Acila (Truncacila) nagaoi
No picture of Acila (Truncacila) nagaoi was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Acila (Truncacila) nagaoi, or no answer at all. This entry cannot say which.
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 11 million years on record.
Every occurrence read is dated to somewhere between 37.71 Mya and 27.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Acila (Truncacila) nagaoi on record, most of them in the Eocene. 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 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
2 formations
- Maéjima Formation3
- Kishima Formation · Kishima Group1
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The named rock units Acila (Truncacila) nagaoi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Acila (Truncacila) nagaoi and its relatives
EoceneWhere Acila (Truncacila) nagaoi and its relatives were recorded in the Eocene.
Found in the same rock
46 taxa- ? Eopheurotoma aff. higoensis1 site
- Ancilla (Turrancilla)1 site
- Angulus1 site
- Antalis1 site
- Athleta (Volutospina) japonica1 site
- Callista1 site
- Calypteraea sp.1 site
- Carcharhinus1 site
- Carcharodon hastalis1 site
- Chlamys (Mimachlamys)1 site
- Clathrus1 site
- Cornusolea fudoujii1 site
- Crassatellites matsuraensis1 site
- Creseis kishimaensis1 site
- Cyclina compressa1 site
- Cyclocardia yoshidai1 site
- Decapoda1 site
- Fulgoraria (Psephaea)1 site
- Fulvia1 site
- Gemmula1 site
- Gymnogobius oligocenicus1 site
- Heliconoides hospes1 site
- Limacina conica1 site
- Limacina karasawai1 site
The Paleobiology Database records 1 site for Acila (Truncacila) nagaoi, 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
2 references- Molluscan fauna of the "Miocene" Maéjima Formation in Maéjima Island, Okayama Prefecture, southwest Japan3
- An Early Oligocene fish-fauna from Japan reconstructed from otoliths1
Each of the 4 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Acila (Truncacila) nagaoi was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Acila (Truncacila) nagaoi, or no answer at all. This entry cannot say which.
No 3D scan of Acila (Truncacila) nagaoi 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.
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 EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Oyama and Mizuno 1958)