Helicidae
Helicidae is a large, diverse family of western Palaearctic, medium to large-sized, air-breathing land snails, sometimes called the "typical snails." It includes some of the largest European land snails, several species are common in anthropogenic habitats, and some became invasive on other continents. A number of species in this family are valued as food items, including Cornu aspersum the brown or garden snail, and Helix pomatia. The biologies of these two species in particular have been thoroughly studied and documented.

Ondrej.korabek · CC BY-SA 4.0 · 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
- HelicoideaPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 65 million years on record.
The record covers at least 66 Mya to 11.7 ka. No occurrence read is dated outside 72.2 Mya to 0 Mya.
185 occurrences of Helicidae on record, most of them in the Miocene. 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
185 occurrences- Late Cretaceousunder 1%
- Paleoceneunder 1%
- Eocene9%
- Oligocene2%
- Miocene63%
- Pliocene3%
- Pleistocene22%
- Holoceneunder 1%
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
24 formations
- Ober Süßwassermolasse Formation19
- Upper Freshwater Molasse Formation · Molasse Group9
- Bembridge Limestone Formation6
- Lower Freshwater Molasse Formation6
- Kirchberg Formation5
- Randeck Maar Formation4
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The named rock units Helicidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 112 occurrences have no formation on record, which is common for older literature.
Helicidae and its relatives
MioceneWhere Helicidae and its relatives were recorded in the Miocene.
Found in the same rock
1,866 taxa- Helix28 sites
- Cepaea22 sites
- Pseudochloritis incrassata22 sites
- Ophisaurus19 sites
- Planorbarius cornu19 sites
- Lymnaea dilatata18 sites
- Palaeotachea silvana17 sites
- Lacerta16 sites
- Limax15 sites
- Testudo15 sites
- Unio14 sites
- Prolagus oeningensis13 sites
- Aves11 sites
- Democricetodon mutilus11 sites
- Galba dupuyiana11 sites
- Bithynia10 sites
- Gastrocopta acuminata10 sites
- Gastrocopta nouletiana10 sites
- Margaritifera flabellata10 sites
- Megacricetodon minor10 sites
- Pomatias10 sites
- Blackia miocaenica9 sites
- Lacertidae9 sites
- Palaeotachea renevieri9 sites
The Paleobiology Database records 110 sites for Helicidae, 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
68 references- The fossil pulmonate snails of Sandelzhausen (Early/Middle Miocene, Germany): Succineidae, Testacelloidea and Helicoidea22
- The fossil continental mollusks in the upper freshwater molasse (Middle Miocene) of the districts of Biberach, Ravensburg and Neu-Ulm, Germany19
- Early Miocene continental gastropods from new localities of the Molasse Basin in southern Germany14
- Terrestrial Gastropoda from the Pleistocene of Beni Saf, NW Algeria12
- On the Tertiary fluvio-marine formation of the Isle of Wight8
- Neue Ergebnisse zur Stratigraphie der mittleren Serie der Oberen Süßwassermolasse Bayerns (New results on the stratigraphy of the middle series of upper Freshwater Molasse, Bavaria)7
- Moluscos continentales del Plio-Pleistoceno de la cuenca de Guadix-Baza7
- A new Late Agenian (MN2a, Early Miocene) fossil assemblage from Wallenried (Molasse Basin, Canton Fribourg, Switzerland)5
- On gigantic land-tortoises and a small freshwater species from the ossiferous caverns of Malta, together with a list of their fossil fauna; and a note on chelonian remains from the rock-cavities of Gibraltar5
- The fossil land and freshwater snails of Oggenhausen (Middle Miocene, Germany)4
- Fossil gastropods from Miocene Lake Randeck Maar and its hinterland (SW Germany)4
- Opole (Poland) - a key locality for middle Miocene terrestrial mollusc faunas3
Each of the 185 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. 56 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 Helicidae
- Source
- Wikipedia/Commons
- Credit
- Ondrej.korabek
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Helicidae 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, “Helicidae”
- 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 itHelicoidea through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1815