Palaeonisciformes

Palaeonisciformes
Temporal range: Late Silurian–Cretaceous
†Palaeoniscum restoration
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: †Palaeonisciformes
Hay 1902
Suborders
  • †Palaeoniscoidei Berg 1937
  • †Platysomoidei Berg 1937
Synonyms

Palaeoniscida Moy-Thomas & Miles 1971

The Palaeonisciformes, commonly known as "palaeoniscoids" (also spelled "paleoniscoid", or alternatively "paleoniscids") are an extinct grouping of primitive ray-finned fish (Actinopterygii), spanning from the Silurian/Devonian to the Cretaceous. They are generally considered paraphyletic, but their exact relationships to living ray-finned fish are uncertain.[1] While some and perhaps most palaeoniscoids likely belong to the stem-group of Actinopteryii,[2] it has been suggested that some may belong to the crown group,[3] with some of these possibly related to Cladistia (containing bichirs) and/or Chondrostei (which contains sturgeons and paddlefish).[4] Many palaeoniscoids share a conservative body shape and a similar arrangement of skull bones,[5] though paleoniscoids as a whole exhibit considerable diversity in body shape.[6]

  1. ^ Stack, Jack; Gottfried, Michael D. (2021-09-17). "A new, exceptionally well-preserved Permian actinopterygian fish from the Minnekahta Limestone of South Dakota, USA". Journal of Systematic Palaeontology. 19 (18): 1271–1302. doi:10.1080/14772019.2022.2036837. ISSN 1477-2019. S2CID 247537869.
  2. ^ Giles, Sam; Xu, Guang-Hui; Near, Thomas J.; Friedman, Matt (2017-09-14). "Early members of 'living fossil' lineage imply later origin of modern ray-finned fishes". Nature. 549 (7671): 265–268. doi:10.1038/nature23654. ISSN 0028-0836. PMID 28854173. S2CID 205259531.
  3. ^ Caron, Abigail; Venkataraman, Vishruth; Tietjen, Kristen; Coates, Michael (2023-08-01). "A fish for Phoebe: a new actinopterygian from the Upper Carboniferous Coal Measures of Saddleworth, Greater Manchester, UK, and a revision of Kansasiella eatoni". Zoological Journal of the Linnean Society. 198 (4): 957–981. doi:10.1093/zoolinnean/zlad011. ISSN 0024-4082.
  4. ^ Friedman, Matt (March 2015). Smith, Andrew (ed.). "The early evolution of ray-finned fishes". Palaeontology. 58 (2): 213–228. doi:10.1111/pala.12150.
  5. ^ Mickle, Kathryn E.; Lund, Richard; Grogan, Eileen D. (September 2009). "Three new palaeoniscoid fishes from the Bear Gulch Limestone (Serpukhovian, Mississippian) of Montana (USA) and the relationships of lower actinopterygians". Geodiversitas. 31 (3): 623–668. doi:10.5252/g2009n3a6. ISSN 1280-9659. S2CID 128412802.
  6. ^ Engelman, Russell K.; Nicholas Gardner; Hodnett, John-Paul M. (2024-10-03). "A Review of Handbook of Paleoichthyology Volume 8a: Actinopterygii I, Palaeoniscimorpha, Stem Neopterygii, Chondrostei". Palaeontologia Electronica. 27 (3): 1–3. ISSN 1094-8074.