Sowerbyceras

Sowerbyceras is a genus of ammonoid cephalopods belonging to the family Phylloceratidae. These nektonic carnivores lived during the Jurassic period, from Oxfordian to Kimmeridgian age.

Sowerbyceras

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
PtychophylloceratinaePBDB
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 13 million years on record.

The record covers at least 165.3 Mya to 152.21 Mya. No occurrence read is dated outside 168.2 Mya to 143.1 Mya.

Middle Jurassic — about 12 of 62 occurrencesMiddle JurassicLate Jurassic — about 50 of 62 occurrencesLate JurassicEarly Cretaceous — about 0 of 62 occurrences169–168 Mya — about 0.3 occurrences168–167 Mya — about 0.7 occurrences167–166 Mya — about 0.7 occurrences166–165 Mya — about 0.8 occurrences165–164 Mya — about 2 occurrences164–163 Mya — about 2 occurrences163–163 Mya — about 2 occurrences163–162 Mya — about 2 occurrences162–161 Mya — about 2 occurrences161–160 Mya — about 2 occurrences160–159 Mya — about 2 occurrences159–158 Mya — about 3 occurrences158–157 Mya — about 3 occurrences157–157 Mya — about 3 occurrences157–156 Mya — about 3 occurrences156–155 Mya — about 3 occurrences155–154 Mya — about 7 occurrences154–153 Mya — about 7 occurrences153–152 Mya — about 7 occurrences152–151 Mya — about 2 occurrences151–150 Mya — about 2 occurrences150–150 Mya — about 2 occurrences150–149 Mya — about 0.9 occurrences149–148 Mya — about 0.0 occurrences148–147 Mya — about 0.0 occurrences147–146 Mya — about 0.0 occurrences146–145 Mya — about 0.0 occurrences145–144 Mya — about 0.0 occurrences144–143 Mya — about 0.0 occurrences143–143 Mya — about 0.0 occurrences165.3 Mya152.21 Mya168.7 Mya142.6 Mya

62 occurrences of Sowerbyceras on record, most of them in the Late 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

62 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

9 formations

Rosso Ammonitico — 38.00°N, 12.00°ERosso Ammonitico — 38.02°N, 12.88°EGerpigem — 44.27°N, 40.17°EGerpigem — 44.08°N, 40.93°EGerpigem — 44.08°N, 40.95°EDalichai — 37.20°N, 57.18°EDalichai — 36.59°N, 58.69°EDalichai — 37.38°N, 56.69°ERosso Ammonitiko — 38.00°N, 12.00°ERosse Ammonitico — 38.00°N, 12.00°EL'Ammonitico Rosso Inférieur — 35.68°N, 0.92°WL'Ammonitico Rosso Supérieur — 35.68°N, 0.92°WYatova — 40.98°N, 0.62°WGerpigem- Mezmayskaya — 44.13°N, 40.80°E

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The named rock units Sowerbyceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 42 occurrences have no formation on record, which is common for older literature.

Sowerbyceras and its relatives

Late Jurassic

Where Sowerbyceras and its relatives were recorded in the Late Jurassic.

Found in the same rock

404 taxa

The Paleobiology Database records 58 sites for Sowerbyceras, 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

16 references

Each of the 62 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. 3 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 Sowerbyceras

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

No 3D scan of Sowerbyceras 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 itPtychophylloceratinae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Parona and Bonarelli 1895)