Crommium pinyonensis

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- Sits inside
- CrommiumPBDB
- Diet
- carnivorePBDB, for Naticidae
- Life habit
- semi-infaunalPBDB, for Naticidae
- Motility
- actively mobilePBDB, for Naticidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 7.9 million years on record.
The record covers at least 56 Mya to 48.07 Mya. No occurrence read is dated outside 66 Mya to 41.03 Mya.
7 occurrences of Crommium pinyonensis on record, most of them in the Eocene. 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
7 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
5 formations
- Juncal Formation3
- Lodo Formation1
- Santa Susana Formation1
- Delmar Formation · La Jolla Group1
- Santiago Formation1
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The named rock units Crommium pinyonensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Crommium pinyonensis and its relatives
EoceneWhere Crommium pinyonensis and its relatives were recorded in the Eocene.
Found in the same rock
129 taxa- Cylichnina tantilla4 sites
- Neverita (Neverita) globosa4 sites
- Calyptraea diegoana3 sites
- Eocernina hannibali3 sites
- Benoistia cantonensis2 sites
- Brachysphingus sinuatus2 sites
- Clavilithes tabulatus2 sites
- Corbula (Caryocorbula) dickersoni2 sites
- Crommium andersoni2 sites
- Fasciolaria bilineata2 sites
- Nerita (Theliostyla) triangulata2 sites
- Olivella mathewsonii2 sites
- Ostrea2 sites
- Pelecyora aequilateralis2 sites
- Potamides carbonicola2 sites
- Turricula cooperi2 sites
- Turritella infragranulata2 sites
- Turritella uvasana infera2 sites
- Umpquaia oregonensis2 sites
- Acila (Truncacila) decisa1 site
- Acutostrea idriaensis1 site
- Amaurellina caleocia1 site
- Anomia mcgoniglensis1 site
- Ariidae1 site
The Paleobiology Database records 7 sites for Crommium pinyonensis, 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- Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura counties, California3
- An Eocene sea turtle from the eastern North Pacific fills a Paleogene gap1
- A new species of brachyuran from the Paleocene of California1
- Middle Eocene mollusks from northern San Diego County, California1
- Age, Correlation and Possible Tethyan Affinities of Mollusks from the Lodo Formation of Fresno County, California1
Each of the 7 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 Crommium pinyonensis
- 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 Crommium pinyonensis 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 itCrommium through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Dickerson 1914)