Platysomus

Platysomus Temporal range: Early Carboniferous–Late Permian PreꞒ Ꞓ O S D C P T J K Pg N
Platysomus gibbosus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Platysomiformes
Family:	†Platysomidae
Genus:	†Platysomus Agassiz, 1833
Type species
†Platysomus striatus Agassiz, 1833
Other species
†Platysomus bashkirus Minich, 1992 †Platysomus biarmicus Eichwald, 1860 †Platysomus palmaris Cope, 1891 †Platysomus solikamskensis Minich, 1998 †Platysomus soloduchi Minich, 1992
Synonyms
†Schaefferichthys Dalquest, 1966

Platysomus (from Greek: πλατύς platys, 'broad' and Greek: σῶμα sôma 'body')^[1] is an extinct genus of ray-finned fish that lived in the Carboniferous and Permian periods. Fossils have been found worldwide.

Platysomus was about 18 centimetres (7.1 in) long, and shaped similarly to the discus fish, having the same flattened body and elongated dorsal and anal fins. Its jaws were placed vertically under the braincase, giving it a wide gape. Platysomus is thought to have fed on plankton, and lived in both fresh and salt water.^[2]

References

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Actinopterygian genera

Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Infraphylum: Gnathostomata Superclass: Osteichthyes
Gnathostomata see Gnathostomata Actinopterygii see below↓

Actinopterygii
Actinopterygii †Austelliscus †Cheirolepis †Cuneognathus †Dialipina? †Kentuckia †Krasnoyarichthys †Ligulalepis? †Limnomis †Meemannia †Moythomasia †Naxilepis? †Orvikuina? †Osorioichthys †Palaeoneiros †Pickeringius †Raynerius †Stegotrachelus †Tegeolepis †Terenolepis? †Howqualepididae Donnrosenia Howqualepis †Mimiidae Gogosardina Mimipiscis Post-Devonian taxa see below↓

Post-Devonian taxa
Post-Devonian taxa †Adroichthys †Aetheretmon †Agecephalichthys †Amblypterina †Ambodipia †Aneurolepis †Angatubichthys †Apateolepis †Arratiaichthys †Asarotus †Australichthys †Avonichthys †Beagiascus †Belichthys †Bethesdaichthys †Birgeria †Bishofia †Bluefieldius †Blourugia †Boreolepis †Brachydegma †Brachypareion †Brazilichthys †Burguklia †Carbonilepis †Caruichthys †Centrolepis †Charleuxia †Chichia †Coccocephalus †Concentrilepis †Cornuboniscus †Cosmolepis †Cosmoptychius †Cretolepis †Cylindrichthys †Daqingshaniscus †Disichthys †Dmitrevichthys †Drydenius †Duwaichthys †Dwykia †Elpisopholis †Ganolepis †Gardinerichthys †Gardinerpiscis †Gondwanichthys †Grandfieldia †Guaymayenia †Guntherichthys †Gyrolepidoides †Huanghelepis †Hyllingea †Illiniichthys †Inichthys †Irajapintoseidon †Itararichthys †Kalops †Kansasiella †Karaunguria †Kazanichthys †Kelliaichthys †Kenderlichthys †Khantausia †Kompasia †Kutaichthys †Lambeia †Lanarkichthys †Lawrenciella †Leptogenichthys †Letovichthys †Lineagruan †Luederia †Mansfieldiscus †Megapteriscus †Melanecta †Mesembrioniscus †Mesonichthys †Mesopoma †Ministrella †Monesedeiphus †Muensterichthys †Myriolepis †Nematoptychius †Neuburgella †Notacmon †Novogonatodus †Nozamichthys †Oxypteriscus †Pacorichthys †Palaeobergia †Paphosiscus †Paradrydenius †Paralogoniscus †Peleichthys †Piratata †Phanerorhynchus †Phanerosteon †Praolepis †Protamblyptera †Pseudohaplolepis †Psilichthys †Pteroniscus †Rastrolepis †Reticulolepis †Roslerichthys †Rubidus †Samarichthys †Santosichthys †Sceletophorus †Schizolepis †Senekichthys †Sinkiangichthys †Sinoniscus †Sixtelia †Sphaerolepis †Spinofacia †Strepheoschema †Sundayichthys †Tanypterichthys †Tanyrhinichthys †Tienshaniscus †Trachelacanthus †Trawdenia †Turgoniscus †Ufalepis †Urosthenes †Usclasichthys? †Uydenia †Uydenichthys †Varialepis †Wayaobulepis †Westlepis †Whiteichthys †Willomorichthys †Woodichthys †Xingshikous †Yogoniscus †Yaomoshania †Zhongweilepis †Acrolepidae Acrolepis Acropholis Challaia Kasanilepis Namaichthys Plegmolepis Progyrolepis? Watsonichthys †Aeduellidae Aeduella Bourbonnella Decazella Neslovicella Platysella Puertollanichthys Schafeevus Spinarichthys Westollia †Aesopichthyidae Aesopichthys Proceramala †Amblypteridae Amblypterus Daphnaechelus Korutichthys? Lawnia Paramblypterus Tchekardichthys Tholonosteon Tholonotus †Bobasatraniiformes Dorypterus Bobasatraniidae Bobasatrania Ebenaqua Ecrinesomus? †Canobiidae Canobius Schaefferius †Discordichthyidae Discordichthys Geryonichthys Mamulichthys Mutovinia †Eigiliidae Eigilia Strelnia †Elonichthyidae Alilepis Elonichthys Palaeostrugia? Meisenheimichthys Rhabdolepis? †Eurynotiformes Mesolepis Paramesolepis Proteurynotus Wardichthys Amphicentridae Amphicentrum Cheirodopsis Eurynotus Styracopteridae Benedenius Fouldenia Styracopterus †Eurynotoidiformes Adzvalepis Alvinichthys Eurynotoides Isadia Kichkassia Lapkosubia Minicholepis Vologdinia †Gonatodidae Gonatodus Pseudogonatodus Usolia †Guildayichthyidae Discoserra Guildayichthys †Haplolepidae Andrewsolepis Blairolepis Braccohaplolepis Haplolepis Millerolepis Parahaplolepis Protohaplolepis Pyritocephalus †Igornichthyidae Commentrya Igornella Igornichthys Setlikia †Palaeoniscidae Atherstonia Cteniolepidotrichia Dicellopyge Ferganiscus Gyrolepis Palaeoniscinotus Palaeoniscum Palaeothrissum Shuniscus Triassodus Weixiniscus †Platysomidae Aestuarichthys Dorsolepis Kargalichthys Ningxiaplatysomus Paranaichthys Platysomus Schaefferichthys Sinoplatysomus Tompoichthys †Ptycholepidae Acrorhabdus Ardoreosomus Boreosomus Chungkingichthys Ptycholepis Yuchoulepis †Pygopteridae Briveichthys Progyrolepis? Pygopterus Zaborichthys †Rhadinichthyidae Cycloptychius Cyranorhis Mentzichthys Pteronisculus? Rhadinichthys Wendyichthys †Saurichthyiformes Yelangichthys Saurichthyidae Costasaurichthys Eosaurichthys Lepidosaurichthys Saurichthys Saurorhynchus Sinosaurichthys †Tarrasiidae Paratarrasius Tarrasius †Turseoidae Pteronisculus? Turfania? Turseodus †Uighuroniscidae Indaginilepis Uighuroniscus Cladistia see Cladistia includes bichirs Actinopteri Chondrostei see Chondrostei includes sturgeons and paddlefish Neopterygii see Neopterygii

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