Phylloceratidae

Phylloceratidae is the predominant family of the Phylloceratina with some 15 or more genera found in rocks ranging from the Lower Jurassic to the Upper Cretaceous. Members of the Phylloceratidae are characterized by smooth, involute shells with very thin walls. Many are covered with fine growth lines but are usually without ribbing. Sutures are complex with the major and minor branches of the saddles with phylloid or spatulate endings.

Phylloceratidae

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
PhylloceratoideaPBDB
Diet
carnivorePBDB, for Phylloceratida
Life habit
nektonicPBDB, for Phylloceratida
Motility
actively mobilePBDB, for Phylloceratida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 155 million years on record.

The record covers at least 227.3 Mya to 72.2 Mya. No occurrence read is dated outside 237 Mya to 66 Mya.

Middle Triassic — about 0 of 3503 occurrencesLate Triassic — about 2 of 3503 occurrencesLate TriassicEarly Jurassic — about 1389 of 3503 occurrencesEarly JurassicMiddle Jurassic — about 322 of 3503 occurrencesLate Jurassic — about 271 of 3503 occurrencesLate JurassicEarly Cretaceous — about 1204 of 3503 occurrencesEarly CretaceousLate Cretaceous — about 315 of 3503 occurrencesLate CretaceousPaleocene — about 0 of 3503 occurrences240–234 Mya — about 0.3 occurrences234–229 Mya — about 0.6 occurrences229–223 Mya — about 0.1 occurrences211–205 Mya — about 0.3 occurrences205–199 Mya — about 68 occurrences199–193 Mya — about 187 occurrences193–187 Mya — about 512 occurrences187–181 Mya — about 434 occurrences181–175 Mya — about 174 occurrences175–169 Mya — about 67 occurrences169–163 Mya — about 183 occurrences163–157 Mya — about 137 occurrences157–152 Mya — about 114 occurrences152–146 Mya — about 80 occurrences146–140 Mya — about 56 occurrences140–134 Mya — about 299 occurrences134–128 Mya — about 319 occurrences128–122 Mya — about 314 occurrences122–116 Mya — about 70 occurrences116–110 Mya — about 68 occurrences110–104 Mya — about 55 occurrences104–98 Mya — about 69 occurrences98–92 Mya — about 47 occurrences92–86 Mya — about 27 occurrences86–80 Mya — about 67 occurrences80–74 Mya — about 41 occurrences74–69 Mya — about 75 occurrences69–63 Mya — about 40 occurrences227.3 Mya72.2 Mya240 Mya63 Mya

3,503 occurrences of Phylloceratidae on record, most of them in the Early 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

3,503 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

229 formations

Isztimér — 47.18°N, 17.83°EIsztimér — 47.19°N, 17.90°EIsztimér — 47.28°N, 17.84°EBugarone — 43.75°N, 13.02°EBugarone — 43.33°N, 13.22°ETűzkövesárok Limestone — 47.34°N, 18.09°EIsztimér Limestone — 47.20°N, 17.90°EIsztimér Limestone — 46.98°N, 17.30°EKisgerecse Marl — 47.70°N, 18.49°EBersek Marl — 47.75°N, 18.50°EBudden Canyon — 40.47°N, 122.62°WBudden Canyon — 40.52°N, 122.46°WBudden Canyon — 40.42°N, 122.65°WBudden Canyon — 40.43°N, 122.65°WBudden Canyon — 40.60°N, 122.91°WDalichai — 37.15°N, 57.15°EDalichai — 37.09°N, 56.74°EDalichai — 36.37°N, 54.29°EDalichai — 36.59°N, 58.69°EDalichai — 36.56°N, 59.30°EDalichai — 36.50°N, 58.95°EDalichai — 37.38°N, 56.69°EKisgerecse — 47.66°N, 18.47°EEl Mergueb — 36.84°N, 9.62°ERosso Ammonitico — 38.00°N, 12.00°ERosso Ammonitico — 38.02°N, 12.88°EMiria — 22.77°S, 114.18°EMiria — 22.68°S, 114.24°EMiria — 22.96°S, 114.08°EMiria — 22.92°S, 114.10°EMiria — 22.83°S, 114.14°EMiria — 22.72°S, 114.25°EMiria — 22.63°S, 114.26°EMzinene — 27.90°S, 32.32°EMzinene — 27.95°S, 32.31°EMzinene — 27.74°S, 32.29°EMzinene — 27.18°S, 32.19°EDonji Milanovac — 44.53°N, 22.04°EMatanuska — 62.01°N, 147.58°WMatanuska — 62.08°N, 147.83°WMatanuska — 62.03°N, 147.65°WMatanuska — 61.99°N, 147.78°WMatanuska — 61.84°N, 148.06°WMatanuska — 61.82°N, 147.45°WMatanuska — 61.80°N, 147.70°WMatanuska — 61.87°N, 147.35°WMatanuska — 61.74°N, 148.84°WMatanuska — 61.86°N, 148.25°WMatanuska — 61.73°N, 148.75°WGrès verts helvétiques — 45.99°N, 6.71°EGrès verts helvétiques — 46.10°N, 6.82°EGrès verts helvétiques — 45.90°N, 6.34°EGrès verts helvétiques — 46.04°N, 6.62°EGrès verts helvétiques — 46.01°N, 6.35°EGrès verts helvétiques — 46.05°N, 6.52°EAllgäu — 47.88°N, 14.41°EAllgäu — 47.14°N, 9.84°EAllgäu — 47.18°N, 9.98°EAllgäu — 47.15°N, 10.10°EAllgäu — 47.08°N, 9.72°EChinitna — 60.17°N, 152.64°WChinitna — 60.12°N, 152.59°WChinitna — 59.83°N, 153.03°WChinitna — 59.81°N, 153.06°WChinitna — 59.73°N, 153.19°WChinitna — 59.69°N, 153.26°WChinitna — 59.67°N, 153.39°WMaiolica — 43.59°N, 12.54°EMaiolica — 43.47°N, 12.72°EMaiolica — 43.53°N, 12.58°EMaiolica — 45.75°N, 9.48°ESandilands — 53.91°N, 133.15°WSaku — 44.07°N, 141.93°ESaku — 44.74°N, 142.01°ESaku — 44.11°N, 142.00°ESaku — 44.02°N, 141.91°ESaku — 44.03°N, 141.95°ESaku — 43.05°N, 142.12°ESaku — 43.08°N, 142.00°EQuiriquina — 36.61°S, 72.97°WQuiriquina — 36.63°S, 73.07°WQuiriquina — 36.70°S, 72.97°WSteinmühl — 47.91°N, 14.35°EHuayacocotla — 20.33°N, 98.22°WHuayacocotla — 20.36°N, 98.21°W

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The named rock units Phylloceratidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 205 further formations hold fewer occurrences each and are not listed. 1,894 occurrences have no formation on record, which is common for older literature.

Phylloceratidae and its relatives

Early Jurassic

Where Phylloceratidae and its relatives were recorded in the Early Jurassic.

Found in the same rock

904 taxa

The Paleobiology Database records at least 1,103 sites for Phylloceratidae, 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

355 references

Each of the 3,503 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. 343 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 Phylloceratidae

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

No 3D scan of Phylloceratidae 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 itPhylloceratoidea through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Zittel 1884