Cenoceras

Cenoceras is an extinct genus within the cephalopod mollusc family Nautilidae, which in turn makes up part of the superfamily Nautilaceae. This genus has been described by Hyatt in 1884. The type species is Cenoceras intermedium, which was originally described by Sowerby 1816 as Nautilus intermedius.

Cenoceras

NobuTamura email:nobu.tamura@yahoo.com palaeocritti · 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
CenoceratidaePBDB
Diet
carnivorePBDB, for Nautilida
Life habit
nektobenthicPBDB, for Nautilida
Motility
actively mobilePBDB, for Nautilida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 81 million years on record.

The record covers at least 233.6 Mya to 152.21 Mya. No occurrence read is dated outside 241.464 Mya to 149.2 Mya.

Middle Triassic — about 0 of 219 occurrencesLate Triassic — about 9 of 219 occurrencesLate TriassicEarly Jurassic — about 160 of 219 occurrencesEarly JurassicMiddle Jurassic — about 48 of 219 occurrencesMiddle JurassicLate Jurassic — about 2 of 219 occurrencesLate Jurassic243–240 Mya — about 0.0 occurrences240–237 Mya — about 0.2 occurrences237–234 Mya — about 5 occurrences234–231 Mya — about 0.9 occurrences231–227 Mya — about 0.7 occurrences227–224 Mya — about 0.1 occurrences224–221 Mya — about 0.1 occurrences221–218 Mya — about 0.9 occurrences218–215 Mya — about 0.3 occurrences215–211 Mya — about 0.1 occurrences211–208 Mya — about 0.1 occurrences208–205 Mya — about 0.3 occurrences205–202 Mya — about 0.8 occurrences202–199 Mya — about 20 occurrences199–195 Mya — about 22 occurrences195–192 Mya — about 20 occurrences192–189 Mya — about 11 occurrences189–186 Mya — about 11 occurrences186–183 Mya — about 17 occurrences183–179 Mya — about 29 occurrences179–176 Mya — about 20 occurrences176–173 Mya — about 18 occurrences173–170 Mya — about 20 occurrences170–167 Mya — about 14 occurrences167–163 Mya — about 4 occurrences163–160 Mya — about 1 occurrence160–157 Mya — about 0.5 occurrences157–154 Mya — about 0.3 occurrences154–151 Mya — about 0.6 occurrences151–147 Mya — about 0.5 occurrences233.6 Mya152.21 Mya243 Mya147 Mya

219 occurrences of Cenoceras 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

219 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

32 formations

Jurensismergel — 49.91°N, 11.46°EJurensismergel — 47.95°N, 7.82°EBlue Lias — 51.00°N, 3.00°WBlue Lias — 50.00°N, 2.00°WSaltrio — 45.88°N, 8.92°EWhiteaves — 53.42°N, 132.26°WWhiteaves — 52.96°N, 131.61°WWhiteaves — 53.19°N, 132.02°WDhruma — 23.17°N, 46.33°EDhruma — 25.33°N, 45.50°EDhruma — 25.50°N, 45.00°EDhruma — 22.50°N, 46.00°EDhruma — 23.97°N, 46.17°EDhruma — 21.88°N, 45.83°EOust — 36.35°N, 10.07°EOust — 36.24°N, 9.99°EAlmonacid de la Cuba — 41.29°N, 0.79°WCalcaires à Gryphées — 45.81°N, 4.79°ECalcaires à Gryphées — 45.89°N, 4.62°EBeacon Limestone — 50.94°N, 2.86°WBeacon Limestone — 50.94°N, 2.85°WKialagvik — 57.31°N, 156.41°WKialagvik — 57.40°N, 156.37°WPassage Beds — 54.21°N, 0.29°WSchnoll — 47.00°N, 13.00°ESchnöll — 47.70°N, 13.17°EMarrat — 23.92°N, 46.25°EBraunjura alpha & Braunjura beta — 48.90°N, 7.67°ESpatsizi — 57.47°N, 128.94°WMarnes et Calcaires de Strassen — 49.61°N, 6.08°EOsipa — 71.81°N, 127.24°ERio Palomar — 41.29°N, 0.79°WLuxembourg Sandstone — 49.74°N, 6.05°ELiegende Bankkalk — 48.12°N, 8.87°EBelemnite Marls — 50.73°N, 2.87°WNewmarracarra Limestone — 28.66°S, 114.66°EZlambach — 47.64°N, 13.66°E

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The named rock units Cenoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 further formations hold fewer occurrences each and are not listed. 125 occurrences have no formation on record, which is common for older literature.

Cenoceras and its relatives

Early Jurassic

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

Found in the same rock

686 taxa

The Paleobiology Database records 158 sites for Cenoceras, 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

53 references

Each of the 219 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. 41 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 Cenoceras

Credit
NobuTamura email:nobu.tamura@yahoo.com palaeocritti
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itCenoceratidae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hyatt 1884)