Lamprimorpha

Lamprimorpha is a superorder of marine ray-finned fishes, representing a basal group of the highly diverse clade Acanthomorpha. Represented today only by the order Lampriformes (containing oarfish, crestfish, and opahs, among others), recent studies have recovered other basal fossil species of the group (most of which were previously classified in other clades) dating as far back as the Cenomanian stage of the Late Cretaceous. Some of these fossil taxa, such as the paraphyletic genus Aipichthys, are among the oldest known fossil acanthomorphs, and overall they appear to have been a major component of the marine fish fauna at that time. Lamprimorpha is thought to be the sister group to the superorder Paracanthopterygii, which contains cod, dories, and trout-perches; however, Lamprimorpha may instead be sister to Acanthopterygii.^{[1][2][3][4][5]}

Lamprimorpha Temporal range: Cenomanian–present PreꞒ Ꞓ O S D C P T J K Pg N
Giant oarfish (Regalecus glesne)
Fossil of "Aipichthys" velifer
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
(unranked):	Acanthomorpha
Superorder:	Lamprimorpha Davesne et al, 2014
Subdivisions
Lampriformes †Aipichthyidae †Aipichthyoididae †Pharmacichthyidae †Pycnosteroididae Others, see text
Synonyms
Lampridomorpha Davesne et al, 2014 Lampripterygii Betancur et al, 2017

It was initially described as Lampridomorpha, although this is considered a misspelling by Fishes of the World, which refers to it as Lamprimorpha. Also synonymous with the group is the division Lampripterygii.^[6][7]

Taxonomy

The following taxa are known:^[2][3][4]

• Genus †Freightichthys
• Genus †Zoqueichthys
• Family †Pharmacichthyidae
• Family †Pycnosteroididae? (alternatively considered stem-paracanthopterygians)^[5]
• Superfamily †Aipichthyoidea
  • Family †Aipichthyidae
  • Family †Aipichthyoididae
• Order Lampriformes
  • Genus †Nardovelifer
  • Genus †Whitephippus^[8]
  • Suborder Bathysomi
    • Genus †Bathysoma
    • Genus †Palaeocentrotus
    • Genus †Veronavelifer
    • Genus †Wettonius
    • Family Lampridae
    • Family †Turkmenidae
    • Family Veliferidae
  • Suborder Taeniosomi
    • Family Lophotidae
    • Family Radiicephalidae
    • Family Trachipteridae
    • Family Regalecidae

References

1. Delbarre, Daniel J.; Davesne, Donald; Friedman, Matt (2016-07-02). "Anatomy and relationships of † Aipichthys pretiosus and †' Aipichthys ' nuchalis (Acanthomorpha: Lampridomorpha), with a review of Late Cretaceous relatives of oarfishes and their allies". Journal of Systematic Palaeontology. 14 (7): 545–567. Bibcode:2016JSPal..14..545D. doi:10.1080/14772019.2015.1078538. ISSN 1477-2019. S2CID 86575270.
2. Davesne, Donald; Friedman, Matt; Barriel, Véronique; Lecointre, Guillaume; Janvier, Philippe; Gallut, Cyril; Otero, Olga (2014). "Early fossils illuminate character evolution and interrelationships of Lampridiformes (Teleostei, Acanthomorpha): Fossils and Lampridiformes Interrelationships". Zoological Journal of the Linnean Society. 172 (2): 475–498. doi:10.1111/zoj.12166.
3. Davesne, Donald; Gallut, Cyril; Barriel, Véronique; Janvier, Philippe; Lecointre, Guillaume; Otero, Olga (2016). "The Phylogenetic Intrarelationships of Spiny-Rayed Fishes (Acanthomorpha, Teleostei, Actinopterygii): Fossil Taxa Increase the Congruence of Morphology with Molecular Data". Frontiers in Ecology and Evolution. 4. doi:10.3389/fevo.2016.00129. ISSN 2296-701X.
4. Brownstein, Chase Doran; Near, Thomas J (2023-10-16). "Evolutionary origins of the lampriform pelagic radiation". Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlad142. ISSN 0024-4082.
5. 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.
6. Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016-02-22). Fishes of the World. Wiley. doi:10.1002/9781119174844. ISBN 978-1-118-34233-6.
7. Betancur-R, Ricardo; Wiley, Edward O.; Arratia, Gloria; Acero, Arturo; Bailly, Nicolas; Miya, Masaki; Lecointre, Guillaume; Ortí, Guillermo (2017-07-06). "Phylogenetic classification of bony fishes". BMC Evolutionary Biology. 17 (1): 162. Bibcode:2017BMCEE..17..162B. doi:10.1186/s12862-017-0958-3. ISSN 1471-2148. PMC 5501477. PMID 28683774.
8. Davesne, Donald; Andrews, James V.; Beckett, Hermione T.; Giles, Sam; Friedman, Matt (2024-01-09). "Three-dimensional anatomy of the early Eocene Whitephippus (Teleostei, Lampriformes) documents parallel conquests of the pelagic environment by multiple teleost lineages". Journal of Vertebrate Paleontology. doi:10.1080/02724634.2023.2284998. ISSN 0272-4634.