Amblypterus (from Greek: ἀμβλύς amblys, ‘blunt’ and Greek: πτερόν pteron ‘wing’ or ‘fin’)[1] is an extinct genus of freshwater ray-finned fish that lived during the Gzhelian (upper Carboniferous) and Cisuralian (lower Permian) epoch in what is now Europe (France & Germany) and possibly India, the United States and Argentina.[2][3] Potential indeterminate records stretch as far back as the early Carboniferous.[4]
Taxonomy
This genus displays close similarities to Paramblypterus, to the extent that both may be synonymous, although presently they are considered distinct. The type specimen of A. latus is lost.[5]
Species
The following species are known:[4][6]
- A. arcuatus Egerton, 1850 – Early Permian (Sakmarian) of Germany (Goldlauterer Formation)
- A. baylei Sauvage, 1890 – – Early Permian (Asselian) of France (Muse Formation)
- A. beaumonti Egerton, 1850 – Asselian of France (Muse Formation)
- A. berthieri Sauvage, 1893 – Asselian of France (Assise de Millery Formation)
- A. bibractensis Sauvage, 1893 – Asselian of France (Assise de Millery Formation)
- A. decorus Egerton, 1850 – Late Carboniferous (Gzhelian) of France (Commentry Shales)
- A. kashmiriensis Woodward & Seward, 1905 – Early Permian (Artinskian) of Jammu & Kashmir, India (Mamal Formation)
- A. latus Agassiz, 1833 (type species) – Asselian of Germany (Meisenheim & Lebacher Schichten Formations)[7]
- A. magnus Sauvage, 1890 – Asselian of France (Muse Formation)
- A. stewarti Romer, 1942 – Late Carboniferous (Kasimovian to Gzhelian) of West Virginia, US (Uniontown Limestone)[8]
- A. symmetricus Woodward, 1905 – Artinskian of Jammu & Kashmir, India (Mamal Formation)
- A. traquairi Woodward, 1891 – Asselian of Germany (Meisenheim & Lebacher Schichten Formations)[6]
Synonymy
- Amblypterus agassizi (Munster, 1835) → Gyrolepis agassizi Munster, 1835
- Amblypterus blainvillei (Agassiz, 1833) → Aeduella blainvillei (Agassiz, 1833) [= Palaeoniscus blainvillei Agassiz, 1833, Palaeothrissum inaequilobum Blainville, 1818][9]
- Amblypterus eurypterygius Agassiz, 1833 → Rhabdolepis macroptera (Bronn, 1829)
- Amblypterus duvernoyi Agassiz, 1833 → Paramblypterus duvernoyi (Agassiz, 1833)[3]
- Amblypterus lateralis Agassiz, 1833 → Amblypterus latus Agassiz, 1833
- Amblypterus orientalis Eichwald, 1860 → ?Tetragonolepis murchisoni von Waldheim, 1842[6]
- Amblypterus ornatus Emmons, 1857 (=A. carolinae Hay, 1902) → ?Turseodus sp.[6][10]
- Amblypterus macropterus (Bronn, 1829) → Rhabdolepis macroptera (Bronn, 1829)[11]
See also
References
- ^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 6. Retrieved 29 December 2021.
- ^ Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (2016). “Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution”. Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.
- ^ a b Dietze, Kathrin (2000). “A revision of paramblypterid and amblypterid actinopterygians from Upper Carboniferous-Lower Permian lacustrine deposits of Central Europe”. Palaeontology. 43 (5): 927–966. Bibcode:2000Palgy..43..927D. doi:10.1111/1475-4983.00156.
- ^ a b “PBDB”. paleobiodb.org. Retrieved 2024-02-16.
- ^ Muzeum, Národní. “New data on the osteology of the actinopterygian fish Amblypterus and the relationship between Amblypterus and Paramblypterus”. National museum. Retrieved 2024-02-16.
- ^ a b c d Geology, British Museum (Natural History) Department of; Woodward, Arthur Smith (1891). Catalogue of the Fossil Fishes in the British Museum (Natural History): Elasmobranchii (Acanthodii), Holocephali, ichthyodorulites, Ostracodermi, Dipnoi, and Teleostomi (Crossopterygii and chondrostean Actinopterygii). order of the Trustees.
- ^ Traquair, Ramsay H. (1877). “On the Agassizian Genera Amblypterus, Palæoniscus, Gyrolepis, and Pygopterus”. Quarterly Journal of the Geological Society of London. 33 (1–4): 548–578. doi:10.1144/GSL.JGS.1877.033.01-04.33.
- ^ Romer, Alfred Sherwood (1942-03-01). “Notes on certain American Paleozoic fishes”. American Journal of Science. 240 (3). doi:10.2475/ajs.240.3.216.
- ^ Westoll, Thomas S. (1937). “LVII.—On a remarkable fish from the lower Permian of Autun, France”. Annals and Magazine of Natural History. Series 10. 19 (114): 553–577. doi:10.1080/00222933708655302.
- ^ Olsen, Paul Eric; McCune, Amy Reed; Thomson, Keith Stewart (1982-01-01). “Correlation of the early Mesozoic Newark Supergroup by vertebrates, principally fishes”. American Journal of Science. 282 (1). doi:10.2475/ajs.282.1.1.
- ^ Traquair, Ramsay H. (1878). “2. On New and Little-known Fossil Fishes from the Edinburgh District. No. II”. Proceedings of the Royal Society of Edinburgh. 9: 275–282. doi:10.1017/S0370164600032223.
Further reading
- Evolution: The Grand Experiment by Carl Werner and Debbie Werner
- Fishes of the World by Joseph S. Nelson
- A Pictorial Guide to Fossils by Gerard Ramon Case
