Corbicula
Corbicula is a genus of freshwater and brackish water clams, aquatic bivalve mollusks in the family Cyrenidae, the basket clams. The genus name is the Neo-Latin diminutive of Latin corbis, a basket, referring to the shape and ribs of the shell.

Yaca2671 · CC BY-SA 3.0 · 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
- CorbiculidaePBDB
- Diet
- suspension feederPBDB, for Corbiculidae
- Life habit
- infaunalPBDB, for Corbiculidae
- Motility
- facultatively mobilePBDB, for Corbiculidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- brackish,freshwaterPBDB, for Corbiculidae
Time the record covers
At least 199 million years on record.
The record covers at least 199.5 Mya to 11.7 ka. No occurrence read is dated outside 201.4 Mya to 0 Mya.
270 occurrences of Corbicula 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
270 occurrences- Early Jurassic1%
- Middle Jurassic2%
- Early Cretaceous1%
- Late Cretaceous22%
- Paleocene15%
- Eocene28%
- Oligocene11%
- Miocene7%
- Pliocene6%
- Pleistocene6%
- Holocene1%
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
94 formations
- Jalama Formation28
- Lefipán Formation23
- Escondido Formation8
- Yubetsu Formation · Urahoro Group8
- Shakubetsu Formation · Urahoro Group8
- Cowlitz Formation6
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The named rock units Corbicula has been recovered from, largest first. Drawn where the rock is now, not where it formed. 70 further formations hold fewer occurrences each and are not listed. 50 occurrences have no formation on record, which is common for older literature.
Corbicula and its relatives
EoceneWhere Corbicula and its relatives were recorded in the Eocene.
Found in the same rock
2,264 taxa- Anomia jalama23 sites
- Ostrea20 sites
- Calva (Calva) varians18 sites
- Glycymerita veatchii17 sites
- Ampullina concipio16 sites
- Popenoella hemphilli16 sites
- Pterotrigonia evansana14 sites
- Terebralia juliana14 sites
- Anomia12 sites
- Crassostrea12 sites
- Legumen ooides12 sites
- Tellina12 sites
- Crassatella11 sites
- Brachidontes10 sites
- Pitar10 sites
- Striarca10 sites
- Acutostrea idriaensis9 sites
- Barbatia9 sites
- Bullamirifica ainiktos9 sites
- Corbula9 sites
- Dentalium9 sites
- Etea occidentalis9 sites
- Glycymeris9 sites
- Crassatella saulae8 sites
The Paleobiology Database records 157 sites for Corbicula, 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
78 references- Mollusca from the upper Cretaceous Jalama Formation, Santa Barbara County, California28
- Molluscs at the K/Pg boundary in Argentina: Extinction and recovery patterns. unpublished Ph.D. thesis23
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast.17
- Tertiary faunal horizons of western Washington17
- Paleogene molluscan faunas from the Kushiro Coal Field, Eastern Hokkaido13
- Summary of the Paleogene molluscan faunas in North Japan12
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of Sakhalin and Kurile Islands11
- A Paleogene molluscan fauna from Hokkaido, northern Japan9
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain8
- Hettangian through Aalenian (Jurassic) guide fossils and biostratigraphy, Northern Yukon and adjacent Northwest Territories7
- Geology of the Alaska Peninsula-island arc and continental margin (Part 1)7
- Skwarko, 19946
Each of the 270 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. 66 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 content3
Picture of Corbicula
- Source
- Wikipedia/Commons
- Credit
- Yaca2671
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Corbicula sp. · ypm:ip:YPM IP 616553
3D model
- Source
- Sketchfab
- Credit
- Shellie Luallin
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
The description on this site
- Source
- Wikipedia, “Corbicula”
- 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 itCorbiculidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Megerle 1811)