Leda alkiensis

via iDigBio · 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
- NuculanaPBDB
- Diet
- deposit feeder, suspension feederPBDB, for Nuculanidae
- Life habit
- infaunalPBDB, for Nuculanidae
- Motility
- facultatively mobilePBDB, for Nuculanidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculanidae
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.
2 occurrences of Leda alkiensis 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
2 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
1 formation
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The named rock units Leda alkiensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Leda alkiensis and its relatives
OligoceneWhere Leda alkiensis and its relatives were recorded in the Oligocene.
Found in the same rock
57 taxa- Conchocele bisecta2 sites
- Acila (Acila) gettysburgensis1 site
- Ancistrolepis clarki1 site
- Ancistrolepis landesi1 site
- Anechinocardium lorenzanum1 site
- Aturia angustata1 site
- Balanophyllia1 site
- Bruclarkia thor1 site
- Calyptraea diegoana1 site
- Cardiomya alkiensis1 site
- Cochlodesma bainbridgensis1 site
- Crepidula ungana1 site
- Cyclocardia castor1 site
- Cyclocardia hannai1 site
- Dentalia conradi1 site
- Epitonium (Cirsotrema) saundersi1 site
- Ficus modesta1 site
- Fusinus (Priscofusus) hannibali1 site
- Gyrineum goodspeedi1 site
- Katherinella arnoldi1 site
- Leucosyrinx clallamensis wardi1 site
- Liracassis petrosa1 site
- Liracassis rex1 site
- Macoma1 site
The Paleobiology Database records 2 sites for Leda alkiensis, 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- Megafaunal zones of the Oligocene of northwestern Washington1
- Paleontology of the Marine Tertiary formations of Oregon and Washington1
Each of the 2 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

Picture of Leda alkiensis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Leda alkiensis was found in Smithsonian Open Access and Sketchfab.
MorphoSource 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 itNuculana through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Clark 1925)