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Extinct order of fishes
Semionotiformes is an order of ray-finned fish known from the Middle Triassic (Anisian) to the Late Cretaceous (Maastrichtian). Their closest living relatives
Semionotiformes
Order of fishes
Ginglymodi that are more closely related to gar than to the extinct Semionotiformes, the other major grouping of ginglymodians. They are one of two extant
Lepisosteiformes
Clade of ray-finned fishes
family Lepidotidae) in the order Lepisosteiformes, the extinct orders Semionotiformes and Kyphosichthyiformes, and various other extinct taxa. Ginglymodi
Ginglymodi
Class of ray-finned bony fishes
Ginglymodi Cope 1871 Order †Dapediiformes Thies & Waschkewitz 2015 Order †Semionotiformes Arambourg & Bertin 1958 Order Lepisosteiformes Hay 1929 (gars) Teleosteomorpha
Actinopterygii
List of life forms
During the time of the deposition of the Niobrara Chalk, much life inhabited the seas of the Western Interior Seaway. By this time in the Late Cretaceous
Paleobiota of the Niobrara Formation
Paleobiota_of_the_Niobrara_Formation
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Legnonotus Egerton, 1854
Legnonotus
Group of bony fish
million years ago. Ginglymodi comprises three orders: Lepisosteiformes, Semionotiformes and Kyphosichthyiformes. Lepisosteiformes includes 1 family, 2 genera
Holostei
Fossil-bearing formation in Germany
Ebert, Martin (May 2012). "Macrosemimimus, gen. nov. (Actinopterygii, Semionotiformes), from the Late Jurassic of Germany, England, and France". Journal
Paleobiota of the Solnhofen Limestone
Paleobiota_of_the_Solnhofen_Limestone
Extinct genus of fishes
Acentrophoridae. It is generally referred to the ginglymodian order Semionotiformes. However, the genus has been described as "enigmatic" and "pending
Acentrophorus
Geological formation in Australia
Description Images Family: Semionotiformes Semionotus sp. Family: Semionotiformes Cleithrolepis sp. Family: Semionotiformes Acentrophorus sp. Family: Palaeoniscidae
Ashfield_Shale
Genus of semionotiform fish
until it was moved to the new genus in 1990. Formerly placed in the Semionotiformes, more recent morphological studies indicate that it is more closely
Araripelepidotes
Subclass of fishes
Amiiformes, the bowfin Clade Ginglymodi Order †?Dapediiformes Order †Semionotiformes Order Lepisosteiformes, the gars Clade Teleosteomorpha Order †Prohaleciteiformes
Neopterygii
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Notagogus Agassiz, 1843
Notagogus
Extinct order of fishes
relatives are gars, with them being typically placed as nested within the Semionotiformes. Many members of the family have elongated dorsal fins, often associated
Macrosemiidae
Extinct order of fishes
among the others of the group included, those being Lepisosteiformes, Semionotiformes, Macrosemiiformes, Halecomorphi and Teleostei. As a means to avoid
Pycnodontiformes
Extinct genus of ray-finned fishes
new species of Dapedium LEACH, 1822 (Actinopterygii, Neopterygii, Semionotiformes) from the Early Jurassic of South Germany" (PDF). Palaeodiversity.
Dapedium
Extinct family of ray-finned fishes
dapediid, and Dapediidae was recovered within the ginglymodian order Semionotiformes as the sister group of Macrosemiidae. Gouiric-Cavalli, S.; Iglesias
Dapediidae
Extinct order of fishes
Kyphosichthyiformes Sangiorgioichthys aldae Sangiorgioichthys valmarensis Semionotiformes Lepisosteiformes Watsonulus eugnathoides Ionoscopiformes Amiiformes
Ionoscopiformes
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Callipurbeckiidae Genus: †Paralepidotus Stolley, 1919
Paralepidotus
Extinct genus of fishes
Ginglymodi Semionotiformes Sangiorgioichthys Macrosemiidae Luoxiongichthys Notagogus Macrosemius Propterus Semionotidae Semionotus Callipurbeckiidae Semiolepis
Scheenstia
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Macrosemius Agassiz, 1834
Macrosemius
Geologic formation in Brazil
Petra, R.; Brito, P. (2022). "Lophionotus parnaibensis, sp. nov. (Semionotiformes, Semionotidae) in the Upper Jurassic of the Parnaíba Basin, Northeastern
Pastos_Bons_Formation
Geologic formation in France
Longisquama from the Madygen Formation Pericentrophorus P. minimus Semionotiformes Resembles Acentrophorus, originally placed as a “transitional form”
Grès_à_Voltzia
