Rissoa ventricosa
Rissoa ventricosa is a species of small sea snail, a marine gastropod mollusc or micromollusc in the family Rissoidae.

H. Zell · 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
- RissoaPBDB
- Diet
- grazerPBDB, for Rissoidae
- Life habit
- epifaunalPBDB, for Rissoidae
- Motility
- actively mobilePBDB, for Rissoidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 762 thousand years on record.
The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.
4 occurrences of Rissoa ventricosa on record, most of them in the Pleistocene. 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- Pleistocene50%
- Holocene50%
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 Rissoa ventricosa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Rissoa ventricosa and its relatives
PleistoceneWhere Rissoa ventricosa and its relatives were recorded in the Pleistocene.
Found in the same rock
241 taxa- Aurila3 sites
- Loxoconcha3 sites
- Abra (Abra) prismatica2 sites
- Ammonia2 sites
- Anomia ephippium2 sites
- Arca noae2 sites
- Bittium2 sites
- Bittium reticulatum2 sites
- Carinocythereis2 sites
- Cibicides2 sites
- Cibicides lobatulus2 sites
- Cyprideis2 sites
- Cythara (Mangelia)2 sites
- Divaricella2 sites
- Flexopecten2 sites
- Gibbula2 sites
- Jujubinus exasperatus2 sites
- Loripes orbiculatus2 sites
- Nassarius2 sites
- Nucula (Nucula) nucleus2 sites
- Parvicardium exiguum2 sites
- Plagiocardium (Papillicardium) papillosum2 sites
- Planorbulina mediterranensis2 sites
- Pontocythere2 sites
The Paleobiology Database records 3 sites for Rissoa ventricosa, 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- L'environnement côtier des Alpes-Maritimes à la fin de la transgression versilienne d'après l'étude biostratigraphique du site de l'Etoile à Nice (France)2
- Seagrass-Associated Molluscan and Fish Communities from the Early Pleistocene of the Island of Rhodes (Greece)1
- Recherches sur le Neogene et le Quaternaire marins de la cote Atlantique du Maroc1
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. 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 Rissoa ventricosa
- Source
- Wikipedia/Commons
- Credit
- H. Zell
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Rissoa ventricosa was found in Smithsonian Open Access and Sketchfab.
MorphoSource 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 itRissoa through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Desmarest 1826