Juraphyllitidae

Juraphyllitidae is a family of Lower Jurassic phylloceratin ammonites from Europe, North Africa, and Asia characterized by narrow, evolutely coiled shells, usually with coarse ventral ribbing on the body chamber. The first lateral saddles in the suture are diphyllic, with two terminal branches, others exposed sutural saddles are diphyllic or triphyllic, those covered by successive whorls being monophyllic. A few genera are more involute, with successive whorls partially embracing the flanks of the previous. All are compressed and a few lack ribbing.

Juraphyllitidae

Hectonichus · CC BY-SA 4.0 · 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 15 million years on record.

The record covers at least 199.5 Mya to 184.2 Mya. No occurrence read is dated outside 205.7 Mya to 174.7 Mya.

Late Triassic — about 0 of 653 occurrencesLate TriassicEarly Jurassic — about 653 of 653 occurrencesEarly JurassicMiddle Jurassic — about 0 of 653 occurrences206–205 Mya — about 0.0 occurrences205–204 Mya — about 0.1 occurrences204–203 Mya — about 0.1 occurrences203–202 Mya — about 0.1 occurrences202–201 Mya — about 21 occurrences201–200 Mya — about 50 occurrences200–199 Mya — about 33 occurrences199–198 Mya — about 24 occurrences198–197 Mya — about 24 occurrences197–196 Mya — about 24 occurrences196–194 Mya — about 24 occurrences194–193 Mya — about 24 occurrences193–192 Mya — about 38 occurrences192–191 Mya — about 51 occurrences191–190 Mya — about 51 occurrences190–189 Mya — about 51 occurrences189–188 Mya — about 51 occurrences188–187 Mya — about 51 occurrences187–186 Mya — about 51 occurrences186–185 Mya — about 51 occurrences185–184 Mya — about 31 occurrences184–183 Mya — about 2 occurrences183–182 Mya — about 0.5 occurrences182–181 Mya — about 0.5 occurrences181–179 Mya — about 0.5 occurrences179–178 Mya — about 0.5 occurrences178–177 Mya — about 0.5 occurrences177–176 Mya — about 0.5 occurrences176–175 Mya — about 0.5 occurrences175–174 Mya — about 0.2 occurrences199.5 Mya184.2 Mya206.3 Mya174.1 Mya

653 occurrences of Juraphyllitidae 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

653 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

38 formations

Isztimér — 47.18°N, 17.83°EIsztimér — 47.19°N, 17.90°EIsztimér — 47.28°N, 17.84°ETűzkövesárok Limestone — 47.34°N, 18.09°EGraylock — 44.11°N, 119.43°WSandilands — 53.91°N, 133.15°WSandilands — 53.90°N, 133.15°WIsztimér Limestone — 47.20°N, 17.90°EIsztimér Limestone — 46.98°N, 17.30°EAllgäu — 47.87°N, 14.47°EAllgäu — 47.88°N, 14.41°EAllgäu — 47.14°N, 9.84°EAllgäu — 47.18°N, 9.98°EAllgäu — 47.15°N, 10.10°ELast Creek — 51.09°N, 122.97°WOust — 36.52°N, 10.06°EOust — 36.37°N, 10.09°EOust — 36.35°N, 10.07°EOust — 36.24°N, 9.99°EOust — 35.11°N, 9.68°EBelemnite Marls — 50.73°N, 2.87°WSunrise — 38.49°N, 118.08°WSunrise — 38.81°N, 117.60°WBouraké B — 22.06°S, 166.16°EBouraké B — 22.07°S, 166.13°EAdnet — 46.01°N, 25.47°EAdnet — 47.46°N, 13.56°EAdnet — 47.17°N, 9.99°EFernie — 56.10°N, 123.04°WZlambach — 47.64°N, 13.66°ELower Lias — 51.80°N, 1.88°WSierra de Santa Rosa — 30.63°N, 112.57°WHuayacocotla — 20.33°N, 98.22°WCharmouth Mudstone — 50.72°N, 2.85°WInklin — 59.30°N, 133.79°WInklin — 59.42°N, 134.00°WHasle — 55.10°N, 14.73°EJinji — 23.24°N, 115.46°EFannin — 53.20°N, 132.05°WCalcari Grigi — 45.69°N, 11.20°E

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The named rock units Juraphyllitidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 further formations hold fewer occurrences each and are not listed. 322 occurrences have no formation on record, which is common for older literature.

Juraphyllitidae and its relatives

Early Jurassic

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

Found in the same rock

450 taxa

The Paleobiology Database records 387 sites for Juraphyllitidae, 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

68 references

Each of the 653 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. 56 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 Juraphyllitidae

Credit
Hectonichus
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Juraphyllitidae was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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. Arkell 1950