This list of fossil fishes described in 2013 is a list of new taxa of placoderms, fossil cartilaginous fishes and bony fishess of every kind that have been described during the year 2013. The list only includes taxa at the level of genus or species.
Newly named jawless vertebrates
Name Novelty Status Authors Age Unit Location Notes ImagesAmaltheolepis austfjordiaSp. nov ValidŽigaitė et al.DevonianA talivaliid thelodont, a species of Amaltheolepis.Amaltheolepis montiwatsoniaSp. nov ValidŽigaitė et al.DevonianA talivaliid thelodont, a species of Amaltheolepis.Amaltheolepis winsnesiSp. nov ValidŽigaitė et al.DevonianA talivaliid thelodont, a species of Amaltheolepis.CapitaspisGen. et sp. nov ValidElliottLate Silurian (Pridolian)Somerset Island FormationA cyathaspidid heterostracan. The type species is Capitaspis giblingi.Machairaspis serrataSp. nov ValidScott & WilsonEarly Devonian (Lochkovian)Delorme FormationA member of Osteostraci, a species of Machairaspis.NucleaspisGen. et sp. novValidAfanassieva & Karatajūtė-TalimaaEarly DevonianSevernaya Zemlya FormationA member of Osteostraci. The type species is Nucleaspis unica.ParaungulaspisNom. novValidAfanassieva & Karatajūtė-TalimaaEarly DevonianA member of Osteostraci; a replacement name for Ungulaspis Afanassieva & Karatajūtė-Talimaa, 1998 (preoccupied).ReticulaspisGen. et sp. novValidAfanassieva & Karatajūtė-TalimaaEarly DevonianSevernaya Zemlya FormationA member of Osteostraci. The type species is Reticulaspis menneri.RitchieichthysGen. et sp. nov ValidSansom et al.Late Ordovician (Katian)Nibil FormationA member of Arandaspida. The type species is Ritchieichthys nibili.Talivalia svalbardiaSp. nov ValidŽigaitė et al.DevonianA talivaliid thelodont, a species of Talivalia.WoodfjordiaGen. et sp. nov ValidŽigaitė et al.DevonianA turiniid thelodont. The type species is Woodfjordia collisa.
Newly named acanthodians
Name Novelty Status Authors Age Unit Location Notes ImagesMachaeraporusGen. et comb. nov ValidBurrow et al.Late SilurianStonehouse FormationA new genus for "Cheiracanthoides" stonehousensis Legault (1968).
Newly named placoderms
Name Novelty Status Authors Age Unit Location Notes ImagesEntelognathusGen. et sp. nov ValidZhu et al.Silurian (late Ludlow)Kuanti FormationThe type species is Entelognathus primordialis.Eukaia Gen. et sp. nov ValidMark-KurikDevonian (?Pragin)Turukhansk region, Northwest Siberian PlatformA fossil skull representing an Actinolepidoid incertae sedis. The type species is Eukaia elongata.Phyllolepis thomsoniSp. nov ValidLong & DaeschlerDevonian (late Famennian)Catskill FormationThis is the third species of Phyllolepis known from complete or almost complete specimens (the other two being P. orvini and P. woodwardi, and is the second member of the genus known from North America (the other being the sympatric P. rossmontia.
Cartilaginous fishes
Research
Reassessment of the anatomy of Helicoprion and a study on the phylogenetic relationships of this taxon is published by Tapanila et al. (2013). Fossils of cladodontomorph chondrichthyans (a falcatid, a ctenacanthiform and cladodontomorphs of uncertain phylogenetic placement) are described from the Early Cretaceous (Valanginian) of France by Guinot et al. (2013); this is the most recent known record of cladodontomorphs, increasing the fossil record of this group by circa 120 million years.
