Cassis
Searched as Cassis togata soldadensis. The Paleobiology Database treats Cassis as the accepted name.
Cassis, common name the helmet shells, is a genus of very large sea snails, marine gastropod mollusks in the family Cassidae, the helmet shells and their allies. This is the type genus of the subfamily Cassinae.

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
- CassinaePBDB
- Diet
- carnivorePBDB, for Cassidae
- Life habit
- epifaunalPBDB, for Cassidae
- Motility
- actively mobilePBDB, for Cassidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 3.3 million years on record.
The one occurrence read is dated to somewhere between 59.24 Mya and 56 Mya, which is a dating window rather than a span.
1 occurrence of Cassis on record, most of them in the Paleocene. 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
1 occurrences- Paleocene100%
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
1 formation
Loading coastlines…
The named rock units Cassis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cassis and its relatives
PaleoceneWhere Cassis and its relatives were recorded in the Paleocene.
Found in the same rock
2,513 taxa- Turritella20 sites
- Ficus16 sites
- Chlamys15 sites
- Spondylus bostrychites15 sites
- Architectonica13 sites
- Conus13 sites
- Hipponix13 sites
- Cadulus11 sites
- Siphonalia11 sites
- Xenophora11 sites
- Bullata semen10 sites
- Cerithium10 sites
- Lunulitidae10 sites
- Lyria (Lyria) pulchella10 sites
- Microdrillia10 sites
- Naticidae10 sites
- Prunum coniforme10 sites
- Pyramidella10 sites
- Retusa galba10 sites
- Tellina10 sites
- Acteon9 sites
- Athleta petrosa9 sites
- Chicoreus (Triplex) cornurectus9 sites
- Cubitostrea sellaeformis9 sites
The Paleobiology Database records 108 sites for Cassis, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
1 referenceEach of the 1 occurrence 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 content3
Picture of Cassis
- Source
- Wikipedia/Commons
- Credit
- Didier Descouens
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Photogrammetry
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Cassis flammea · UF:Invertebrate Zoology:121323-Mollusca
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 itCassinae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Scopoli 1777