Barnea (Umitakea)
No picture of Barnea (Umitakea) 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 Barnea (Umitakea), or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- BarneaPBDB
- Diet
- suspension feederPBDB, for Pholadidae
- Life habit
- boringPBDB, for Pholadidae
- Motility
- stationaryPBDB, for Pholadidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 2.6 million years on record.
Every occurrence read is dated to somewhere between 2.58 Mya and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Barnea (Umitakea) 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
3 occurrences- Pleistocene100%
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
- Akasawa Silt Formation · Toyohashi Group1
- Toshima Sand Formation · Toyohashi Group1
- Sakishima Formation1
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The named rock units Barnea (Umitakea) has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Barnea (Umitakea) and its relatives
PleistoceneWhere Barnea (Umitakea) and its relatives were recorded in the Pleistocene.
Found in the same rock
230 taxa- Batillaria3 sites
- Dosinia (Dosinella)3 sites
- Fulvia mutica3 sites
- Glossaulax didyma3 sites
- Scapharca broughtoni3 sites
- Acrosterigma (Vasticardium)2 sites
- Actaeopyramis2 sites
- Anadara2 sites
- Anisodonta2 sites
- Arcopsis symmetrica2 sites
- Babylonia japonica2 sites
- Cardita2 sites
- Cerithidea (Cerithideopsilla)2 sites
- Chama reflexa2 sites
- Corbicula japonica sandaiformis2 sites
- Corbula (Anisocorbula)2 sites
- Cryptomya2 sites
- Cryptonatica andoi2 sites
- Dentalium2 sites
- Dinocardium2 sites
- Ergaea walshi2 sites
- Inquisitor2 sites
- Macoma (Macoma)2 sites
- Mitrella2 sites
The Paleobiology Database records 3 sites for Barnea (Umitakea), 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- Summary of the geology and paleontology of the Atsumi Peninsula, Aichi Prefecture, Japan2
- Pleistocene molluscan fauna of the Sakishima Formation, Shima Peninsula, central Japan1
Each of the 3 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 content1
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
No picture of Barnea (Umitakea) 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 Barnea (Umitakea), or no answer at all. This entry cannot say which.
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 itBarnea through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Habe 1952)