2020 in paleoichthyology
This list of fossil fishes described in 2020 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes, and other fishes of every kind that were described during the year 2020, as well as other significant discoveries and events related to paleoichthyology that occurred in 2020.
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New taxa
Jawless vertebrates
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Clavulaspis[1] | Nom. nov | Valid | Elliott, Lassiter & Geyer | Devonian (Givetian) | Yahatinda Formation | ![]() ( ![]() |
A member of the family Pteraspididae; a replacement name for Helaspis Elliott et al. (2000). | |
Ecphymaspis[1] | Gen. et comb. nov | Valid | Elliott, Lassiter & Geyer | Devonian (Eifelian) | Spring Mountain beds | ![]() ( ![]() |
A member of the family Pteraspididae; a new genus for "Psephaspis" idahoensis Denison (1968). | |
Parathelodus liaokuoensis[2] | Sp. nov | Valid | Cui et al. | Devonian (Lochkovian) | Xishancun |
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A thelodont belonging to the family Coelolepidae. Announced in 2019; the final version of the article naming it was published in 2020. | |
Parathelodus wangi[2] | Sp. nov | Valid | Cui et al. | Devonian (Lochkovian) | Xishancun |
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A thelodont belonging to the family Coelolepidae. Announced in 2019; the final version of the article naming it was published in 2020. | |
Parathelodus xitunensis[2] | Sp. nov | Valid | Cui et al. | Devonian (Lochkovian) | Xitun | ![]() |
A thelodont belonging to the family Coelolepidae. Announced in 2019; the final version of the article naming it was published in 2020. | |
Psarkosteus[3] | Gen. et sp. nov | In press | Dec | Devonian (Givetian) | Skały | ![]() |
A member of the family Psammosteidae. The type species is P. mediocris. | |
Rumporostralis[4] | Gen. et comb. et sp. nov | Valid | Shan et al. | Silurian (Telychian) | Xikeng Formation | ![]() |
A member of Galeaspida belonging to the group Eugaleaspiformes and the family Sinogaleaspidae. The type species is "Sinogaleaspis" xikengensis Pan & Wang (1980); genus also includes new species R. shipanensis. | |
Scutellaspis[1] | Gen. et sp. nov | Valid | Elliott, Lassiter & Geyer | Devonian (Eifelian) | Spring Mountain beds | ![]() ( ![]() |
A member of the family Pteraspididae. Genus includes new species S. wilsoni. | |
Placoderms
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Actinolepis zaikai[5] | Sp. nov | Valid | Plax & Newman | Devonian (Emsian) | Lepel Beds | ![]() |
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Bulongosteus[6] | Gen. et sp. nov | Valid | Liu, Zong & Gong | Late Devonian | Zhulumute Formation | ![]() |
A member of the family Selenosteidae. Genus includes new species B. liui. | |
Johannaspis[7] | Gen. et comb. nov | In press | Vaškaninová | Early Devonian | Prague Basin | ![]() |
A homostiid arthrodire. Genus includes "Asterolepis" bohemicus Barrande (1872). | |
Stipatosteus[5] | Gen. et sp. nov | Valid | Plax & Newman | Devonian (Emsian) | Lepel Beds | ![]() |
A phlyctaeniid arthrodire. Genus includes new species S. svidunovitchi. | |
Cartilaginous fishes
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Amamriabatis[8] | Gen. et sp. nov | Valid | Adnet et al. | Eocene | ![]() ![]() |
A ray belonging to the family Mobulidae. The type species is A. heni. | ||
Atlantitrygon[9] | Gen. et comb. et sp. nov | Valid | Sambou et al. | Paleocene (Thanetian) and Eocene (Lutetian) | Matam | A putative marine potamotrygonid. The type species is "Dasyatis" sudrei Cappetta (1972); genus also includes new species A. senegalensis. | ||
Carcharhinus kasserinensis[8] | Sp. nov | Valid | Adnet et al. | Eocene (Bartonian) | ![]() ![]() |
A species of Carcharhinus. | ||
Coupatezia cristata[8] | Sp. nov | Valid | Adnet et al. | Eocene | ![]() ![]() |
A ray belonging to the superfamily Dasyatoidea. | ||
Cretasquatina[10] | Gen. et sp. nov | Valid | Maisey, Ehret & Denton | Late Cretaceous (Campanian) | Mooreville Chalk Navesink Formation? |
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A member of the family Squatinidae. The type species is C. americana. | |
Eoplatyrhina[11] | Gen. et comb. nov | Valid | Marramà et al. | Eocene | Monte Bolca | ![]() |
A member of the family Platyrhinidae. Genus includes "Platyrhina" bolcensis Heckel (1851). | |
Himantura souarfortuna[8] | Sp. nov | Valid | Adnet et al. | Eocene (Bartonian) | ![]() |
A whiptail stingray, a species of Himantura. | ||
Lamarodus[12] | Gen. et sp. nov | Valid | Ivanov in Ivanov et al. | Permian (Guadalupian) | Bell Canyon Formation | ![]() ( ![]() |
A member of Hybodontiformes belonging to the superfamily Hybodontoidea. Genus includes new species L. triangulus. Announced in 2018; the final version of the article naming it was published in 2020. | |
Leptocharias tunisiensis[8] | Sp. nov | Valid | Adnet et al. | Eocene | ![]() ![]() ![]() |
A relative of the barbeled houndshark. | ||
Mecotrygon[8] | Gen. et sp. nov | Valid | Adnet et al. | Eocene | ![]() ![]() |
A whiptail stingray belonging to the subfamily Neotrygoninae. The type species is M. asperodentulus. | ||
