Cymbophora

via iDigBio · CC0 · via iDigBio. 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
- MactrinaePBDB
- Diet
- suspension feederPBDB, for Mactridae
- Life habit
- infaunalPBDB, for Mactridae
- Motility
- facultatively mobilePBDB, for Mactridae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 110 million years on record.
The record covers at least 110.1 Mya to 11.7 ka. No occurrence read is dated outside 113.2 Mya to 0 Mya.
716 occurrences of Cymbophora on record, most of them in the Late Cretaceous. 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
716 occurrences- Early Cretaceousunder 1%
- Late Cretaceous100%
- Eoceneunder 1%
- 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
63 formations
- Providence Formation96
- Corsicana Marl Formation52
- Escondido Formation50
- Woodbine Formation50
- Nacatoch Sand Formation · Navarro Group36
- Prairie Bluff Formation · Selma Group24
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The named rock units Cymbophora has been recovered from, largest first. Drawn where the rock is now, not where it formed. 39 further formations hold fewer occurrences each and are not listed. 83 occurrences have no formation on record, which is common for older literature.
Cymbophora and its relatives
Late CretaceousWhere Cymbophora and its relatives were recorded in the Late Cretaceous.
Found in the same rock
775 taxa- Syncyclonema143 sites
- Nuculana138 sites
- Anomia argentaria137 sites
- Striarca121 sites
- Crenella serica110 sites
- Crassatella vadosa107 sites
- Cyprimeria100 sites
- Camptonectes bubonis96 sites
- Cubitostrea tecticosta94 sites
- Vertebrata94 sites
- Veniella conradi90 sites
- Exogyra (Exogyra) costata87 sites
- Granocardium86 sites
- Caestocorbula (Caestocorbula) crassaplica83 sites
- Corbula83 sites
- Linearis83 sites
- Nucula percrassa79 sites
- Vetericardiella78 sites
- Euspira rectilabrum77 sites
- Nemodon eufaulensis77 sites
- Nymphalucina linearia77 sites
- Hamulus onyx75 sites
- Turritella bilira75 sites
- Serpula74 sites
The Paleobiology Database records 521 sites for Cymbophora, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
58 references- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf99
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain94
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain71
- Unpublished data on Cretaceous-Paleocene molluscan assemblages70
- Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas51
- Described or figured West Coast species of Cymbophora37
- The larger invertebrate fossils of the Navarro group of Texas37
- Map and checklists of Jurassic and Cretaceous macrofossil localities within the San Jose 1:100,000 Quadrangle, California, and discussion of paleontological results32
- Mollusca from the upper Cretaceous Jalama Formation, Santa Barbara County, California22
- Paleontology of the Greenhorn cylcothem (Cretaceous: late Cenomanian to middle Turonian) at Black Mesa, northeastern Arizona17
- Upper Cretaceous formations and faunas of southern California16
- Geology of the Southern Alberta Plains. Part II. Paleontology of the marine formations of the Montana Group16
Each of the 716 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. 46 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 Cymbophora
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMactrinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1869)