Macoma (Macoma) inquinata

Jiayang Li · CC BY-NC 4.0 · 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- Also called
- pointed macomaPBDB
- Sits inside
- Macoma (Macoma)PBDB
- Diet
- deposit feederPBDB, for Tellinidae
- Life habit
- infaunalPBDB, for Tellinidae
- Motility
- facultatively mobilePBDB, for Tellinidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 33 million years on record.
The record covers at least 33.9 Mya to 129 ka. No occurrence read is dated outside 37.71 Mya to 11.7 ka.
51 occurrences of Macoma (Macoma) inquinata 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
51 occurrences- Eocene27%
- Miocene6%
- Pliocene15%
- Pleistocene52%
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
13 formations
- Eugene Formation14
- Etchegoin Formation6
- Palos Verdes Sand Formation5
- San Pedro Sand Formation4
- Pancho Rico Formation3
- Timms Point Silt Formation3
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The named rock units Macoma (Macoma) inquinata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Macoma (Macoma) inquinata and its relatives
PleistoceneWhere Macoma (Macoma) inquinata and its relatives were recorded in the Pleistocene.
Found in the same rock
704 taxa- Glossaulax reclusiana21 sites
- Callianax biplicata17 sites
- Solen sicarius16 sites
- Caesia perpinguis14 sites
- Cryptomya californica14 sites
- Leukoma staminea14 sites
- Turritella cooperi14 sites
- Bruclarkia12 sites
- Callianax pedroana12 sites
- Macoma nasuta12 sites
- Mactromeris eugenensis12 sites
- Saccella taphria12 sites
- Caesia fossatus11 sites
- Californiconus californicus11 sites
- Clinocardium (Clinocardium) nuttallii11 sites
- Lucinisca nuttalli11 sites
- Megangulus bodegensis11 sites
- Mitrella gausapata11 sites
- Paciocinebrina lurida11 sites
- Pitar (Pitar) dalli11 sites
- Solena (Eosolen) eugenensis11 sites
- Tresus nuttallii11 sites
- Alia carinata10 sites
- Calliostoma canaliculatum10 sites
The Paleobiology Database records 40 sites for Macoma (Macoma) inquinata, 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
18 references- The Oligocene marine molluscan fauna of the Eugene Formation in Oregon14
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California7
- The Etchegoin Pliocene of middle California6
- Late Pleistocene marine paleoecology and zoogeography on Central California4
- Pancho Rico Formation, Salinas Valley3
- The marine Tertiary stratigraphy of the North Pacific coast of America3
- Late Pleistocene marine fauna, Goleta, California2
- The Anomalous Stratigraphy of Deadman's Island, California2
- Bivalve seashells of western North America1
- The paleontology and stratigraphy of the Pleistocene at Signal hill, Long Beach, California1
- Geology of the Kettleman Hills Oil Field, California, Stratigraphy, Paleontology and Structure1
- Report on Pleistocene Molluscan Fauna at Capistrano Beach, Orange County, Calif1
Each of the 51 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. 6 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 Macoma (Macoma) inquinata
- Source
- GBIF
- Credit
- Jiayang Li
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Macoma calcarea · fmnh:invertebrate zoology:71115
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMacoma (Macoma) through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Deshayes 1855)