Carditidae
Carditidae is a family of marine bivalve clams of the order Carditida, which was long included in the Venerida. They are the type taxon of the superfamily Carditoidea.

W.H.Baily · Public Domain · 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
- CrassatelloideaPBDB
- Diet
- suspension feederPBDB
- Life habit
- infaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Crassatelloidea
- Environment
- marinePBDB, for Crassatelloidea
Time the record covers
At least 246 million years on record.
The record covers at least 247 Mya to 11.7 ka. No occurrence read is dated outside 248.6 Mya to 0 Mya.
4,402 occurrences of Carditidae on record, most of them in the Eocene. 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
4,402 occurrences- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassic2%
- Early Jurassic1%
- Late Jurassicunder 1%
- Early Cretaceous1%
- Late Cretaceous7%
- Paleocene13%
- Eocene32%
- Oligocene7%
- Miocene18%
- Pliocene8%
- Pleistocene11%
- 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
654 formations
- Kincaid Formation · Midway Group127
- Moodys Branch Formation · Jackson Group120
- Cook Mountain Formation · Claiborne Group84
- Hatchetigbee Bluff Formation · Wilcox Group76
- Gosport Sand Formation · Claiborne Group74
- Lisbon Formation · Claiborne Group69
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The named rock units Carditidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 630 further formations hold fewer occurrences each and are not listed. 742 occurrences have no formation on record, which is common for older literature.
Carditidae and its relatives
EoceneWhere Carditidae and its relatives were recorded in the Eocene.
Found in the same rock
2,266 taxa- Nuculana76 sites
- Turritella68 sites
- Vetericardiella51 sites
- Venericardia49 sites
- Dentalium47 sites
- Eburneopecten scintillatus47 sites
- Granocardium47 sites
- Exogyra (Exogyra) costata45 sites
- Gastropoda42 sites
- Anomia argentaria41 sites
- Bivalvia41 sites
- Bryozoa41 sites
- Crassatella vadosa41 sites
- Pycnodonte vesicularis41 sites
- Veniella conradi40 sites
- Corbula39 sites
- Cucullaea39 sites
- Cymbophora39 sites
- Cyprimeria39 sites
- Syncyclonema39 sites
- Caestocorbula wailesiana36 sites
- Crenella serica36 sites
- Nucula36 sites
- Tellinidae36 sites
The Paleobiology Database records at least 1,359 sites for Carditidae, 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
716 references- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda201
- Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region169
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals146
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast.110
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions95
- Impact of lithification on the diversity, size distribution, and recovery dynamics of marine invertebrate assemblages80
- Molluscs at the K/Pg boundary in Argentina: Extinction and recovery patterns. unpublished Ph.D. thesis77
- Unpublished data on Cretaceous-Paleocene molluscan assemblages68
- Fossil assemblages of a marine transgressive sand, Moody''s Branch Formation (Upper Eocene), Louisiana and Mississippi68
- Depositional dynamics and the record of ecosystem stability: early Eocene faunal gradients in the Pyrenean foreland, Spain60
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of Sakhalin and Kurile Islands53
- The Molluscan Fauna of the Alum Bluff Group of Florida53
Each of the 4,402 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. 704 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 Carditidae
- Source
- Wikipedia/Commons
- Credit
- W.H.Baily
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Carditidae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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, “Carditidae”
- 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 itCrassatelloidea through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Fleming 1820