Extinct genus of fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Enigmatichthys
Gibson (2013). "A new hump-backed ginglymodian fish (Neopterygii, Semionotiformes) from the Upper Triassic Chinle Formation of southeastern Utah". Journal
Paleobiota of the Chinle Formation
Paleobiota_of_the_Chinle_Formation
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Superfamily: †Semionotoidea Family: †Semionotidae Genus: †Semionotus
Semionotus
Extinct genus of fishes
ornatus (Agassiz, 1834) Heterolepidotus pectoralis (Bellotti, 1857) → Semionotiformes indet. Heterolepidotus radio-punctatus (Agassiz, 1844) → Pholidophorus
Heterolepidotus
Genus of fishes (fossil)
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Lepidotes
Geological formation in Spain
Gallo, Valéria (2018-12-01). "Quasimodichthys gen. nov. (Neopterygii: Semionotiformes): A morphological and ontogenetic study". Journal of South American
La_Huérguina_Formation
Extinct genus of fishes
Adriana; Codorniú, Laura (2007-12-12). "Semionotids (Neopterygii, Semionotiformes) from the Lower Cretaceous Lagarcito Formation, San Luis Province,
Austrolepidotes
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Genus: †Pericentrophorus Jörg, 1969 Species: †P. minimus Binomial name
Pericentrophorus
Extinct family of ray-finned fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Obaichthyidae
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Eosemionotus Stolley, 1919 Type species
Eosemionotus
Prehistoric amphibians (Capitosauridae, Trematosaurinae), ray finned fish (Semionotiformes and Palaeoniscidae), cartilaginous fish (Xenacanthida) and insects
List_of_fossil_sites
Massachusetts, US A site that produces abundant fish remains, including Semionotiformes, Diplurus, & Redfieldius. El Mono Formation Late Triassic Atacama,
List_of_lagerstätten
Geological formation in southern China
reported from the formation: Fish Omanoselache contrarius ?Parvodus sp. ?Semionotiformes indet. Brachiopods Mentzelia sp. Nudispiriferina sp. Bivalves Asoella
Yangliujing_Formation
Extinct genus of fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Uarbryichthys
Extinct genus of ray-finned fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Kyphosichthys
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Propterus Agassiz, 1834
Propterus
Geological unit
shark Planohybodus P. ensis Polyacrodus P. parvidens, P. brevicostatus Ocloedus Pycnodontiform Coccolepis Coccolepidid Semionotiformes, Albuliformes
Wadhurst_Clay_Formation
Geological formation in Argentina
López-Arbarello and L. Codorniú. 2007. Semionotids (Neopterygii, Semionotiformes) from the Lower Cretaceous Lagarcito Formation, San Luis Province,
Lagarcito_Formation
Jurassic geologic formation in Germany
Knochenfisch Lepidotes elvensis (Blainville 1818) (Actinopterygii, Semionotiformes) aus dem Oberlias (Unter-Toarcium) von Grimmen in der DDR". Neues Jahrbuch
Grimmen_Formation
Genus of fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Lepisosteus
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Enchelyolepis Woodward, 1918 Type species
Enchelyolepis
Geological formation in Brazil
Lepisosteidae Indet. Indeterminate Mawsonia M. gigas A mawsoniid coelacanth Semionotiformes Indet. Indeterminate Tribodus T. sp. A hybodont Lonchidionoides L.sp
Quiricó_Formation
1304:1-104 D. Thies. 1989. Lepidotes gloriae, sp. nov. (Actinopterygii: Semionotiformes) from the Late Jurassic of Cuba. Journal of Vertebrate Paleontology
List of fossiliferous stratigraphic units in the Caribbean
List_of_fossiliferous_stratigraphic_units_in_the_Caribbean
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Orthurus Kner, 1866
Orthurus
Genus of fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Atractosteus
Geological formation in Uruguay
Indeterminate Tacuarembó Department, Uruguay Kimmeridgian An fish Semionotiformes Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian A
Tacuarembó_Formation
Evolution of fish
first appeared in the fossil record during the Triassic. Semionotus Semionotiformes are an extinct order of holostean ray-finned fish that existed from
Timeline_of_fish_evolution
Fossil flora and fauna in the Posidonia Shale, Germany
new species of Dapedium Leach, 1822 (Actinopterygii, Neopterygii, Semionotiformes) from the Early Jurassic of South Germany" (PDF). Palaeodiversity.
