Lytoceratidae

Lytoceratidae is a taxonomic family of ammonoid cephalopods belonging to the suborder Lytoceratina, characterized by very evolute shells that generally enlarge rapidly, having whorls in contact but mostly overlapping very sightly, or not at all.

Lytoceratidae

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
LytoceratoideaPBDB
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 157 million years on record.

The record covers at least 241.464 Mya to 83.6 Mya. No occurrence read is dated outside 250.8 Mya to 66 Mya.

Permian — about 0 of 1884 occurrencesEarly Triassic — about 0 of 1884 occurrencesMiddle Triassic — about 1 of 1884 occurrencesLate Triassic — about 1 of 1884 occurrencesLate TriassicEarly Jurassic — about 1079 of 1884 occurrencesEarly JurassicMiddle Jurassic — about 165 of 1884 occurrencesLate Jurassic — about 82 of 1884 occurrencesLate JurassicEarly Cretaceous — about 548 of 1884 occurrencesEarly CretaceousLate Cretaceous — about 7 of 1884 occurrencesLate CretaceousPaleocene — about 0 of 1884 occurrences254–248 Mya — about 0.3 occurrences248–242 Mya — about 0.7 occurrences242–235 Mya — about 0.0 occurrences210–203 Mya — about 0.6 occurrences203–197 Mya — about 189 occurrences197–190 Mya — about 274 occurrences190–184 Mya — about 401 occurrences184–178 Mya — about 157 occurrences178–171 Mya — about 118 occurrences171–165 Mya — about 85 occurrences165–158 Mya — about 26 occurrences158–152 Mya — about 23 occurrences152–146 Mya — about 33 occurrences146–139 Mya — about 33 occurrences139–133 Mya — about 241 occurrences133–126 Mya — about 145 occurrences126–120 Mya — about 89 occurrences120–114 Mya — about 33 occurrences114–107 Mya — about 16 occurrences107–101 Mya — about 11 occurrences101–94 Mya — about 2 occurrences94–88 Mya — about 2 occurrences88–82 Mya — about 2 occurrences82–75 Mya — about 0.9 occurrences75–69 Mya — about 0.6 occurrences69–62 Mya — about 0.2 occurrences241.464 Mya83.6 Mya254 Mya62 Mya

1,884 occurrences of Lytoceratidae 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

1,884 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

124 formations

Jurensismergel — 49.91°N, 11.46°EJurensismergel — 48.83°N, 10.10°EJurensismergel — 47.95°N, 7.82°EIsztimér — 47.18°N, 17.83°EIsztimér — 47.19°N, 17.90°EIsztimér — 47.28°N, 17.84°EIsztimér Limestone — 47.20°N, 17.90°EIsztimér Limestone — 46.98°N, 17.30°ETűzkövesárok Limestone — 47.34°N, 18.09°ESandilands — 53.91°N, 133.15°WLast Creek — 51.11°N, 123.03°WLast Creek — 51.05°N, 122.96°WBugarone — 43.33°N, 13.22°EEl Mergueb — 36.84°N, 9.62°EBersek Marl — 47.75°N, 18.50°EBudden Canyon — 40.42°N, 122.66°WBudden Canyon — 40.47°N, 122.62°WBudden Canyon — 40.43°N, 122.64°WBudden Canyon — 40.60°N, 122.91°WOust — 36.52°N, 10.06°EOust — 36.37°N, 10.09°EOust — 36.35°N, 10.07°ESunrise — 38.81°N, 117.60°WSunrise — 38.49°N, 118.09°WNishinakayama — 34.25°N, 131.00°EKisgerecse — 47.69°N, 18.48°ESteinmühl — 47.91°N, 14.35°EMaiolica — 43.47°N, 12.72°EMaiolica — 45.75°N, 9.48°EMaiolica — 43.53°N, 12.62°EAllgäu — 47.14°N, 9.84°EAllgäu — 47.18°N, 9.98°EAllgäu — 47.15°N, 10.10°EPalnatokes Bjerg — 72.48°N, 22.55°WPalnatokes Bjerg — 74.55°N, 19.83°WPalnatokes Bjerg — 74.50°N, 20.00°WKisgerecse Marl — 47.70°N, 18.49°EMarnes de Fontaneilles — 43.85°N, 3.12°ERossfeld — 47.69°N, 13.66°ERossfeld — 47.79°N, 14.52°EKuhnpasset — 74.50°N, 20.35°WPaskenta — 40.13°N, 122.23°WPaskenta — 39.91°N, 122.56°WTolgyhat Limestone — 47.70°N, 18.49°E

Loading coastlines…

The named rock units Lytoceratidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 100 further formations hold fewer occurrences each and are not listed. 1,084 occurrences have no formation on record, which is common for older literature.

Lytoceratidae and its relatives

Early Jurassic

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

Found in the same rock

893 taxa

The Paleobiology Database records 1,330 sites for Lytoceratidae, 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

224 references

Each of the 1,884 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. 212 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 Lytoceratidae

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

No 3D scan of Lytoceratidae 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 itLytoceratoidea through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Neumayr 1875