New taxa
Name Novelty Status Authors Age Unit Location Notes ImagesAdnetoscylliumGen. et sp. novValidGuinot et al.Late Cretaceous (Santonian to early Campanian)A hemiscylliid shark. The type species is Adnetoscyllium angloparisensis.Anomotodon genaultiSp novValidGuinot et al.Late Cretaceous (late Campanian)A mitsukurinid shark, a species of Anomotodon.Bobbodus xerxesiSp novValidHampe et al.Late PermianA eugeneodontid eugeneodontiform, a species of Bobbodus.Bransonella tribulaSp novValidElliott & HodnettPermian (early Guadalupian)Kaibab LimestoneA bransonelliform xenacanthimorph, a species of Bransonella.BritobatosGen. et comb. nov ValidClaeson, Underwood & WardLate Cretaceous (Santonian)Sahel AlmaA relative of platyrhinids; a new genus for "Raja" primarmata Woodward (1889).Burnhamia crimensisSp novValidUdovichenkoEocene (Lutetian-Priabonian)A member of Mobulidae, a species of Burnhamia .Burnhamia nessoviSp novValidUdovichenkoEocene (Ypresian)A member of Mobulidae, a species of Burnhamia .Callorhinchus torresiSp novValidOtero et al.Latest Cretaceous (late Maastrichtian)López de Bertodano FormationA chimaeriform, a species of Callorhinchus.Cantioscyllium markaguntensisSp. nov ValidKirkland, Eaton & BrinkmanLate Cretaceous (Coniacian to Santonian)Straight Cliffs FormationA ginglymostomatid carpet shark, a species of Cantioscyllium.Cederstroemia siverssoniSp novValidGuinot et al.Late Cretaceous (middle Turonian)A carpet shark of uncertain phylogenetic placement, a species of Cederstroemia.Chiloscyllium frequensSp novValidGuinot et al.Late Cretaceous (Santonian to Campanian)A hemiscylliid shark, a species of Chiloscyllium.Chiloscyllium vulloiSp novValidGuinot et al.Late Cretaceous (middle Turonian)A hemiscylliid shark, a species of Chiloscyllium.Columbusia deblieuxiSp. nov ValidKirkland, Eaton & BrinkmanLate Cretaceous (Campanian)Kaiparowits Formation Wahweap FormationA sclerorhynchid, a member of Batoidea related to sawfishes; a species of Columbusia.CristomylusGen. et 3 sp. nov ValidKirkland, Eaton & BrinkmanLate Cretaceous (Cenomanian to Campanian)Cedar Mountain Formation Dakota Formation Straight Cliffs Formation Wahweap FormationA member of Rajiformes related to guitarfishes. The type species is Cristomylus nelsoni; genus also contains C. bulldogensis and C. cifellii.DiablodontusGen. et sp. novValidHodnett, Elliott & OlsonPermian (Roadian)Kaibab LimestoneA hybodontoid hybodontiform. The type species is Diablodontus michaeledmundi.Echinorhinus wadanohanaensisSp. nov ValidKitamuraLate Cretaceous (Santonian)Hinoshima FormationA species of Echinorhinus.Eoptolamna supracretaceaSp novValidGuinot et al.Late Cretaceous (Santonian to early Campanian)An eoptolamnid lamniform shark, a species of Eoptolamna.Eosqualiolus skrovinaiSp novValidUnderwood & SchlöglMioceneLakšárska Nová Ves FormationA dalatiid, a species of Eosqualiolus.GissarodusGen. et sp. novValidIvanovCarboniferous (early Bashkirian)Khodzhir-Bulak FormationA member of Euselachii of uncertain phylogenetic placement. The type species is Gissarodus flabellatus.Glikmanius culmenisSp novValidKoot et al.Permian (Wordian)Khuff FormationA ctenacanthiform, a species of Glikmanius.Heterodontus boussioniSp novValidGuinot et al.Late Cretaceous (early Campanian)A bullhead shark. Originally described as a species of Heterodontus; subsequently transferred to the separate genus Protoheterodontus by Hovestadt (2018).Heterodontus laevisSp novValidGuinot et al.Late Cretaceous (Cenomanian to Turonian)A bullhead shark.Hybodus bugarensisSp novValidPla, Márquez-Aliaga & BotellaMiddle Triassic (Ladinian)A species of Hybodus.Hypolophodon patagoniensisSp novValidCione, Tejedor & GoinPaleoceneLefipán FormationA batomorph, a species of Hypolophodon.Iago carlaluisaiSp novValidLederEoceneCrimean PeninsulaA houndshark, a species of Iago.Jaekelotodus bagualensisSp. novValidOtero et al.Middle to late EoceneRío Baguales FormationA sand shark, a species of Jaekelotodus.KeasiusGen. et sp. et comb. novValidWeltonLate Eocene to middle MioceneA relative of the basking shark. The type species is Keasius taylori; genus also contains "Cetorhinus" parvus Leriche (1910).KhuffiaGen. et 2 sp. novValidKoot et al.Permian (Wordian)Khuff FormationA sphenacanthid. Genus contains