Idmonea californica

via iDigBio · via iDigBio. 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
- southern staghorn bryozoanPBDB
- Sits inside
- IdmoneaPBDB
- Diet
- suspension feederPBDB, for Tubuliporata
- Life habit
- epifaunalPBDB, for Tubuliporata
- Motility
- stationary, attachedPBDB, for Tubuliporata
- Vision
- blindPBDB, for Stenolaemata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 1.8 million years on record.
The record covers at least 2.58 Mya to 774 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.
10 occurrences of Idmonea californica on record, most of them in the Pleistocene. 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
10 occurrences- Pliocene14%
- Pleistocene86%
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
3 formations
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The named rock units Idmonea californica has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Idmonea californica and its relatives
PleistoceneWhere Idmonea californica and its relatives were recorded in the Pleistocene.
Found in the same rock
254 taxa- Caesia perpinguis5 sites
- Dallocardia quadragenarium4 sites
- Dentalium neohexagonum4 sites
- Lirobittium rugatum4 sites
- Mitrella gausapata4 sites
- Nemocardium (Keenaea) centifilosum4 sites
- Patinopecten caurinus4 sites
- Solen sicarius4 sites
- Turritella cooperi4 sites
- Acteocina culcitella3 sites
- Callianax pedroana3 sites
- Caryocorbula luteola3 sites
- Coanicardita occidentalis3 sites
- Crepidula nummaria3 sites
- Crepidula princeps3 sites
- Crockerella conradiana3 sites
- Cryptonatica affinis3 sites
- Fusitriton oregonensis3 sites
- Glossaulax reclusiana3 sites
- Neptunea (Sulcosipho) tabulata3 sites
- Paciocinebrina barbarensis3 sites
- Paciocinebrina foveolata3 sites
- Paramormula tridentata3 sites
- Parvilucina tenuisculpta3 sites
The Paleobiology Database records 5 sites for Idmonea californica, 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
5 references- The cool-water Timms Point Pleistocene horizon at San Pedro, California4
- Paleontology and stratigraphy of some marine Pleistocene deposits in northwest Los Angeles Basin, California2
- Geology of the eastern part of the Santa Monica Mountains, Los Angeles County, California2
- Geology and Paleontology of a Portion of Los Angeles, California1
- The Anomalous Stratigraphy of Deadman's Island, California1
Each of the 10 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 Idmonea californica
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Idmonea californica 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 itIdmonea through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. d'Orbigny 1852