Siphonaria
Siphonaria is a genus of air-breathing sea snails in the family Siphonariidae. They are globally distributed living in temperate to tropical benthic intertidal zones making up a significant component of invertebrate fauna in those regions. There are many species within this genus although the exact amount is unknown due to their large variety in shell morphology.

Iranshahi.Amir Ali · CC0 · 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
- SiphonariidaePBDB
- Diet
- grazerPBDB, for Siphonariidae
- Life habit
- epifaunalPBDB, for Siphonariidae
- Motility
- facultatively mobile, attachedPBDB, for Siphonariidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 72 million years on record.
The record covers at least 72.2 Mya to 11.7 ka. No occurrence read is dated outside 83.6 Mya to 0 Mya.
42 occurrences of Siphonaria 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
42 occurrences- Late Cretaceous7%
- Paleocene5%
- Oligocene2%
- Miocene14%
- Pliocene10%
- Pleistocene56%
- Holocene5%
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
19 formations
- Unnamed Formation3
- Varswater Formation · Sandveld Group2
- Devonshire Formation2
- Belmont Formation2
- Spencer's Point Formation2
- Falun de Saucats Formation2
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The named rock units Siphonaria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.
Siphonaria and its relatives
PleistoceneWhere Siphonaria and its relatives were recorded in the Pleistocene.
Found in the same rock
2,044 taxa- Cerithiopsis8 sites
- Glycymeris8 sites
- Arca7 sites
- Turritella7 sites
- Conus6 sites
- Mathilda6 sites
- Patella6 sites
- Rissoina6 sites
- Tellina6 sites
- Acteon5 sites
- Architectonica5 sites
- Barbatia5 sites
- Cancellaria5 sites
- Cerithiella5 sites
- Cerithium5 sites
- Dentalium5 sites
- Fusus5 sites
- Hipponix5 sites
- Natica5 sites
- Nerita5 sites
- Nucula5 sites
- Nuculana5 sites
- Pinna5 sites
- Ringicula5 sites
The Paleobiology Database records 19 sites for Siphonaria, 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
27 references- The marine Pleistocene mollusks of Bermuda6
- Geology of San Nicolas Island, California3
- Revised list of South African late Tertiary and Pleistocene marine Mollusca3
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals2
- Paleoenvironmental and paleobiogeographical implications of a Middle Pleistocene mollusc assemblage from the marine terraces of Baía das Pipas, southwest Angola2
- Lower to Middle Miocene Mollusc assemblages from the Torino Hills (NW Italy): Synthesis of new data and chronostratigraphical arrangement2
- Révision des Gastropoda (Mollusca) du stratotype de L'Aquitanien (Miocéne inf.) site de Saucats "Lariey", Gironde, France2
- Paleoecologia de moluscos marinos del Holoceno medio de Isla Gable, Canal Beagle, Tierra del Fuego, Argentina2
- Pleistocene shorelines in the Western Cape and South-West Africa2
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel1
- Paleoenvrionments and paleoclimates of the Quaternary molluscan faunas from the coastal area of Bahía Vera-Camarones (Chubut, Patagonia)1
- Milankovitch 41 000-year cycles in lithofaciesa and molluscan content in the tropical Middle Miocene Nyalindung Formation, Jawa, Indonesia1
Each of the 42 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. 15 further references are not listed. 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 Siphonaria
- Source
- Wikipedia/Commons
- Credit
- Iranshahi.Amir Ali
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Siphonaria was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Siphonaria”
- 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 itSiphonariidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Sowerby 1824