two species: Khuffia lenis and Khuffia prolixa.NanocetorhinusGen. et sp. novValidUnderwood & SchlöglMioceneLakšárska Nová Ves FormationA neoselachian of uncertain affinities. The type species is Nanocetorhinus tuberculatus.OmanoselacheGen. et 2 sp. novValidKoot et al.Permian (Wordian)Khuff FormationA hybodontiform. Genus contains two species: Omanoselache hendersoni and Omanoselache angiolinii.PalaeotriakisGen. et comb. novValidGuinot et al.Late Cretaceous (Santonian to Campanian)A houndshark, a new genus for Paratriakis subserratus Underwood & Ward (2008) and "Thyellina" curtirostris Davis (1887). Later studies still support classification of species subserratus to genus Paratriakis.Paraetmopterus horvathiSp novValidUnderwood & SchlöglMioceneLakšárska Nová Ves FormationOriginally described as a lantern shark and a species of Paraetmopterus; subsequently reinterpreted as a sleeper shark and transferred to the separate genus Palaeocentroscymnus.Pararhincodon ornatusSp novValidGuinot et al.Late Cretaceous (Santonian to early Campanian)A parascylliid shark, a species of Pararhincodon.Paratriakis robustusSp novValidGuinot et al.Late Cretaceous (Santonian to Campanian)A shark, possibly a houndshark; a species of Paratriakis.Parvodus celsucuspusSp novValidRees et al.Early Cretaceous (Berriasian)A lonchidiid hybodont, a species of Parvodus.Planohybodus markiSp novValidPinheiro et al.Early CretaceousMalhada Vermelha Formation Missão Velha FormationA hybodontid shark, a species of Planohybodus.PlatyrhizodonGen. et 2 sp. novValidGuinot et al.Late Cretaceous (Santonian to early Campanian)A carcharhiniform shark of uncertain phylogenetic placement. The type species is Platyrhizodon gracilis; genus also contains additional new species Platyrhizodon barbei.PotobatisGen. et sp. novValidCappetta & GayetPaleocene (Danian)El Molino FormationA dasyatoid myliobatiform. The type species is Potobatis semperei.Pristiophorus striatusSpeciesValidUnderwood & SchlöglMioceneLakšárska Nová Ves FormationA sawshark, a species of PristiophorusProlatodonGen. et comb. novValidPla, Márquez-Aliaga & BotellaMiddle to Late TriassicA non-neoselachian shark related to Homalodontus; a new genus for "Polyacrodus" bucheri Cuny, Rieppel & Sander (2001) and "Polyacrodus" contrarius Johns, Barnes & Orchard (1997). Koot et al. (2015) and Manzanares et al. (2018) considered Prolatodon to be a junior synonym of the genus Omanoselache.Protosqualus barringtonensisSp novValidGuinot et al.Late Cretaceous (Cenomanian)A squalid shark, a species of Protosqualus.Pseudocorax duchaussoisiSp novValidGuinot et al.Late Cretaceous (middle Turonian)An anacoracid shark, a species of Pseudocorax.PseudomyledaphusGen. et sp. nov ValidKirkland, Eaton & BrinkmanLate CretaceousMilk River Formation Straight Cliffs FormationA member of Rajiformes related to guitarfishes. The type species is Pseudomyledaphus madseni.ReesodusGen. et sp. et comb. novValidKoot et al.Carboniferous (Tournaisian) to Permian (Wordian)A hybodontiform. The type species is Reesodus underwoodi; genus also contains "Lissodus" wirksworthensis Duffin (1985) and "Lissodus" pectinatus Lebedev (1996).ScyliorhinothecaGen. et sp. novValidKiel, Peckmann & SimonLate EoceneCatshark egg capsules. The type species is Scyliorhinotheca goederti.Scyliorhinus monsaugustusSp novValidGuinot et al.Late Cretaceous (late Campanian)A catshark, a species of Scyliorhinus.Scyliorhinus muelleriSp novValidGuinot et al.Late Cretaceous (middle Turonian)A catshark, a species of Scyliorhinus.SigmoscylliumGen. et comb. et sp. novValidGuinot et al.Late Cretaceous (Turonian to early Campanian)A catshark. A new genus for "Palaeoscyllium" striatum Underwood & Ward (2008); genus also contains a new species Sigmoscyllium acuspidatum.Squalicorax bernardeziSp novValidGuinot et al.Late Cretaceous (middle Turonian)An anacoracid shark, a species of Squalicorax.TeresodusGen. et sp. novValidKoot et al.Permian (Wordian)Khuff FormationA hybodontiform. The type species is Teresodus amplexus.Texatrygon brycensisSp. nov ValidKirkland, Eaton & BrinkmanLate Cretaceous (Campanian)Wahweap FormationA member of Ptychotrygonidae, possibly a member of Batoidea related to sawfishes; a species of Texatrygon.TingitaniusGen. et sp. nov