Anomia

Jan Johan ter Poorten · CC BY-SA 3.0 · via Wikidata/Commons. 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
- jinglePBDB
- Sits inside
- AnomiidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- stationary, attached, epibiontPBDB
- Vision
- blindPBDB, for Bivalvia
- Environment
- marinePBDB, for Pectinida
Time the record covers
At least 264 million years on record.
The record covers at least 264.28 Mya to 11.7 ka. No occurrence read is dated outside 266.9 Mya to 0 Mya.
1,619 occurrences of Anomia on record, most of them in the Late Cretaceous. 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
1,619 occurrences- Permianunder 1%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassicunder 1%
- Early Jurassicunder 1%
- Middle Jurassicunder 1%
- Late Jurassicunder 1%
- Early Cretaceous2%
- Late Cretaceous49%
- Paleocene1%
- Eocene10%
- Oligocene2%
- Miocene15%
- Pliocene8%
- Pleistocene10%
- 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
308 formations
- Providence Formation95
- Escondido Formation86
- Prairie Bluff Formation · Selma Group71
- Peedee Formation47
- Vaqueros Formation44
- Corsicana Marl Formation36
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The named rock units Anomia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 284 further formations hold fewer occurrences each and are not listed. 279 occurrences have no formation on record, which is common for older literature.
Anomia and its relatives
Late CretaceousWhere Anomia and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,322 taxa- Exogyra (Exogyra) costata114 sites
- Crassatella vadosa100 sites
- Syncyclonema91 sites
- Veniella conradi90 sites
- Crenella serica85 sites
- Cyprimeria83 sites
- Nuculana83 sites
- Serpula81 sites
- Cymbophora76 sites
- Camptonectes bubonis73 sites
- Cubitostrea tecticosta72 sites
- Idonearca capax72 sites
- Pycnodonte vesicularis72 sites
- Granocardium71 sites
- Bryozoa66 sites
- Linearis66 sites
- Turritella66 sites
- Turritella vertebroides66 sites
- Pseudolimea reticulata64 sites
- Vertebrata62 sites
- Cliona61 sites
- Liopistha protexta61 sites
- Gryphaeostrea vomer59 sites
- Hamulus onyx57 sites
The Paleobiology Database records 1,221 sites for Anomia, 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
367 references- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain122
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain120
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf110
- Unpublished data on Cretaceous-Paleocene molluscan assemblages71
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions41
- The Vaqueros Formation, Lower Miocene of California. I. Paleontology41
- Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas33
- The Black Creek-Peedee formational contact (Upper Cretaceous) in the Cape Fear river region of North Carolina31
- Map and checklists of Jurassic and Cretaceous macrofossil localities within the San Jose 1:100,000 Quadrangle, California, and discussion of paleontological results30
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals28
- Mollusca from the upper Cretaceous Jalama Formation, Santa Barbara County, California26
- The Molluscan Fauna of the Alum Bluff Group of Florida25
Each of the 1,619 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. 355 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 content2

Picture of Anomia
- Source
- Wikidata/Commons
- Credit
- Jan Johan ter Poorten
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Anomia gryphorhyncha · YPM:IP:YPM IP 340649
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 itAnomiidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1758