Alvania almo

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
- AlvaniaPBDB
- Diet
- grazerPBDB, for Rissoidae
- Life habit
- epifaunalPBDB, for Rissoidae
- Motility
- actively mobilePBDB, for Rissoidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 2.6 million years on record.
Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Alvania almo 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%
- Holoceneunder 1%
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 Alvania almo has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Alvania almo and its relatives
PleistoceneWhere Alvania almo and its relatives were recorded in the Pleistocene.
Found in the same rock
150 taxa- Acanthinucella punctulata2 sites
- Acmaea mitra2 sites
- Actonia oldroydae2 sites
- Alvinia aequisculpta2 sites
- Alvinia purpurea2 sites
- Amphissa versicolor2 sites
- Amphithalamus inclusus2 sites
- Amphithalamus tenuis2 sites
- Antisabia panamensis2 sites
- Atrimitra idae2 sites
- Balanophyllia elegans2 sites
- Barleeia oldroydi2 sites
- Barleeia subtenuis2 sites
- Bernardina bakeri2 sites
- Caecum californicum2 sites
- Caecum quadratum2 sites
- Californiconus californicus2 sites
- Callianax biplicata2 sites
- Callistochiton crassicostatus2 sites
- Cerithiopsis2 sites
- Chlorostoma brunnea2 sites
- Chlorostoma funebrale2 sites
- Crepidula adunca2 sites
- Cryptochiton stelleri2 sites
The Paleobiology Database records 2 sites for Alvania almo, 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- Geology of San Nicolas Island, California2
- Geology and Paleontology of Palos Verdes Hills, California1
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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Alvania almo
- 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 Alvania almo 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 itAlvania through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bartsch 1911