Paleobiota of the Posidonia Shale
Paleobiota_of_the_Posidonia_Shale
Geologic formation in Cuba
99–101 Thies, D (1989), "Lepidotes gloriae, sp. nov. (Actinopterygii: Semionotiformes) from the Late Jurassic of Cuba" (PDF), Journal of Vertebrate Paleontology
Jagua_Formation
Cretaceous Rhadinichthys (Traquair, 1877), a Carboniferous bony fish Semionotiformes indet. Barona arcuata (Calisto & Piñeiro, 2019), a Late Carboniferous
Paleontology_in_Uruguay
Extinct genus of fishes
Lukardis C. M. (2016-09-01). "New callipurbeckiid genus (Ginglymodi: Semionotiformes) from the Tithonian (Late Jurassic) of Canjuers, France". PalZ. 90
Callipurbeckia
C.-K. (2025). "Taxonomic revision of †Guizhoubrachysomus minor (†Semionotiformes, Ginglymodi) from the Middle Triassic (Ladinian) Xingyi Biota in Guizhou
2025_in_paleoichthyology
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Genus: †Corunegenys Wade, 1942 Species: †C. bowralensis Binomial name
Corunegenys
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Histionotus Egerton, 1854 Species: †H
Histionotus
Triassic (Ladinian) Meride Limestone Italy Switzerland A member of Semionotiformes. Eosemionotus minutus Sp. nov Valid López-Arbarello et al. Middle Triassic
2019_in_paleoichthyology
Paleontological site in France
Pleuropholis P. thiolleri Pleuropholidae Propterus P. microstomus Semionotiformes Material from Cerin was previously described as Histionotus falsani
Cerin_Lagerstätte
Geological formation in India
suggested to be very similar to the Cretaceous pycnodont Stephanodus. Semionotiformes Indeterminate Paikasigudem village Kota limestone ridge Lingal-Metpalli
Kota_Formation
Gibson (2013). "A new hump-backed ginglymodian fish (Neopterygii, Semionotiformes) from the Upper Triassic Chinle Formation of southeastern Utah". Journal
2013_in_paleoichthyology
Extinct genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Genus: †Alleiolepis Heller, 1953 Species: †A. kohlmanni Binomial name
Alleiolepis
López-Arbarello; Martin Ebert (2012). "Macrosemimimus, gen. nov. (Actinopterygii, Semionotiformes), from the Late Jurassic of Germany, England, and France". Journal
2012_in_paleoichthyology
species of Sangiorgioichthys Tintori & Lombardo, 2007 (Actinopterygii; Semionotiformes) from the Pelsonian (Anisian, Middle Triassic) of Guizhou Province
2014_in_paleoichthyology
Jurassic sandstone formation of the southwestern United States
semionotid semionotiform, probably related to the genus Semionotus. Semionotiformes are the only properly identified bony fishes from the formation, including
Kayenta_Formation
Extinct genus of ray-finned fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Luoxiongichthys
Species of fish
(Sarcopterygii), paprskoploutví (Actinopterygii) [chrupavcití (Chondrostei), kostnatí (Neopterygii): kostlíni (Semionotiformes) – bezostní (Clupeiformes)] v t e
Monognathus_ahlstromi
large vidalamiin relative of bowfins. †Paralepidosteus Albian to Campanian Tanout, Zinder, Niger One of the latest surviving genera of Semionotiformes.
List of vertebrate fauna of the Campanian stage
List_of_vertebrate_fauna_of_the_Campanian_stage
Chondrichthyes Indeterminate Actinopterygii Indeterminate Amiidae Indeterminate Semionotiformes Indeterminate Pycnodontiformes Anomoeodus caddoi Lissamphibia Indeterminate
Holly_Creek_Formation
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Genus: †Paralepidosteus Arambourg & Joleaud, 1943
Paralepidosteus
Extinct genus of ray-finned fishes
Fuyuanichthys Kyphosichthys Lashanichthyidae Lashanichthys Yudaiichthys †Semionotiformes Hoyasotes Lepidhoyas Lophionotus Neosemionotus? Quasimodichthys Semionotus
Sargodon
new species of Dapedium LEACH, 1822 (Actinopterygii, Neopterygii, Semionotiformes) from the Early Jurassic of South Germany" (PDF). Palaeodiversity.
2011_in_paleoichthyology
Extinct genus of fishes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Family: †Macrosemiidae Genus: †Petalopteryx Pictet, 1850
Petalopteryx
Geologic formation in Mexico
Rhinopristiformes Only chondrichthyan known from Tlayúa Tlayuamichin T. iztli Semionotiformes Specific name translates to "obsidian", after the colour of the scales
Tlayúa_Formation
Jurassic geological formation in Italy
Tunnel Monte Pasubio Isolated Teeth & Scales Previously referred to Semionotiformes and/or the genus Lepidotes. Gyrodus? G. trigonus? Aff. G.? sp. Pernigotti
Rotzo_Formation
Paiva; Valéria Gallo (2018). "Quasimodichthys gen. nov. (Neopterygii: Semionotiformes): A morphological and ontogenetic study". Journal of South American
2018_in_paleoichthyology
Genus of fishes
Animalia Phylum: Chordata Class: Actinopterygii Clade: Ginglymodi Order: †Semionotiformes Genus: †Aphelolepis Heller, 1953 Species: †A. delpi Binomial name †Aphelolepis
Aphelolepis
Lukardis C. M. Wencker (2016). "New callipurbeckiid genus (Ginglymodi: Semionotiformes) from the Tithonian (Late Jurassic) of Canjuers, France". PalZ (Paläontologische
2016_in_paleoichthyology
Extinct genus of fishes
classification Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: †Semionotiformes? Family: †Semionotidae? Genus: †Paracentrophorus Piveteau, 1940 Binomial
Paracentrophorus
Extinct genus of fishes
A.; Ebert, M. (2012). "Macrosemimimus, gen. nov. (Actinopterygii, Semionotiformes), from the Late Jurassic of Germany, England, and France". Journal
Macrosemimimus
Petra, R.; Brito, P. (2022). "Lophionotus parnaibensis, sp. nov. (Semionotiformes, Semionotidae) in the Upper Jurassic of the Parnaíba Basin, Northeastern
2022_in_paleoichthyology
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