Semionotiformes

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii

Infraclassis: Holostei
Division: Ginglymodi
Ordo: †Semionotiformes
Subordo: †Semionotoidei
Familiae: †Callipurbeckiidae – †Dapediidae – †Eosemionotidae – †Macrosemiidae – †Semionotidae
Genera inc. sedis: †Alleiolepis – †Allelepidotus – †Aphelolepis – †Austrolepidotus – †Callopteus – †Corunegenys – †Enigmatichthys – †Heterostrophus – †Luoxiongichthys – †Orthurus – †Pericentrophorus – †Plesiolepidotus – †Prionopleurus – †Sangiorgioichthys – †Serrolepis – †Sinosemionotus – †Sphathiurus
Name

Semionotiformes Arambourg & Bertin, 1958 sensu Olsen & McCune, 1991
References
Primary references

Arambourg, C. & Bertin, L. 1958. On the fossil fishes found by Mr. Gardner in the Province of Ceara, in the North of Brazil. Edinburgh New Philosophical Journal 30: 82–84. Reference page.

Additional references

López-Arbarello, A.; Alvarado-Ortega, J. 2011: New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico. Zootaxa, 2749: 1–24. Preview PDF
Olsen, P.E. & McCune, A.R. 1991. Morphology of the Semionotus elegans species group from the early Jurassic part of the Newark Supergroup of eastern North America with comments on the family Semionotidae (Neopterygii). Journal of Vertebrate Paleontology 11: 269–292. Reference page.

Links

The Paleobiology Database
Semionotiformes in FishBase,
Froese, R. & Pauly, D. (eds.) 2022. FishBase. World Wide Web electronic publication, www.fishbase.org, version 08/2021.

Semionotiformes is an order of primitive, ray-finned, primarily freshwater fish from the Middle Triassic (Anisian)[1] to the Late Cretaceous (Maastrichtian).[2] The best-known genus is Semionotus of Europe and North America.[3] Their closest living relatives are gars (Lepisosteidae), with both groups belonging to the clade Ginglymodi within the Holostei.[1]
Classification

Order †Semionotiformes Arambourg & Bertin 1958 sensu López-Arbarello 2012[4][5][6][7]
Genus ?†Orthurus Kner 1866
Genus †Sangiorgioichthys Tintori & Lombardo 2007
Genus †Luoxiongichthys Wen et al. 2011
Genus †Aphanepygus Bassani 1879
Genus †Placidichthys Brito 2000
Family †Pleurolepididae Lütken 1871
Genus †Pleurolepis Agassiz 1863 non Quenstedt 1852
Family †Macrosemiidae Wagner 1860a corrig. Cope 1889 sensu Murray & Wilson 2009 [Macrosemii Wagner 1860a]
Genus †Eusemius Vetter 1881
Genus †Blenniomoeus Costa 1850 [Calignathus Costa 1853]
Genus †Enchelyolepis Woodward 1918
Genus †Palaeomacrosemius Ebert, Lane & Kolbl-Ebert 2016
Genus †Voelklichthys Arratia & Schultze 2012
Genus †Notagogus Agassiz 1833-1844 [Neonotagogus Bravi 1994]
Genus †Agoultichthys Murray & Wilson 2009
Genus †Histionotus Egerton 1854
Genus †Propterus Agassiz 1833-1844 [Rhynchoncodes Costa 1850]
Genus †Macrosemiocotzus González-Rodríguez, Applegate & Espinosa-Arrubarrena 2004
Genus †Legnonotus Egerton 1853
Genus †Macrosemius Agassiz 1833-1844
Family †Semionotidae Woodward 1890 sensu López-Arbarello 2012
Genus †Semionotus Agassiz 1832
Genus †Sargodon Plieninger 1847
Family †Callipurbeckiidae López-Arbarello 2012 [Paralepidotidae Hadding 1919 ex Lund 1920]
Genus †Occitanichthys López-Arbarello & Wencker 2016
Genus †Semiolepis Lombardo & Tintori 2008
Genus †Paralepidotus Stolley 1919
Genus †Macrosemimimus Schröder, López-Arbarello & Ebert 2012
Genus †Tlayuamichin López-Arbarello & Alvarado-Ortega 2011
Genus †Callipurbeckia López-Arbarello 2012

Timeline of genera
Hadrodus priscus tooth, Menuha Formation (Upper Cretaceous), southern Israel
References

Romano, Carlo (2021). "A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes". Frontiers in Earth Science. 8: 672. doi:10.3389/feart.2020.618853. ISSN 2296-6463.
Blanco, Alejandro; Szabó, Márton; Blanco-Lapaz, Àngel; Marmi, Josep (January 2017). "Late Cretaceous (Maastrichtian) Chondrichthyes and Osteichthyes from northeastern Iberia". Palaeogeography, Palaeoclimatology, Palaeoecology. 465: 278–294. Bibcode:2017PPP...465..278B. doi:10.1016/j.palaeo.2016.10.039.
Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Retrieved 2011-05-17.
Haaramo, Mikko (2007). "Ginglymodi – gars and relatives". Mikko's Phylogeny Archive. Retrieved 30 December 2016.
Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. ISBN 9781118342336.
van der Laan, Richard (2016). "Family-group names of fossil fishes".
López-Arbarello, Adriana (2012). "Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii)". PLOS ONE. 7 (7): e39370. Bibcode:2012PLoSO...739370L. doi:10.1371/journal.pone.0039370. PMC 3394768. PMID 22808031.