Ancylus fluviatilis
The river limpet is a species of very small, freshwater, air-breathing limpet, an aquatic pulmonate gastropod mollusk in the tribe Ancylini within the family Planorbidae, the ram's horn snails and their allies.

Mauro Mariani at Italian Wikipedia · Public Domain · 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
- AncylusPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
- Environment
- freshwaterPBDB, for Planorbidae
Time the record covers
At most 5.4 million years on record.
Every occurrence read is dated to somewhere between 5.333 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Ancylus fluviatilis 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
5 occurrences- Pliocene21%
- Pleistocene59%
- Holocene20%
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.
Ancylus fluviatilis and its relatives
PleistoceneWhere Ancylus fluviatilis and its relatives were recorded in the Pleistocene.
Found in the same rock
103 taxa- Vertigo4 sites
- Anisus3 sites
- Pisidium3 sites
- Carychium minimum2 sites
- Galba truncatula2 sites
- Gyraulus2 sites
- Helicella sp.2 sites
- Lymnaea peregra2 sites
- Prososthenia2 sites
- Pupilla muscorum2 sites
- Vallonia pulchella2 sites
- ? Retinella sp.1 site
- Abra (Abra) prismatica1 site
- Abra alba1 site
- Acanthinula1 site
- Acanthocardia paucicostata1 site
- Acroloxus1 site
- Aegialia (Psammoporus) sabuleti1 site
- Alvania (Turbona)1 site
- Amphibia1 site
- Anomia ephippium1 site
- Anthoceros1 site
- Apicularia similis1 site
- Arca noae1 site
The Paleobiology Database records 5 sites for Ancylus fluviatilis, 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
4 references- Moluscos continentales del Plio-Pleistoceno de la cuenca de Guadix-Baza2
- Le gisement pleistocene de Morgadinho, en Algarve1
- 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)1
- A Late Pleistocene fauna and flora from Upton Warren, Worcestershire1
Each of the 5 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 content2
Picture of Ancylus fluviatilis
- Source
- Wikipedia/Commons
- Credit
- Mauro Mariani at Italian Wikipedia
- Licence
- Public Domain
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Ancylus fluviatilis · SMF:384699
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 itAncylus through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Müller 1774