Biology:Ampheristus

From HandWiki

Ampheristus is an extinct genus of prehistoric marine ray-finned fish. It was a basal or stem member of the family Ophidiidae, which contains modern cusk-eels. Fossils are known from worldwide (the United States, Europe, India, and New Zealand) from the Late Cretaceous to the late Paleogene (Maastrichtian to Oligocene), making it a rather successful survivor of the Cretaceous-Paleogene extinction event.[1]

It is one of the oldest known members of the order Ophidiiformes alongside Pastorius from the Maastrichtian of Italy.[2] Only the type species, A. toliapicus from the London Clay, is known from body fossils; the rest are known only by the genus's distinctive otoliths.[1]

Species

The following species are known:[3]

  • A. americanus Schwarzhans & Stringer, 2020 (Maastrichtian of Texas and Maryland, Danian of Arkansas)[1][4]
  • A. bavaricus (Koken, 1891) (Maastrichtian of Germany)
  • A. bhavnagarensis Singh, Patel & Rana, 2017 (Eocene of India)[5]
  • A. brevicauda Schwarzhans, 2010 (Maastrichtian of Germany)
  • A. brevicaudatus Lin, Steurbaut & Nolf, 2024 (Eocene of Alabama, Virginia and Maryland)[6]
  • A. neobavaricus Schwarzhans, 2012 (Paleocene of Germany)
  • A. pentlandensis Schwarzhans, 2019 (Eocene of New Zealand)
  • A. sinuocaudatus Schwarzhans, 1980 (Eocene of New Zealand)
  • A. sztrakosi Nolf & Steurbaut, 2004 (Oligocene of Italy)[7]
  • A. toliapicus König, 1825 (Eocene of the United Kingdom) (type species)
  • A. traunensis Schwarzhans, 2010 (Maastrichtian of Germany)

The species A. lerichei, known by a body fossil from the Eocene of Belgium and otoliths from the same region, is alternately placed in Ampheristus or Hoplobrotula.[8][9]

References

  1. ↑ 1.0 1.1 1.2 Schwarzhans, Werner; Stringer, Gary L. (2020-05-06). "Fish Otoliths from the Late Maastrichtian Kemp Clay (Texas, Usa) and the Early Danian Clayton Formation (Arkansas, Usa) and an Assessment of Extinction and Survival of Teleost Lineages Across the K-Pg Boundary Based on Otoliths" (in en). Rivista Italiana di Paleontologia e Stratigrafia 126 (2). doi:10.13130/2039-4942/13425. ISSN 2039-4942. https://riviste.unimi.it/index.php/RIPS/article/view/13425. 
  2. ↑ Near, Thomas J; Thacker, Christine E (18 April 2024). "Phylogenetic classification of living and fossil ray-finned fishes (Actinopterygii)". Bulletin of the Peabody Museum of Natural History 65. doi:10.3374/014.065.0101. 
  3. ↑ "PBDB". https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=35660. 
  4. ↑ Stringer, Gary; Schwarzhans, Werner (2021-09-01). "Upper Cretaceous teleostean otoliths from the Severn Formation (Maastrichtian) of Maryland, USA, with an unusual occurrence of Siluriformes and Beryciformes and the oldest Atlantic coast Gadiformes". Cretaceous Research 125. doi:10.1016/j.cretres.2021.104867. ISSN 0195-6671. Bibcode: 2021CrRes.12504867S. 
  5. ↑ "Palaeogene Fish Otoliths from Lignite Associated Succession (Cambay Formation) Khadsaliya, Bhavnagar, Gujarat, India" (in en-US). https://gondwanags.org.in/journal-of-geosciences-research-jgsr/contents/jgsr-2017-vol-2-no-1/palaeogene-fish-otoliths-from-lignite-associated-succession-cambay-formation-khadsaliya-bhavnagar-gujarat-india/. 
  6. ↑ Lin, Chien-Hsiang; Steurbaut, Etienne; Nolf, Dirk (2024-06-04). "Early Eocene fish otoliths from the eastern and southern USA" (in en). European Journal of Taxonomy 935: 203–240. doi:10.5852/ejt.2024.935.2557. ISSN 2118-9773. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/2557. 
  7. ↑ Nolf, D.; Steurbaut, E. (2004). "Otolithes de poissons de l'oligocene inferieur du Bassin liguro-piémontais oriental, Italie". Rivista Piemontese di Storia Naturale. https://www.storianaturale.org/anp/PDF%20ANP/25_2004_Nolf%20Steurbaut_Otolithes%20de%20poissons%20de%20l%27Oligocene%20inferieur%20du%20Bassin%20Liguro-Piemontais.pdf. 
  8. ↑ "PBDB". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=361046&is_real_user=1. 
  9. ↑ Schwarzhans, Werner; Mörs, Thomas; Engelbrecht, Andrea; Reguero, Marcelo; Kriwet, Jürgen (2017-02-01). "Before the freeze: otoliths from the Eocene of Seymour Island, Antarctica, reveal dominance of gadiform fishes (Teleostei)". Journal of Systematic Palaeontology 15 (2): 147–170. doi:10.1080/14772019.2016.1151958. ISSN 1477-2019. PMID 28077930. Bibcode: 2017JSPal..15..147S. 

Wikidata ☰ Q4748158 entry



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