Cardiida
Cardiida is an order of bivalves belonging to the class Bivalvia.

Hans Hillewaert · 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
- ImparidentiaPBDB
- Diet
- suspension feederPBDB, for Bivalvia
- Life habit
- infaunalPBDB, for Bivalvia
- Motility
- facultatively mobilePBDB, for Bivalvia
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 430 million years on record.
The record covers at least 430.6 Mya to 11.7 ka. No occurrence read is dated outside 432.9 Mya to 0 Mya.
12,000+ occurrences of Cardiida 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%
- Permian2%
- Early Triassic1%
- Middle Triassicunder 1%
- Late Triassic3%
- Early Jurassic2%
- Middle Jurassic3%
- Late Jurassic4%
- Early Cretaceous3%
- Late Cretaceous17%
- Paleocene2%
- Eocene9%
- Oligocene7%
- Miocene22%
- Pliocene9%
- Pleistocene12%
- Holocene2%
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 1011 formations
- Providence Formation379
- Gatun Formation195
- Chipola Formation · Alum Bluff Group170
- Prairie Bluff Formation · Selma Group151
- Shoal River Formation · Alum Bluff Group133
- Byram Formation · Vicksburg Group129
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The named rock units Cardiida 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. 987 further formations hold fewer occurrences each and are not listed. 2,289 occurrences have no formation on record, which is common for older literature.
Found in the same rock
1,472 taxa- Nuculana64 sites
- Modiolus44 sites
- Camptonectes43 sites
- Pycnodonte vesicularis41 sites
- Astarte40 sites
- Protocardia striatula40 sites
- Ammonoidea39 sites
- Nucula39 sites
- Entolium orbiculare37 sites
- Granocardium37 sites
- Pinna35 sites
- Gastropoda34 sites
- Cyprimeria33 sites
- Dentalium33 sites
- Inoceramus33 sites
- Isognomon33 sites
- Pholadomya33 sites
- Aphrodina31 sites
- Panopea31 sites
- Buchia mosquensis30 sites
- Cymbophora30 sites
- Belemnitida29 sites
- Bivalvia29 sites
- Grammatodon29 sites
The Paleobiology Database records at least 861 sites for Cardiida, 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
at least 948 references- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions447
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain414
- Unpublished data on Cretaceous-Paleocene molluscan assemblages359
- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae).321
- The Molluscan Fauna of the Alum Bluff Group of Florida316
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf304
- Unpublished data255
- Biostratigraphie et paleoecologie des gisements types du Stampian de la region d''Etampes (Essonne)209
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain200
- Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America199
- Miocene and Pliocene mollusks from Trinidad188
- Die Fauna des marinen Miozäns von Kevelaer (Niederrhein). Band 2 Bivalvia, Scaphopoda, Cephalopoda, Bryozoa, Annelida, Brachiopoda172
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. 936 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 Cardiida
- Source
- Wikipedia/Commons
- Credit
- Hans Hillewaert
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Cardiida 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, “Cardiida”
- 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 itImparidentia through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ferussac 1822