Aversovalva
via iDigBio · CC0 · via iDigBio. 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
- CytheropterinaePBDB
- Diet
- detritivore, grazerPBDB, for Podocopida
- Life habit
- epifaunalPBDB, for Podocopida
- Motility
- actively mobilePBDB, for Ostracoda
- Vision
- limitedPBDB, for Ostracoda
- Environment
- freshwaterPBDB, for Cytheruridae
Time the record covers
At least 28 million years on record.
The record covers at least 66 Mya to 37.71 Mya. No occurrence read is dated outside 72.2 Mya to 33.9 Mya.
6 occurrences of Aversovalva on record, most of them in the Paleocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
6 occurrences- Late Cretaceous17%
- Paleocene50%
- Eocene33%
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
2 formations
Loading coastlines…
The named rock units Aversovalva has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Aversovalva and its relatives
PaleoceneWhere Aversovalva and its relatives were recorded in the Paleocene.
Found in the same rock
133 taxa- Cytherella semicatillus4 sites
- Semicytherura4 sites
- Unicapella4 sites
- Actinocythereis indigena3 sites
- Argilloecia abnormalis3 sites
- Argilloecia hydrodynamicus3 sites
- Castillocythereis multicastrum3 sites
- Cythereis trajectiones3 sites
- Cytherella saraballentae3 sites
- Cytherella terminopunctata3 sites
- Cytheropteron bidentinos3 sites
- Cytheropteron translimitares3 sites
- Eucythere dinetos3 sites
- Huantraiconella costata3 sites
- Huantraiconella prima3 sites
- Keijia huantraicoensis3 sites
- Krithe crepidus3 sites
- Nodoconcha polytorosa3 sites
- Orthrocosta phantasia3 sites
- Paracypris3 sites
- Paracypris bertelsae3 sites
- Paracypris imaguncula3 sites
- Petalocythereis schilleri3 sites
- Trachyleberis weiperti3 sites
The Paleobiology Database records 5 sites for Aversovalva, 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- New genera and species of Ostracoda from the Maastrichtian and Danian of the Neuquén Basin, Argentina4
- Late Eocene Ostracoda (Crustacea) from the Waihao District, South Canterbury, New Zealand2
Each of the 6 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Aversovalva
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Aversovalva 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 itCytheropterinae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.