Caenogastropoda
Caenogastropoda is a taxonomic subclass of molluscs in the class Gastropoda. It is a large diverse group which are mostly sea snails and other marine gastropod mollusks, but also includes some freshwater snails and some land snails. The subclass is the most diverse and ecologically successful of the gastropods.

User:MathKnight and the photographers of the images above · 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
- GastropodaPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 420 million years on record.
The record covers at least 422.7 Mya to 2.58 Mya. No occurrence read is dated outside 426.7 Mya to 11.7 ka.
12,000+ occurrences of Caenogastropoda on record. 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
12,000 occurrences read- Silurianunder 1%
- Devonianunder 1%
- Carboniferousunder 1%
- Permianunder 1%
- Early Jurassicunder 1%
- Middle Jurassicunder 1%
- Late Jurassic3%
- Early Cretaceous4%
- Late Cretaceous50%
- Paleocene6%
- Eocene29%
- Oligocene7%
- Pleistoceneunder 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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.
Found in
at least 210 formations
- Prairie Bluff Formation1,141
- Providence Formation814
- Ripley Formation · Selma Group729
- Lisbon Formation · Claiborne Group605
- Corsicana Marl Formation500
- Cook Mountain Formation428
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The named rock units Caenogastropoda has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 186 further formations hold fewer occurrences each and are not listed. 666 occurrences have no formation on record, which is common for older literature.
Found in the same rock
1,242 taxa- Gastropoda56 sites
- Bivalvia44 sites
- Eburneopecten scintillatus42 sites
- Dentalium39 sites
- Myrtaea (Myrtaea) curta34 sites
- Nuculana34 sites
- Tellinidae34 sites
- Bryozoa32 sites
- Hipponix32 sites
- Caestocorbula wailesiana31 sites
- Corbula densata31 sites
- Venericardia (Rotundicardia) diversidentata30 sites
- Entolium orbiculare29 sites
- Cadulus28 sites
- Calyptraea (Trochita) aperta28 sites
- Alveinus minutus27 sites
- Ammonoidea27 sites
- Kapalmerella alveata27 sites
- Bathytormus flexurus26 sites
- Spisula jacksonensis26 sites
- Buchia mosquensis25 sites
- Callista annexa25 sites
- Corbicula astartoides25 sites
- Nucula (Nucula) sphenopsis25 sites
The Paleobiology Database records at least 357 sites for Caenogastropoda, and this reads 240 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
at least 164 references- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain1,850
- Faunal stability and environmental change in the middle Eocene Gulf Coastal Plain (PhD Thesis, Harvard University)991
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain815
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf812
- Archeogastropoda, Mesogastropoda and stratigraphy of the Ripley, Owl Creek, and Prairie Bluff Formations737
- Lower Oligocene Gastropoda, Scaphopoda, and Cephalopoda of the Vicksburg Group in Mississippi442
- Distribution of Mollusca in Units S1 to S9 of the Selsey Formation (middle Lutetian), Selsey Peninsula, West Sussex363
- The larger invertebrate fossils of the Navarro group of Texas326
- Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas286
- Unpublished data277
- Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region263
- Biostratigraphie et paleoecologie des gisements types du Stampian de la region d''Etampes (Essonne)254
Each of the 12,000 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. That read hit its cap, so each count is a floor. 152 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 Caenogastropoda
- Source
- Wikipedia/Commons
- Credit
- User:MathKnight and the photographers of the images above
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Caenogastropoda 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
- 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 itGastropoda through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cox 1959)