Anomia argentaria

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
- AnomiaPBDB
- Diet
- suspension feederPBDB, for Anomia
- Life habit
- epifaunalPBDB, for Anomia
- Motility
- stationary, attached, epibiontPBDB, for Anomia
- Vision
- blindPBDB, for Bivalvia
- Environment
- marinePBDB, for Pectinida
Time the record covers
At least 27 million years on record.
The record covers at least 93.9 Mya to 66 Mya. No occurrence read is dated outside 100.5 Mya to 61.66 Mya.
348 occurrences of Anomia argentaria on record, most of them in the Late Cretaceous. 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
348 occurrences- Late Cretaceous99%
- Paleoceneunder 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
29 formations
- Providence Formation68
- Prairie Bluff Formation · Selma Group65
- Corsicana Marl Formation34
- Peedee Formation32
- Chiwapa Formation18
- Escondido Formation18
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The named rock units Anomia argentaria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 further formations hold fewer occurrences each and are not listed. 28 occurrences have no formation on record, which is common for older literature.
Anomia argentaria and its relatives
Late CretaceousWhere Anomia argentaria and its relatives were recorded in the Late Cretaceous.
Found in the same rock
592 taxa- Syncyclonema145 sites
- Crenella serica138 sites
- Exogyra (Exogyra) costata136 sites
- Cubitostrea tecticosta125 sites
- Crassatella vadosa121 sites
- Cymbophora116 sites
- Serpula112 sites
- Camptonectes bubonis109 sites
- Veniella conradi107 sites
- Hamulus onyx106 sites
- Nuculana105 sites
- Vertebrata99 sites
- Cyprimeria98 sites
- Granocardium91 sites
- Striarca90 sites
- Caestocorbula (Caestocorbula) crassaplica88 sites
- Bryozoa87 sites
- Pseudolimea reticulata87 sites
- Turritella86 sites
- Idonearca capax81 sites
- Pycnodonte vesicularis76 sites
- Turritella trilira76 sites
- Cyclorisma75 sites
- Gabbigonia eufaulensis74 sites
The Paleobiology Database records 344 sites for Anomia argentaria, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
26 references- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain94
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf91
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain49
- Unpublished data on Cretaceous-Paleocene molluscan assemblages25
- The larger invertebrate fossils of the Navarro group of Texas12
- Cretaceous deposits of the eastern gulf region and species of Exogyra from the eastern gulf region and the Carolinas12
- The Black Creek-Peedee formational contact (Upper Cretaceous) in the Cape Fear river region of North Carolina11
- Stratigraphy of the outcropping post-Magothy Upper Cretaceous formations in Southern New Jersey an Northern Delmarva peninsula, Delaware and Maryland9
- The Cretaceous formations8
- Fabric of the Cretaceous-Tertiary Marine Macrofaunal Transition at Braggs, Alabama5
- Changes in Late Cretaceous - early Tertiary benthic marine assemblages: analyses from the North American coastal plain shallow-shelf4
- Archeogastropoda, Mesogastropoda and stratigraphy of the Ripley, Owl Creek, and Prairie Bluff Formations4
Each of the 348 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. 14 further references are not listed. 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 Anomia argentaria
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAnomia through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Morton 1833