Gastrochaena
Gastrochaena is a genus of saltwater clams, marine bivalve molluscs in the family Gastrochaenidae. The type species of this genus is Gastrochaena cuneiformis.

FWC Fish and Wildlife Research Institute · CC BY 2.0 · 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
- GastrochaenidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- boringPBDB
- Motility
- stationaryPBDB
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 251 million years on record.
The record covers at least 251.902 Mya to 129 ka. No occurrence read is dated outside 254.14 Mya to 0 Mya.
169 occurrences of Gastrochaena on record, most of them in the Miocene. 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
169 occurrences- Permianunder 1%
- Late Jurassic8%
- Early Cretaceous10%
- Late Cretaceous13%
- Paleocene5%
- Eocene17%
- Oligocene2%
- Miocene25%
- Pliocene11%
- Pleistocene9%
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
66 formations
- Moodys Branch Formation · Jackson Group5
- Vuache Formation4
- Caloosahatchee Formation4
- Chipola Formation · Alum Bluff Group4
- Selsey Formation · Bracklesham Group3
- Bowden Formation · Coastal Group3
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The named rock units Gastrochaena has been recovered from, largest first. Drawn where the rock is now, not where it formed. 42 further formations hold fewer occurrences each and are not listed. 68 occurrences have no formation on record, which is common for older literature.
Gastrochaena and its relatives
MioceneWhere Gastrochaena and its relatives were recorded in the Miocene.
Found in the same rock
2,624 taxa- Arca15 sites
- Lithophaga13 sites
- Natica12 sites
- Nuculana12 sites
- Barbatia11 sites
- Chlamys11 sites
- Nucula11 sites
- Panopea11 sites
- Cardita10 sites
- Cardium10 sites
- Spondylus10 sites
- Turbo10 sites
- Turritella10 sites
- Anomia9 sites
- Cerithium9 sites
- Crassatella9 sites
- Glycymeris9 sites
- Limopsis9 sites
- Pholadomya9 sites
- Acar8 sites
- Astarte8 sites
- Cerithiopsis8 sites
- Fusus8 sites
- Lucina8 sites
The Paleobiology Database records 118 sites for Gastrochaena, and this reads all 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
89 references- Yanakevich, 197715
- Jura Vaudois et Neuchatelois12
- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda10
- Unpublished data on Cretaceous-Paleocene molluscan assemblages5
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions4
- Middle Miocene bivalve faunas from the carbonate deposits of Poland (Central Paratethys)4
- New Eocene Gastrochaenids (Bivalvia) from the Ukraine4
- Boring and nestling organisms from upper Jurassic coral colonies from northern Poland4
- The Neogene Bivalvia (Heterodonta and Anomalodesmata) and Scaphopoda from Kallo and Doel (Oost Vlaanderen, Belgium)3
- Facies and palaeoecology of Upper Jurassic (Middle Oxfordian) coral reefs in England3
- Distribution of Mollusca in Units S1 to S9 of the Selsey Formation (middle Lutetian), Selsey Peninsula, West Sussex3
- Notes on the fauna of the Chipola Formation - XIX. On the presence of Gastrochaena (Spengleria) (Mollusca: Bivalvia)3
Each of the 169 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. 77 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 content2
Picture of Gastrochaena
- Source
- Wikipedia/Commons
- Credit
- FWC Fish and Wildlife Research Institute
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Gastrochaena cuneiformis · usnm:invertebrate zoology:94475
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
- 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 itGastrochaenidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Spengler 1783