.00°S, 69.90°WLotena — 35.18°S, 70.35°WLotena — 38.62°S, 70.17°WLotena — 37.46°S, 70.47°WHangende–Bankkalke — 47.93°N, 8.94°EGuasasa — 22.27°N, 84.07°WGuasasa — 22.57°N, 83.87°WGuasasa — 22.60°N, 83.78°WGuasasa — 22.67°N, 83.75°WGuasasa — 22.67°N, 83.55°WTsudakhar — 42.47°N, 46.65°ETsudakhar — 42.65°N, 46.93°ETsudakhar — 42.32°N, 47.58°ETsudakhar — 42.56°N, 46.28°ETsudakhar — 42.45°N, 46.85°ETsudakhar — 42.32°N, 47.03°E"Sengenthal" — 49.23°N, 11.47°ESpiti Shale — 32.28°N, 78.02°ESpiti Shale — 32.32°N, 77.95°ESpiti Shale — 32.42°N, 78.08°ERennertshofen — 48.00°N, 11.00°ERennertshofen — 48.00°N, 10.00°ERennertshofen — 48.75°N, 11.05°ERosso Ammonitico — 38.00°N, 12.00°ERosso Ammonitico — 38.02°N, 12.88°EMarnes de Latrecey — 47.98°N, 4.85°ELos Molles — 37.26°S, 70.50°WLos Molles — 37.23°S, 70.37°W"Hartmannshof" — 49.23°N, 11.47°ESawtooth — 48.18°N, 112.88°WSawtooth — 47.88°N, 112.76°WSawtooth — 47.78°N, 112.69°WSawtooth — 47.61°N, 112.79°WSawtooth — 47.52°N, 112.69°WSawtooth — 46.72°N, 113.30°WPálihálás Limestone — 47.72°N, 18.50°EBaisun — 37.71°N, 66.61°EBaisun — 38.00°N, 66.75°EBaisun — 37.85°N, 66.69°EBaisun — 37.97°N, 66.73°EBaisun — 38.25°N, 67.05°EBaisun — 37.62°N, 66.62°EDalichai — 36.27°N, 54.10°EDalichai — 37.09°N, 56.74°EDalichai — 37.15°N, 57.15°EDalichai — 36.37°N, 54.29°EMariposa — 38.89°N, 120.92°WMariposa — 38.76°N, 120.80°WMariposa — 38.10°N, 120.66°WMariposa — 37.98°N, 120.56°WMariposa — 37.95°N, 120.52°WMariposa — 37.90°N, 120.41°WMariposa — 37.85°N, 120.37°WMariposa — 37.54°N, 120.09°WMariposa — 38.50°N, 121.01°W

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The named rock units Perisphinctidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 139 further formations hold fewer occurrences each and are not listed. 1,328 occurrences have no formation on record, which is common for older literature.

Perisphinctidae and its relatives

Late Jurassic

Where Perisphinctidae and its relatives were recorded in the Late Jurassic.

Found in the same rock

1,196 taxa

The Paleobiology Database records at least 907 sites for Perisphinctidae, and this reads 240 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

202 references

Each of the 2,319 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. 190 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 Perisphinctidae

Credit
Hectonichus
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Perisphinctidae 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 itPerisphinctoidea through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Steinmann 1890