Adula

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- Also called
- datemusselPBDB
- Sits inside
- LithophaginaePBDB
- Diet
- suspension feederPBDB, for Mytilidae
- Life habit
- epifaunalPBDB, for Mytilidae
- Motility
- stationary, attachedPBDB, for Mytilidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae
Time the record covers
At least 40 million years on record.
The record covers at least 41.03 Mya to 129 ka. No occurrence read is dated outside 48.07 Mya to 11.7 ka.
11 occurrences of Adula 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
11 occurrences- Eocene36%
- Pleistocene64%
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
5 formations
- Kovachinskaya Formation1
- Snatol'skaya Formation1
- San Pedro Formation1
- San Pedro Sand Formation1
- Ardath Formation · La Jolla Group1
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The named rock units Adula has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Adula and its relatives
PleistoceneWhere Adula and its relatives were recorded in the Pleistocene.
Found in the same rock
435 taxa- Alia carinata3 sites
- Caesia perpinguis3 sites
- Calliostoma canaliculatum3 sites
- Crepidula adunca3 sites
- Crepidula onyx3 sites
- Cryptomya californica3 sites
- Dallocardia quadragenarium3 sites
- Leptopecten latiauratus3 sites
- Nitidiscala indianorum3 sites
- Paciocinebrina lurida3 sites
- Tresus nuttallii3 sites
- Acharax2 sites
- Acila (Truncacila) castrensis2 sites
- Anomia2 sites
- Boreotrophon multicostatus2 sites
- Caesia fossatus2 sites
- Californiconus californicus2 sites
- Callianax biplicata2 sites
- Callianax pedroana2 sites
- Calliostoma ligatum2 sites
- Chlamys hastata2 sites
- Chlamys rubida2 sites
- Clinocardium (Clinocardium) nuttallii2 sites
- Coanicardita ventricosa2 sites
The Paleobiology Database records 7 sites for Adula, 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
6 references- Late Pleistocene marine paleoecology and zoogeography on Central California4
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast.2
- An Eocene invertebrate fauna from the La Jolla Quadrangle, California2
- A Pleistocene invertebrate fauna from the southwest corner of San Diego County, California1
- The paleontology and stratigraphy of the Pleistocene at Signal hill, Long Beach, California1
- The fossils of the Lower San Pedro fauna of the Nob Hill cut, San Pedro, California1
Each of the 11 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. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Adula
- 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 Adula 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 itLithophaginae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Adams and Adams 1857)