Paralichthys californicus
The California halibut or California flounder is a large-tooth flounder native to the waters of the Pacific Coast of North America from the Quillayute River in Washington to Magdalena Bay in Baja California Sur.

Uncredited · Public Domain · via Wikipedia/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
- California halibutPBDB
- Sits inside
- ParalichthysPBDB
- Diet
- carnivorePBDB, for Pleuronectiformes
- Life habit
- nektobenthicPBDB, for Pleuronectiformes
- Motility
- actively mobilePBDB, for Pleuronectiformes
Time the record covers
At least 2.5 million years on record.
The record covers at least 2.58 Mya to 11.7 ka. No occurrence read is dated outside 3.6 Mya to 0 Mya.
6 occurrences of Paralichthys californicus 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
6 occurrences- Pliocene17%
- Pleistocene67%
- Holocene17%
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
1 formation
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The named rock units Paralichthys californicus 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.
Paralichthys californicus and its relatives
PleistoceneWhere Paralichthys californicus and its relatives were recorded in the Pleistocene.
Found in the same rock
458 taxa- Cymatogaster aggregata6 sites
- Engraulis mordax6 sites
- Galeorhinus galeus6 sites
- Genyonemus lineatus6 sites
- Myliobatis californica6 sites
- Porichthys notatus6 sites
- Seriphus politus6 sites
- Triakis semifasciata6 sites
- Atherinopsis californiensis5 sites
- Carcharodon carcharias5 sites
- Chilara taylori5 sites
- Lepidogobius lepidus5 sites
- Ophidion scrippsae5 sites
- Raja5 sites
- Squatina californica5 sites
- Carcharhinus4 sites
- Citharichthys sordidus4 sites
- Citharichthys stigmaeus4 sites
- Heterodontus francisci4 sites
- Isurus oxyrinchus4 sites
- Merluccius productus4 sites
- Porichthys myriaster4 sites
- Semicossyphus pulcher4 sites
- Alopias vulpinus3 sites
The Paleobiology Database records 6 sites for Paralichthys californicus, 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- Fish remains, mostly otoliths and teeth, from the Palos Verdes Sand (Late Pleistocene) of California2
- Preliminary List of the Marine Fishes and Other Vertebrate Remains from the Late Pleistocene Palos Verdes Sand Formation at Costa Mesa, Orange County, California1
- Otoliths and other fish remains from the Chumash Midden at Rincon Point (SBa-1) Santa Barbara-Ventura counties, California1
- Otoliths and other fish remains from a Long Beach, California, Pliocene deposit1
- Fish records from the Pleistocene of southern California in the collections of the Los Angeles County Museum1
Each of the 6 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 Paralichthys californicus
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itParalichthys through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Ayres 1859)