Cryptomya

Manuel CABALLER · CC BY 4.0 · 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- Sits inside
- MyidaePBDB
- Diet
- suspension feederPBDB, for Myidae
- Life habit
- infaunalPBDB, for Myidae
- Motility
- facultatively mobilePBDB, for Myidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 37 million years on record.
The record covers at least 37.71 Mya to 11.7 ka. No occurrence read is dated outside 48.07 Mya to 0 Mya.
173 occurrences of Cryptomya 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
173 occurrencesThese 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
36 formations
- Careaga Sandstone Formation27
- Sisquoc Formation19
- Palos Verdes Sand Formation18
- Pancho Rico Formation8
- Etchegoin Formation6
- Towsley Formation4
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The named rock units Cryptomya has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 48 occurrences have no formation on record, which is common for older literature.
Cryptomya and its relatives
PleistoceneWhere Cryptomya and its relatives were recorded in the Pleistocene.
Found in the same rock
1,726 taxa- Callianax biplicata37 sites
- Tresus nuttallii37 sites
- Macoma nasuta32 sites
- Anadara trilineata31 sites
- Glossaulax reclusiana31 sites
- Lucinisca nuttalli27 sites
- Saccella taphria27 sites
- Callithaca tenerrima25 sites
- Nutricola tantilla25 sites
- Leptopecten latiauratus24 sites
- Leukoma staminea24 sites
- Californiconus californicus22 sites
- Epilucina californica22 sites
- Caryocorbula luteola21 sites
- Crassadoma gigantea21 sites
- Mactromeris hemphillii21 sites
- Mitrella gausapata21 sites
- Solen sicarius21 sites
- Tivela (Pachydesma) stultorum21 sites
- Donax (Donax) gouldii20 sites
- Leporimetis obesa20 sites
- Pododesmus (Monia) macrochisma20 sites
- Caesia moraniana19 sites
- Cumingia californica19 sites
The Paleobiology Database records 132 sites for Cryptomya, and this reads all 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
61 references- Geology and paleontology of the Santa Maria District California43
- Pancho Rico Formation, Salinas Valley9
- The paleontology of the Pleistocene molluscan fauna of the Newport Bay area, California9
- The Etchegoin Pliocene of middle California9
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California6
- On the reconciliation of biostratigraphy and strontium isotope stratigraphy of three southern Californian Plio-Pleistocene formations4
- Early Pliocene marine climate and environment of the eastern Ventura Basin, Southern California4
- Late Pleistocene faunas from the northwestern coast of Baja California, Mexico4
- A Pleistocene invertebrate fauna from the southwest corner of San Diego County, California4
- Eocene Mollusca from the Tainohata Formation in Kobe City, southwest Japan3
- Paleoecologic analysis and age of a late Pleistocene fossil assemblage from Upper Newport Bay, Newport Beach, Orange County, California3
- Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast.3
Each of the 173 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. 49 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 Cryptomya
- Source
- Wikidata/Commons
- Credit
- Manuel CABALLER
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Cryptomya californica · fmnh:invertebrate zoology:142433
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 itMyidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1848)