Atrimitra idae

Sellanes J, Salisbury RA, Tapia JM, Asorey CM. 2019. A new species of Atrimitra Dall, 1918 (Gastropoda: Mitridae) fro… · 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- Also called
- half-pitted miterPBDB
- Sits inside
- AtrimitraPBDB
- Diet
- carnivorePBDB, for Mitridae
- Life habit
- epifaunalPBDB, for Mitridae
- Motility
- actively mobilePBDB, for Mitridae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 3.4 million years on record.
The record covers at least 3.6 Mya to 129 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.
58 occurrences of Atrimitra idae 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
58 occurrences- Pliocene11%
- Pleistocene89%
- 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
11 formations
- Unnamed Formation9
- Palos Verdes Sand Formation6
- Fernando Formation3
- Quaternary terrace Formation3
- Lomita Marl Formation3
- Towsley Formation2
Loading coastlines…
The named rock units Atrimitra idae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 occurrences have no formation on record, which is common for older literature.
Atrimitra idae and its relatives
PleistoceneWhere Atrimitra idae and its relatives were recorded in the Pleistocene.
Found in the same rock
1,108 taxa- Californiconus californicus43 sites
- Callianax biplicata36 sites
- Littorina (Littorina) scutulata32 sites
- Epilucina californica31 sites
- Thylacodes squamigerus31 sites
- Chlorostoma funebrale29 sites
- Lottia scabra28 sites
- Crepidula adunca27 sites
- Amphissa versicolor26 sites
- Diodora aspera26 sites
- Crassadoma gigantea25 sites
- Fissurella volcano25 sites
- Glans carpenteri25 sites
- Acmaea mitra24 sites
- Hipponix tumens24 sites
- Lottia insessa24 sites
- Pododesmus (Monia) macrochisma24 sites
- Dentalium neohexagonum23 sites
- Glossaulax reclusiana23 sites
- Leukoma staminea23 sites
- Mitrella gausapata23 sites
- Mitrella tuberosa22 sites
- Alia carinata21 sites
- Caesia fossatus21 sites
The Paleobiology Database records 48 sites for Atrimitra idae, 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
22 references- Geology of San Nicolas Island, California9
- Late Pleistocene megafauna of Cayucos, California, and its zoogeographic significance7
- A review of the Quaternary Mollusca of the Palos Verdes Peninsula6
- Geology and Paleontology of Palos Verdes Hills, California4
- Paleontology of the Pleistocene of Point Loma, San Diego County, California4
- A Neogene section northeastern San Clemente Island, California3
- Pleistocene invertebrates from Punta Baja, Baja California, Mexico3
- The cool-water Timms Point Pleistocene horizon at San Pedro, California3
- Early Pliocene marine climate and environment of the eastern Ventura Basin, Southern California2
- Late Pleistocene Invertebrates from Punta Cabras, Baja California, Mexico2
- Late Pleistocene faunas from the northwestern coast of Baja California, Mexico2
- Pleistocene invertebrates from Punta China, Baja California, Mexico, with remarks on the composition of the Pacific coast Quaternary faunas2
Each of the 58 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. 10 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 content1

Picture of Atrimitra idae
- Source
- Wikidata/Commons
- Credit
- Sellanes J, Salisbury RA, Tapia JM, Asorey CM. 2019. A new species of Atrimitra Dall, 1918 (Gastropoda: Mitridae) fro…
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Atrimitra idae was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itAtrimitra through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Melville 1893)