Cosmoptychius

Cosmoptychius
Temporal range: Viséan[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Family: †Cosmoptychiidae
Gardiner, 1963
Genus: †Cosmoptychius
Traquair, 1877
Species:
†C. striatus
Binomial name
†Cosmoptychius striatus
(Agassiz, 1835)
Synonyms
  • †Amblypterus striatus Agassiz, 1835
  • †Cosmoptygius Traquair, 1877 (misspelling)

Cosmoptychius is an extinct genus of freshwater and estuarine ray-finned fish that lived during the Mississippian epoch.[1][2] It contains a single species, C. striatus from the Visean of Scotland.[3] It has a wide stratigraphic range in the Wardie Shale, with many specimens known.[4][5]

Initially classified as either a palaeonisciform (a now-paraphyletic group of basal actinopterygians)[6] or the earliest stem-group neopterygian, it is now generally considered a stem-group actinopteran.[7]

References

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2009-02-20. Retrieved 2009-04-24.
  2. ^ Coates, M. I. (1993). "Actinopterygian and acanthodian fishes from the Viséan of East Kirkton, West Lothian, Scotland". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 84 (3–4): 317–327. Bibcode:1993EESTR..84..317C. doi:10.1017/S0263593300006131. ISSN 1755-6929.
  3. ^ "PBDB Taxon". paleobiodb.org. Retrieved 2024-06-18.
  4. ^ Gardiner, B. G. (1985). "Actinopterygian fish from the Dinantian of Foulden, Berwickshire, Scotland". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 76 (1): 61–66. doi:10.1017/S0263593300010312. ISSN 1473-7116.
  5. ^ Dornburg, Alex; Townsend, Jeffrey P.; Friedman, Matt; Near, Thomas J. (2014-08-08). "Phylogenetic informativeness reconciles ray-finned fish molecular divergence times". BMC Evolutionary Biology. 14 (1): 169. Bibcode:2014BMCEE..14..169D. doi:10.1186/s12862-014-0169-0. ISSN 1471-2148. PMC 4236503. PMID 25103329.
  6. ^ Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016-02-22). Fishes of the World. Wiley. ISBN 978-1-118-34233-6.
  7. ^ Xu, Guang-Hui; Gao, Ke-Qin; Finarelli, John A. (2014-06-07). "A revision of the Middle Triassic scanilepiform fish Fukangichthys longidorsalis from Xinjiang, China, with comments on the phylogeny of the Actinopteri". Journal of Vertebrate Paleontology. 34 (4): 747–759. Bibcode:2014JVPal..34..747X. doi:10.1080/02724634.2014.837053. ISSN 0272-4634.


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