Acila (Truncacila) muta

via GBIF · CC BY 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- Sits inside
- Acila (Truncacila)PBDB
- Diet
- deposit feeder, suspension feederPBDB, for Nuculidae
- Life habit
- infaunalPBDB, for Nuculidae
- Motility
- facultatively mobilePBDB, for Nuculidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculidae
Time the record covers
At most 4.3 million years on record.
Every occurrence read is dated to somewhere between 27.3 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
8 occurrences of Acila (Truncacila) muta on record, most of them in the Oligocene. 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
8 occurrences- Oligocene100%
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
3 formations
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The named rock units Acila (Truncacila) muta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Acila (Truncacila) muta and its relatives
OligoceneWhere Acila (Truncacila) muta and its relatives were recorded in the Oligocene.
Found in the same rock
62 taxa- Lucinoma acutilineata5 sites
- Macoma (Psammacoma) arctata4 sites
- Amiantis mathewsoni3 sites
- Clementia (Egesta) pertenuis3 sites
- Dosinia (Dosinia) whitneyi3 sites
- Here excavata3 sites
- Mactromeris albaria3 sites
- Solena (Plectosolen) gravidus3 sites
- Vertipecten alexclarki3 sites
- Amiantis2 sites
- Anadara (Anadara) submontereyana2 sites
- Bruclarkia seattlensis2 sites
- Calyptraea diegoana2 sites
- Felaniella (Felaniella) harfordi2 sites
- Mactromeris ramonensis2 sites
- Mactromeris rushi2 sites
- Miltha (Miltha) sanctaecrucis2 sites
- Panopea ramonensis2 sites
- Pitaria (Katherinella) californica2 sites
- Psammotreta (Leporimetis) rostellata2 sites
- Pycnodonte (Pycnodonte) ynezana2 sites
- Siphonalia2 sites
- Acrilla (Undiscala) olympicensis1 site
- Agasoma acuminatum1 site
The Paleobiology Database records 6 sites for Acila (Truncacila) muta, 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
4 references- Oligocene molluscan biostratigraphy and paleontology of the Lower Part of the type Temblor Formation, California4
- The San Lorenzo series of Middle California. a stratigraphic and paleontologic study of the San Lorenzo Oligocene series of the general region of Mount Diablo, California2
- Megafaunal zones of the Oligocene of northwestern Washington1
- Pelecypoda from the Marine Oligocene of Western North America1
Each of the 8 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. 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 Acila (Truncacila) muta
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAcila (Truncacila) through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Clark 1918)