Yoldia sagittalia
No picture of Yoldia sagittalia was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Yoldia sagittalia, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- YoldiaPBDB
- Diet
- deposit feederPBDB, for Yoldia
- Life habit
- infaunalPBDB, for Yoldia
- Motility
- facultatively mobilePBDB, for Yoldia
- Vision
- blindPBDB, for Bivalvia
- Environment
- inner shelf,outer shelf,oceanicPBDB, for Yoldiidae
Time the record covers
At most 7.1 million years on record.
Every occurrence read is dated to somewhere between 23.04 Mya and 15.98 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Yoldia sagittalia on record, most of them in the Miocene. 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 occurrences- Miocene100%
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
- Arakida Formation · Tomikusa Group2
- Tokmuro Formation1
- Tokomuro Formation1
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The named rock units Yoldia sagittalia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Yoldia sagittalia and its relatives
MioceneWhere Yoldia sagittalia and its relatives were recorded in the Miocene.
Found in the same rock
The Paleobiology Database records no fossil sites for Yoldia sagittalia, so there is nothing to compare it with.
Entered from
3 references- Cephalopod fossil from the miocene Tomikusa Group in the southern part of Nagano Prefecture, central Japan2
- Paleogene molluscan faunas from the Kushiro Coal Field, Eastern Hokkaido1
- Molluscan fossils from the Atsunai Group, Kushiro Coal Field, Eastern Hokkaido, Northern Japan1
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 Yoldia sagittalia was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Yoldia sagittalia, or no answer at all. This entry cannot say which.
No 3D scan of Yoldia sagittalia was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itYoldia through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Yokoyama 1925