Roncador stearnsii
The spotfin croaker is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers, and is found in the Eastern Pacific Ocean. It is the only species in the genus Roncador.
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
- spotfin croakerPBDB
- Sits inside
- RoncadorPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 2.4 million years on record.
The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.
3 occurrences of Roncador stearnsii 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
3 occurrences- Pliocene33%
- Pleistocene67%
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 Roncador stearnsii has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Roncador stearnsii and its relatives
PleistoceneWhere Roncador stearnsii and its relatives were recorded in the Pleistocene.
Found in the same rock
417 taxa- Atherinopsis californiensis3 sites
- Chilara taylori3 sites
- Citharichthys3 sites
- Citharichthys sordidus3 sites
- Citharichthys stigmaeus3 sites
- Cymatogaster aggregata3 sites
- Electrona rissoi3 sites
- Engraulis mordax3 sites
- Galeorhinus galeus3 sites
- Genyonemus lineatus3 sites
- Hirtoscala tincta3 sites
- Lepidogobius lepidus3 sites
- Merluccius productus3 sites
- Myliobatis californica3 sites
- Nitidiscala indianorum3 sites
- Ophidion scrippsae3 sites
- Paralichthys californicus3 sites
- Porichthys myriaster3 sites
- Porichthys notatus3 sites
- Sebastes (Sebastodes)3 sites
- Seriphus politus3 sites
- Triakis semifasciata3 sites
- Asperiscala bellastriata2 sites
- Asperiscala minuticosta2 sites
The Paleobiology Database records 3 sites for Roncador stearnsii, 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
3 references- Fish remains, mostly otoliths and teeth, from the Palos Verdes Sand (Late Pleistocene) of 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 3 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 Roncador stearnsii
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Roncador stearnsii 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.
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 itRoncador through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Steindachner 1875)