Cleviceras

Cleviceras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during Toarcian and possibly even uppermost Pliensbachian age. Sometimes, it is considered to be a synonym of Eleganticeras.

Cleviceras

Sailko · CC BY 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
HarpoceratinaePBDB
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 1.6 million years on record.

The record covers at least 182.9 Mya to 181.3 Mya. No occurrence read is dated outside 184.2 Mya to 179.3 Mya.

Early Jurassic — about 45 of 45 occurrencesEarly Jurassic184–184 Mya — about 2 occurrences184–184 Mya — about 4 occurrences184–184 Mya — about 4 occurrences184–184 Mya — about 4 occurrences184–183 Mya — about 4 occurrences183–183 Mya — about 4 occurrences183–183 Mya — about 4 occurrences183–183 Mya — about 2 occurrences183–183 Mya — about 2 occurrences183–182 Mya — about 2 occurrences182–182 Mya — about 1 occurrence182–182 Mya — about 1 occurrence182–182 Mya — about 1 occurrence182–182 Mya — about 1 occurrence182–181 Mya — about 1 occurrence181–181 Mya — about 2 occurrences181–181 Mya — about 2 occurrences181–181 Mya — about 2 occurrences181–181 Mya — about 2 occurrences181–180 Mya — about 1 occurrence180–180 Mya — about 0.2 occurrences180–180 Mya — about 0.2 occurrences180–180 Mya — about 0.2 occurrences180–180 Mya — about 0.2 occurrences180–179 Mya — about 0.2 occurrences179–179 Mya — about 0.1 occurrences182.9 Mya181.3 Mya184.7 Mya178.8 Mya

45 occurrences of Cleviceras 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

45 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

4 formations

Whiteaves — 53.42°N, 132.26°WWhiteaves — 52.96°N, 131.61°WTakwahoni — 58.65°N, 133.08°WTakwahoni — 58.66°N, 132.68°WSpatsizi — 57.62°N, 128.97°WSpatsizi — 57.49°N, 128.87°WLast Creek — 51.11°N, 123.03°W

Loading coastlines…

The named rock units Cleviceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Cleviceras and its relatives

Early Jurassic

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

Found in the same rock

21 taxa

The Paleobiology Database records 38 sites for Cleviceras, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

3 references

Each of the 45 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. 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 Cleviceras

Credit
Sailko
Licence
CC BY 3.0
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 itHarpoceratinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Howarth 1992