Zetoceras

Zetoceras is an extinct ammonoid cephalopod genus from the suborder Phylloceratina that lived during the Early and Middle Jurassic in what is now Europe, and is included in the (family) Phylloceratidae.

Zetoceras

via GBIF · CC0 · via GBIF. 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
PhylloceratinaePBDB
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 27 million years on record.

The record covers at least 192.9 Mya to 165.3 Mya. No occurrence read is dated outside 201.4 Mya to 161.5 Mya.

Late Triassic — about 0 of 141 occurrencesEarly Jurassic — about 139 of 141 occurrencesEarly JurassicMiddle Jurassic — about 2 of 141 occurrencesMiddle JurassicLate Jurassic — about 0 of 141 occurrences202–201 Mya — about 0.1 occurrences201–199 Mya — about 0.6 occurrences199–198 Mya — about 6 occurrences198–197 Mya — about 6 occurrences197–195 Mya — about 6 occurrences195–194 Mya — about 6 occurrences194–193 Mya — about 9 occurrences193–191 Mya — about 16 occurrences191–190 Mya — about 16 occurrences190–188 Mya — about 17 occurrences188–187 Mya — about 17 occurrences187–186 Mya — about 16 occurrences186–184 Mya — about 18 occurrences184–183 Mya — about 3 occurrences183–181 Mya — about 0.3 occurrences181–180 Mya — about 0.3 occurrences180–179 Mya — about 0.3 occurrences179–177 Mya — about 0.3 occurrences177–176 Mya — about 0.3 occurrences176–175 Mya — about 0.3 occurrences172–170 Mya — about 0.2 occurrences170–169 Mya — about 0.6 occurrences169–168 Mya — about 0.2 occurrences166–165 Mya — about 0.1 occurrences165–163 Mya — about 0.4 occurrences163–162 Mya — about 0.4 occurrences162–161 Mya — about 0.2 occurrences192.9 Mya165.3 Mya202.2 Mya160.7 Mya

141 occurrences of Zetoceras 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

141 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

12 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°EIsztimér Limestone — 47.20°N, 17.90°EFannin — 53.18°N, 132.02°WFannin — 53.38°N, 132.27°WFannin — 53.20°N, 132.05°WAllgäu — 47.14°N, 9.84°EAllgäu — 47.15°N, 10.10°EGhost Creek — 53.18°N, 132.02°WGhost Creek — 53.41°N, 132.30°WAdnet — 47.46°N, 13.56°EAdnet — 47.14°N, 9.84°ESchnöll — 47.70°N, 13.17°EKialagvik — 57.31°N, 156.42°WSierra Chacai Co — 39.28°S, 70.38°WAdnet — 48.89°N, 19.08°EAdnet — 46.01°N, 25.47°E

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The named rock units Zetoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 76 occurrences have no formation on record, which is common for older literature.

Zetoceras and its relatives

Early Jurassic

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

Found in the same rock

361 taxa

The Paleobiology Database records 102 sites for Zetoceras, 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

21 references

Each of the 141 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. 9 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 Zetoceras

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows 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 itPhylloceratinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Kovacs 1939)