Cassis cornuta

Cassis cornuta, common name the horned helmet, is a species of extremely large sea snail, a marine gastropod mollusc in the family Cassidae, the helmet shells and their allies.

Cassis cornuta

Didier Descouens · 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
CassisPBDB
Diet
carnivorePBDB, for Cassidae
Life habit
epifaunalPBDB, for Cassidae
Motility
actively mobilePBDB, for Cassidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 15 million years on record.

The record covers at least 15.98 Mya to 129 ka. No occurrence read is dated outside 23.04 Mya to 11.7 ka.

Oligocene — about 0 of 4 occurrencesMiocene — about 2 of 4 occurrencesMiocenePliocene — about 0 of 4 occurrencesPleistocene — about 2 of 4 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.4 Mya — about 0.1 occurrences9.4–8.6 Mya — about 0.1 occurrences8.6–7.8 Mya — about 0.1 occurrences7.8–7.1 Mya — about 0.1 occurrences7.1–6.3 Mya — about 0.1 occurrences6.3–5.5 Mya — about 0.1 occurrences5.5–4.7 Mya — about 0.0 occurrences785 ka–0 Mya — about 2 occurrences15.98 Mya129 ka23.5 Mya0 Mya

4 occurrences of Cassis cornuta on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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

4 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

2 formations

Ryukyu Limestone — 24.38°N, 124.22°ETagpochau Limestone — 15.00°N, 145.63°E

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The named rock units Cassis cornuta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Cassis cornuta and its relatives

Miocene

Where Cassis cornuta and its relatives were recorded in the Miocene.

Found in the same rock

57 taxa

The Paleobiology Database records 1 site for Cassis cornuta, 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

3 references

Each of the 4 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Cassis cornuta

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

No 3D scan of Cassis cornuta 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 itCassis through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)