Kosmoceras spinosum

Kosmoceras is a moderately evolute ammonite genus from the upper Callovian of Europe with a simple aperture and irregular ribbing interrupted by an irregular row of lateral tubercles. Strong ventral tubercles are separated by a smooth depression running along the rim.

Kosmoceras spinosum

Ag.Ent · 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
KosmocerasPBDB
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 6.3 million years on record.

Every occurrence read is dated to somewhere between 165.3 Mya and 159 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Jurassic — about 13 of 15 occurrencesMiddle JurassicLate Jurassic — about 2 of 15 occurrencesLate Jurassic165–165 Mya — about 0.8 occurrences165–165 Mya — about 0.8 occurrences165–165 Mya — about 0.8 occurrences165–164 Mya — about 0.8 occurrences164–164 Mya — about 0.8 occurrences164–164 Mya — about 0.8 occurrences164–164 Mya — about 0.8 occurrences164–163 Mya — about 0.8 occurrences163–163 Mya — about 0.8 occurrences163–163 Mya — about 0.8 occurrences163–163 Mya — about 0.8 occurrences163–162 Mya — about 0.8 occurrences162–162 Mya — about 0.8 occurrences162–162 Mya — about 0.8 occurrences162–162 Mya — about 0.8 occurrences162–161 Mya — about 0.6 occurrences161–161 Mya — about 0.2 occurrences161–161 Mya — about 0.2 occurrences161–161 Mya — about 0.2 occurrences161–160 Mya — about 0.2 occurrences160–160 Mya — about 0.2 occurrences160–160 Mya — about 0.2 occurrences160–160 Mya — about 0.2 occurrences160–159 Mya — about 0.2 occurrences159–159 Mya — about 0.2 occurrences159–159 Mya — about 0.2 occurrences165.8 Mya158.5 Mya

15 occurrences of Kosmoceras spinosum 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

15 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

3 formations

Staffin Shale — 57.65°N, 6.24°W"Sengenthal" — 49.23°N, 11.47°EChinitna — 59.66°N, 153.40°W

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The named rock units Kosmoceras spinosum 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.

Kosmoceras spinosum and its relatives

Middle Jurassic

Where Kosmoceras spinosum and its relatives were recorded in the Middle Jurassic.

Found in the same rock

124 taxa

The Paleobiology Database records 15 sites for Kosmoceras spinosum, 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

6 references

Each of the 15 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 Kosmoceras spinosum

Credit
Ag.Ent
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Kosmoceras spinosum was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itKosmoceras through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1826)