Rhacochilus vacca

Carl H. Eigenmann · Public Domain · 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
- pile perchPBDB
- Sits inside
- RhacochilusPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 117 thousand years on record.
The record covers at least 129 ka to 11.7 ka. No occurrence read is dated outside 774 ka to 0 Mya.
7 occurrences of Rhacochilus vacca 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
7 occurrences- Pleistocene86%
- Holocene14%
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
2 formations
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The named rock units Rhacochilus vacca 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.
Rhacochilus vacca and its relatives
PleistoceneWhere Rhacochilus vacca and its relatives were recorded in the Pleistocene.
Found in the same rock
167 taxa- Genyonemus lineatus7 sites
- Porichthys notatus6 sites
- Seriphus politus6 sites
- Cymatogaster aggregata5 sites
- Engraulis mordax5 sites
- Galeorhinus galeus5 sites
- Raja5 sites
- Squatina californica5 sites
- Isurus oxyrinchus4 sites
- Leptocottus armatus4 sites
- Merluccius productus4 sites
- Myliobatis californica4 sites
- Prionace glauca4 sites
- Sebastes4 sites
- Triakis semifasciata4 sites
- Atherinopsis californiensis3 sites
- Carcharhinus3 sites
- Carcharodon carcharias3 sites
- Citharichthys3 sites
- Citharichthys sordidus3 sites
- Citharichthys stigmaeus3 sites
- Elasmobranchii3 sites
- Heterodontus francisci3 sites
- Microgadus proximus3 sites
The Paleobiology Database records 7 sites for Rhacochilus vacca, 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 California3
- 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
- Marine studies of San Pedro Bay, California1
- The marine fish fauna, based primarily on otoliths, of a Lower Pleistocene deposit at San Pedro, California (LACMIP 332, San Pedro Sand)1
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 Rhacochilus vacca
- Source
- Wikidata/Commons
- Credit
- Carl H. Eigenmann
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Rhacochilus vacca 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 itRhacochilus through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Girard 1855)