Cassis tuberosa
Cassis tuberosa, the king helmet, is a species of very large sea snail with a solid, heavy shell, a marine gastropod mollusc in the family Cassidae, the helmet shells and their allies.

Thelma Dias · 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
- 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 1.7 million years on record.
The record covers at least 5.333 Mya to 3.6 Mya. No occurrence read is dated outside 11.63 Mya to 2.58 Mya.
2 occurrences of Cassis tuberosa on record. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
2 occurrencesThese 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
1 formation
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The named rock units Cassis tuberosa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Found in the same rock
82 taxa- Amusium1 site
- Anadara (Anadara)1 site
- Anadara (Anadara) thauma1 site
- Anadara (Rasia) springvalensis1 site
- Anomia simplex1 site
- Antigona (Dosina) mauryae1 site
- Antillophos1 site
- Architectonica nobilis1 site
- Argopecten demiurgus1 site
- Byssoarca zebra1 site
- Calyptraea1 site
- Calyptraea centralis1 site
- Chione (Chione) springvalensis1 site
- Chlamys (Plagioctenium) reedsi1 site
- Clementia (Clementia) dariena1 site
- Conus (Dendroconus) maga1 site
- Conus (Leptoconus) medialira1 site
- Conus (Lithoconus) couvaensis1 site
- Corbula (Caryocorbula)1 site
- Crassinella guppyi1 site
- Crenella decussata1 site
- Crepidula fornicata1 site
- Cucullaria1 site
- Dosinia (Dosinia) ponderosa titan1 site
The Paleobiology Database records 1 site for Cassis tuberosa, 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
2 references- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel1
- Upper Miocene Mollusca from Springvale, Trinidad, British West Indies1
Each of the 2 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Cassis tuberosa
- Source
- Wikipedia/Commons
- Credit
- Thelma Dias
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Cassis tuberosa 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 timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)