Pholadomya occidentalis

Yale Peabody Museum · CC0 · via GBIF. 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
- PholadomyaPBDB
- Diet
- suspension feederPBDB, for Pholadomyidae
- Life habit
- deep infaunalPBDB, for Pholadomyidae
- Motility
- facultatively mobilePBDB, for Pholadomyidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
18 occurrences of Pholadomya occidentalis 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
18 occurrences- Late Cretaceous100%
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
6 formations
- Owl Creek Formation4
- Merchantville Formation4
- Prairie Bluff Formation3
- Escondido Formation1
- Ripley Formation1
- Black Creek Formation1
Loading coastlines…
The named rock units Pholadomya occidentalis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Pholadomya occidentalis and its relatives
Late CretaceousWhere Pholadomya occidentalis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
565 taxa- Linearis13 sites
- Veniella conradi13 sites
- Cyprimeria12 sites
- Nuculana12 sites
- Anomia argentaria11 sites
- Crassatella vadosa11 sites
- Cymbophora11 sites
- Liopistha protexta11 sites
- Syncyclonema11 sites
- Aphrodina10 sites
- Cymella10 sites
- Exogyra (Exogyra) costata10 sites
- Camptonectes bubonis9 sites
- Crenella elegantula9 sites
- Crenella serica9 sites
- Glycymeris9 sites
- Idonearca capax9 sites
- Legumen ellipticum9 sites
- Nemodon eufaulensis9 sites
- Nucula percrassa9 sites
- Striarca9 sites
- Tenea9 sites
- Turritella9 sites
- Arca8 sites
The Paleobiology Database records 18 sites for Pholadomya occidentalis, 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
8 references- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain5
- Unpublished data on Cretaceous-Paleocene molluscan assemblages4
- Stratigraphy of the outcropping post-Magothy Upper Cretaceous formations in Southern New Jersey an Northern Delmarva peninsula, Delaware and Maryland3
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain2
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf1
- Paleoecology of the Delaware Valley region. Part II: Cretaceous to Quartenary1
- The fauna of the Ripley formation on Coon creek, Tennessee1
- The Cretaceous formations1
Each of the 18 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 Pholadomya occidentalis
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Pholadomya occidentalis was found in MorphoSource and Sketchfab.
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 itPholadomya through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Morton