Mya (Mya) truncata

Alexander Pomfret · CC BY-NC 4.0 · via GBIF. 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- Also called
- truncate softshellPBDB
- Sits inside
- Mya (Mya)PBDB
- Diet
- suspension feederPBDB, for Myidae
- Life habit
- infaunalPBDB, for Myidae
- Motility
- facultatively mobilePBDB, for Myidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 33 million years on record.
The record covers at least 33.9 Mya to 11.7 ka. No occurrence read is dated outside 37.71 Mya to 0 Mya.
187 occurrences of Mya (Mya) truncata on record, most of them in the Pleistocene. 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
187 occurrencesThese 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
37 formations
- Tachilni Formation11
- Presumpscot Formation7
- Lillo Formation5
- Champlain Clay Formation4
- Poul Creek Formation4
- Timms Point Silt Formation4
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The named rock units Mya (Mya) truncata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 further formations hold fewer occurrences each and are not listed. 113 occurrences have no formation on record, which is common for older literature.
Mya (Mya) truncata and its relatives
PleistoceneWhere Mya (Mya) truncata and its relatives were recorded in the Pleistocene.
Found in the same rock
898 taxa- Hiatella arctica43 sites
- Macoma (Macoma) calcarea30 sites
- Mytilus edulis20 sites
- Clinocardium (Ciliatocardium) ciliatum17 sites
- Serripes (Serripes) groenlandicus15 sites
- Astarte borealis14 sites
- Buccinum13 sites
- Chlamys (Chlamys) islandica13 sites
- Cryptonatica affinis13 sites
- Astarte montagui11 sites
- Buccinum undatum11 sites
- Balanus10 sites
- Macoma9 sites
- Nuculana pernula9 sites
- Panopea9 sites
- Arctica islandica8 sites
- Astarte elliptica8 sites
- Balanus crenatus8 sites
- Portlandia arctica8 sites
- Spisula8 sites
- Yoldia (Cnesterium) aeolica8 sites
- Boreotrophon clathratus7 sites
- Mactromeris polynyma7 sites
- Mya (Arenomya) arenaria7 sites
The Paleobiology Database records 83 sites for Mya (Mya) truncata, 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
44 references- Quaternary marine stratigraphy and geochronology in central West Greenland36
- Studies on the marine Pleistocene: Part II. The marine Pleistocene mollusks of eastern North America31
- Contributions to the Quaternary geology of northern West Greenland especially the raised marine deposits14
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions11
- Molluscan paleontology, paleoecology, and North Pacific correlations of the Miocene Tachilni Formation, Alaska Peninsula, Alaska11
- Late Quaternary Marine Fossils from Frobisher Bay (Baffin Island, N.W.T. Canada)7
- The Neogene Bivalvia (Heterodonta and Anomalodesmata) and Scaphopoda from Kallo and Doel (Oost Vlaanderen, Belgium)5
- Late quaternary history of Washington land, North Greenland5
- Fauna of the Poul and Yakataga Formations (Upper Oligocene) of Southern Alaska5
- Wood, 18505
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast.4
- Palaeoenvironmental interpretation of Late Quaternary marine molluscan assemblages, Canadian Arctic achipelago4
Each of the 187 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. 32 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 Mya (Mya) truncata
- Source
- GBIF
- Credit
- Alexander Pomfret
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No repository was searched for a 3D scan: the genus name is too short to search on without matching most of the record.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMya (Mya) through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)