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.[1] It is known from very fragmentary remains which consist of several scales that were found in Brazil. Judging from the size of the scales (dorsoventral height up to 8 cm (3.1 in), thickness up to 1.3 cm (0.5 in)), 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.[2][3]
| Acregoliath Temporal range: Miocene,
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Genus: | †Acregoliath Richter, 1989 |
| Species: | †A. rancii
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| Binomial name | |
| †Acregoliath rancii Richter, 1989
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References
edit- ^ "PBDB". paleobiodb.org. Retrieved 2024-03-01.
- ^ Richter, Martha (April 1989). "Acregoliathidae (Osteichthyes, Teleostei), a new family of fishes from the Cenozoic of Acre State, Brazil". Zoologica Scripta. 18 (2): 311–319. doi:10.1111/j.1463-6409.1989.tb00457.x. ISSN 0300-3256. S2CID 84206035.
- ^ Ballen, Gustavo A.; Moreno-Bernal, Jorge W. (2019-10-07). "New Records of the Enigmatic Neotropical Fossil Fish Acregoliath rancii (Teleostei Incertae sedis) from the Middle Miocene Honda Group of Colombia". Ameghiniana. 56 (6): 431. doi:10.5710/AMGH.17.09.2019.3266. ISSN 0002-7014. S2CID 210112784.
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