Leioceras

Leioceras

Uncredited · via Wikidata/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
LeioceratinaePBDB
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 most 23 million years on record.

Every occurrence read is dated to somewhere between 184.2 Mya and 161.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 15 of 182 occurrencesEarly JurassicMiddle Jurassic — about 167 of 182 occurrencesMiddle JurassicLate Jurassic — about 0 of 182 occurrences185–184 Mya — about 0.3 occurrences184–183 Mya — about 0.8 occurrences183–182 Mya — about 0.8 occurrences182–182 Mya — about 0.8 occurrences182–181 Mya — about 0.8 occurrences181–180 Mya — about 1 occurrence180–179 Mya — about 2 occurrences179–178 Mya — about 2 occurrences178–178 Mya — about 2 occurrences178–177 Mya — about 2 occurrences177–176 Mya — about 2 occurrences176–175 Mya — about 2 occurrences175–174 Mya — about 13 occurrences174–174 Mya — about 35 occurrences174–173 Mya — about 35 occurrences173–172 Mya — about 35 occurrences172–171 Mya — about 35 occurrences171–170 Mya — about 16 occurrences170–170 Mya — about 0.1 occurrences170–169 Mya — about 0.1 occurrences169–168 Mya — about 0.1 occurrences168–167 Mya — about 0.1 occurrences167–167 Mya — about 0.1 occurrences167–166 Mya — about 0.1 occurrences166–165 Mya — about 0.1 occurrences165–164 Mya — about 0.1 occurrences164–163 Mya — about 0.1 occurrences163–163 Mya — about 0.1 occurrences163–162 Mya — about 0.1 occurrences162–161 Mya — about 0.0 occurrences184.7 Mya161 Mya

182 occurrences of Leioceras on record, most of them in the Middle 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

182 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

17 formations

Opalinuston — 47.95°N, 7.82°EAchdorf — 48.18°N, 8.76°EAchdorf — 48.13°N, 8.70°ETölgyhát — 47.70°N, 18.47°ECastillo Pedroso — 43.02°N, 4.17°WJurensismergel — 49.91°N, 11.46°ESubbetic Basin — 37.59°N, 3.21°WSubbetic Basin — 38.13°N, 1.47°WBraunjura alpha & Braunjura beta — 48.90°N, 7.67°EInici — 37.64°N, 13.00°EKingak — 68.16°N, 138.04°WKingak — 68.05°N, 138.07°WDogger — 54.41°N, 0.87°WDogger — 54.50°N, 0.69°WAmergou — 34.50°N, 5.13°WBraunjura beta — 48.83°N, 10.10°EDalichai — 36.27°N, 54.10°EStaa — 36.35°N, 10.07°EKef el Orma — 36.35°N, 10.07°Escissum Beds — 51.80°N, 1.88°WInferior Oolite — 50.74°N, 2.80°W

Loading coastlines…

The named rock units Leioceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 40 occurrences have no formation on record, which is common for older literature.

Leioceras and its relatives

Middle Jurassic

Where Leioceras and its relatives were recorded in the Middle Jurassic.

Found in the same rock

249 taxa

The Paleobiology Database records 83 sites for Leioceras, 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

26 references

Each of the 182 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. 14 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 content2

Picture of Leioceras

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itLeioceratinae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.