Acregoliath
Acregoliath is an extinct genus of ray-finned fish that existed during the middle of Miocene epoch, about 13.76 to 13.34 million years ago. It is known from very fragmentary remains which consist of several scales that were found in Brazil. Judging from the size of the scales, Acregoliath is believed to be a very large freshwater fish. But due to the fragmentary nature of the fossils, its exact size and appearance are difficult to reconstruct. Its scale morphology has been compared with extant osteoglossiform, dipnoan, or siluriform fish especially the loricarioid.

User:Haplochromis · CC BY-SA 3.0 · 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- Sits inside
- TeleosteiPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At most 5 million years on record.
Every occurrence read is dated to somewhere between 15.98 Mya and 11 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Acregoliath on record, most of them in the Miocene. 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
2 occurrences- Miocene100%
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
- La Victoria Formation · Honda Group1
- Pebas Formation1
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The named rock units Acregoliath has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Acregoliath and its relatives
MioceneWhere Acregoliath and its relatives were recorded in the Miocene.
Found in the same rock
27 taxa- Alligatoridae2 sites
- ? Sciaenidaea indet.1 site
- Anachlysictis gracilis1 site
- Callichthyidae1 site
- cf. Serrasalmus sp.1 site
- Characidae1 site
- Cichlidae1 site
- Cichliformes1 site
- Cynodontidae1 site
- Doradidae1 site
- Hemiodus sp.1 site
- Loricariidae1 site
- Magdalenabradys confusum1 site
- Miocochilius anomopodus1 site
- Mylossoma1 site
- Osteoglossiformes1 site
- Osteoglossoidei1 site
- Perciformes1 site
- Pimelodidae1 site
- Podocnemis pritchardi1 site
- Potamotrygon canaanorum1 site
- Potamotrygon rajachloeae1 site
- Potamotrygonidae1 site
- Reptilia1 site
The Paleobiology Database records 2 sites for Acregoliath, 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
2 references- A historical vertebrate collection from the Middle Miocene of the Peruvian Amazon1
- New records of the enigmatic Neotropical fossil fish Acregoliath rancii (Teleostei incertae sedis) from the middle Miocene Honda group of Colombia1
Each of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Acregoliath
- Source
- Wikidata/Commons
- Credit
- User:Haplochromis
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Acregoliath 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
- Source
- Wikipedia, “Acregoliath”
- 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 itTeleostei through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Richter 1989