Pholadomyidae
Pholadomyidae is a family of saltwater clams, marine bivalve molluscs in the order Anomalodesmata.
Uncredited · via Wikipedia/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- Sits inside
- PholadomyoideaPBDB
- Diet
- suspension feederPBDB
- Life habit
- deep infaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 450 million years on record.
The record covers at least 453.8 Mya to 3.6 Mya. No occurrence read is dated outside 458.2 Mya to 2.58 Mya.
2,593 occurrences of Pholadomyidae on record, most of them in the Early Jurassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
2,593 occurrences- Ordovician2%
- Silurianunder 1%
- Carboniferousunder 1%
- Permian2%
- Early Triassicunder 1%
- Middle Triassic1%
- Late Triassic3%
- Early Jurassic26%
- Middle Jurassic25%
- Late Jurassic12%
- Early Cretaceous9%
- Late Cretaceous13%
- Paleocene2%
- Eocene4%
- Oligoceneunder 1%
- Miocene1%
- Plioceneunder 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
475 formations
- Dhruma Formation · Shaqra Group133
- Chari Formation57
- Tataouine Formation42
- Hanifa Formation · Shaqra Group28
- Kap Leslie Formation25
- Almonacid de la Cuba Formation25
Loading coastlines…
The named rock units Pholadomyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 451 further formations hold fewer occurrences each and are not listed. 832 occurrences have no formation on record, which is common for older literature.
Pholadomyidae and its relatives
Early JurassicWhere Pholadomyidae and its relatives were recorded in the Early Jurassic.
Found in the same rock
2,203 taxa- Pholadomya107 sites
- Nuculana51 sites
- Serpula51 sites
- Astarte48 sites
- Nanogyra (Nanogyra) nana47 sites
- Modiolus44 sites
- Pleuromya uniformis43 sites
- Isognomon40 sites
- Panopea38 sites
- Camptonectes36 sites
- Syncyclonema34 sites
- Pinna32 sites
- Protocardia32 sites
- Cymbophora31 sites
- Granocardium31 sites
- Linearis30 sites
- Pycnodonte vesicularis29 sites
- Cyprimeria28 sites
- Isocyprina28 sites
- Nucula28 sites
- Radulopecten fibrosus28 sites
- Ammonoidea27 sites
- Pseudomelania27 sites
- Anomia argentaria26 sites
The Paleobiology Database records at least 1,451 sites for Pholadomyidae, 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
495 references- Le Jurassique D`Arabie Centrale158
- Palokologie und zeitliche Verbreitung benthischer Faunengemeinschaften im Unterjura von Chile126
- Unpublished data94
- Palökologie benthischer Faunen aus dem Unter-Toarc SW-Europas83
- Unpublished data from Kachchh76
- Early Jurassic Bivalvia of northern Chile. Part II. Subclass Anomalodesmata63
- Unpublished data on Cretaceous-Paleocene molluscan assemblages63
- The Lower Jurassic Rocks of East Greenland Part 160
- Bivalvos del Pliensbachiense en la Seccion de Almonacid de la Cuba (Cordillera Iberica, Espana)48
- Taxonomy and palaeoecology of the benthic macroinvertebrate fauna from the Middle Jurassic of northwestern Jordan48
- Jura Vaudois et Neuchatelois48
- Palökologie benthischer Faunengemeinschaften und Taxonomie der Bivalven im Jura von Südtunesien46
Each of the 2,593 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. 483 further references are not listed. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Pholadomyidae
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Pholadomyidae 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.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPholadomyoidea through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. King 1844