Mennerotodus mackayi[13] | Sp. nov | Valid | Cicimurri, Ebersole & Martin | Paleocene (Danian) | Clayton | ![]() ( ![]() |
A sand shark | |
Mennerotodus parmleyi[13] | Sp. nov | Valid | Cicimurri, Ebersole & Martin | Eocene (Bartonian) | Clinchfield | ![]() ( ![]() |
A sand shark | |
Microtriftis[9] | Gen. et sp. nov | Valid | Sambou et al. | Eocene (Ypresian to Lutetian) | Matam | ![]() |
A dasyatoid of uncertain phylogenetic placement. Genus includes new species M. matami. | |
Odontorhytis priemi[9] |
Sp. nov | Valid | Sambou et al. | Paleocene (Thanetian) and Eocene (Ypresian) | Matam | A member of Neoselachii of uncertain phylogenetic placement | ||
Ouledia lacuna[8] | Sp. nov | Valid | Adnet et al. | Eocene (Bartonian) | ![]() |
A butterfly ray. | ||
Pachygymnura[8] | Gen. et comb. nov | Valid | Adnet et al. | Eocene | ![]() ![]() |
A butterfly ray. The type species is "Coupatezia" attiai Cook in Murray et al. (2010). | ||
Plesiozanobatus[11] | Gen. et comb. nov | Valid | Marramà et al. | Eocene]] | Monte Bolca | ![]() |
A relative of panray. Genus includes "Torpedo" egertoni De Zigno (1876). | |
Sculptospina[14] |
Gen. et sp. nov |
In press |
Lebedev in Lebedev, Ivanov & Linkevich |
A member of Ctenacanthiformes of uncertain phylogenetic placement. The type species is S. makhlaevi. |
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Sphyrna guinoti[8] | Sp. nov | Valid | Adnet et al. | Eocene | ![]() ![]() |
A species of Sphyrna. | ||
Stegostoma tethysiensis[8] | Sp. nov | Valid | Adnet et al. | Eocene | ![]() ![]() |
A relative of the zebra shark. | ||
Taklamakanolepis[15] | Gen. et sp. nov | Andreev et al. | Early Silurian | Ymogantau | ![]() |
A member of Mongolepidida. The type species is T. asiaticus. | ||
Tielikewatielepis[15] | Gen. et sp. nov | Andreev et al. | Early Silurian | Tataertag Ymogantau |
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A member of Mongolepidida. The type species is T. sinensis. | ||
Xiaohaizilepis[15] | Gen. et sp. nov | Andreev et al. | Early Silurian | Tataertag Ymogantau |
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A member of Mongolepidida. The type species is X. liui. | ||
Yuanolepis[15] | Gen. et sp. nov | Andreev et al. | Early Silurian | Ymogantau | ![]() |
A cartilaginous fish of uncertain phylogenetic placement. The type species is Y. bachunensis. | ||
Ray-finned fishes
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Agassizilia[16] | Gen. et sp. nov | In press | Cooper & Martill | Cenomanian | Kem Kem | ![]() |
Possibly a member of the family Pycnodontidae. The type species is A. erfoudina. | |
Altmuehlfuro[17] | Gen. et sp. nov | Valid | Ebert | Late Jurassic | Solnhofen | ![]() |
A member of Halecomorphi belonging to the group Ophiopsiformes. Genus includes new species A. boomerang. | |
Amakusaichthys[18] | Gen. et sp. nov | Valid | Yabumoto, Hirose & Brito | Late Cretaceous (Santonian) | Hinoshima | ![]() |
A member of Ichthyodectiformes. Genus includes new species A. goshouraensis. Announced in 2018; the final version of the article naming it was published in 2020. | |
Ampheristus americanus[19] | Sp. nov | Valid | Schwarzhans & Stringer | Late Cretaceous (Maastrichtian) and Paleocene (Danian) | Clayton Kemp Clay |
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A cusk-eel. | |
Anguilla? chickasawae[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) and Paleocene (Danian)[19] | Clayton[19] Ripley |
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A member or a relative of the family Anguillidae | |
Apateodus crenellatus[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Owl Creek |
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Ariopsis castilloensi[21] | Sp. nov | In press | Aguilera & Rodriguez in Aguilera et al. | Late Oligocene to early Miocene | Castillo | ![]() |
A species of Ariopsis. | |
Bagre ornatus[21] | Sp. nov | In press | Aguilera & Rodriguez in Aguilera et al. | Late Oligocene to early Miocene | Castillo | ![]() |
A species of Bagre. | |
Boreolates[22] | Gen. et sp. nov | Valid | Weems | Eocene | Nanjemoy | ![]() ( ![]() |
A member of the family Latidae. The type species is B. debernardi. | |
Brachyplatystoma elbakyani[23] | Sp. nov | In press | Agnolin & Bogan | Late Miocene | ![]() |
A species of Brachyplatystoma | ||
Burguklia minichorum[24] | Sp. nov | Valid | Bakaev & Kogan | Permian (Wordian–Capitanian) | ![]() |
An early ray-finned fish. Announced in 2019; the final version of the article naming it was published in 2020. | ||
Caucombrus[25] | Gen. et sp. nov | Valid | Bannikov | Early Oligocene | Abkhazia![]() |
A member of the family Scombridae. Genus includes new species C. histiopterygius. | ||
Chaychanus[26] | Gen. et sp. nov | Valid | Cantalice Severiano, Alvarado Ortega & Bellwood | Paleocene | ![]() |
A member of the family Pomacentridae. Genus includes new species C. gonzalezorum. Announced in 2019; the final version of the article naming it was published in 2020. | ||
Choctawichthys[20] | Gen. et comb. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
A member of Paracanthopterygii of uncertain phylogenetic placement. The type species is "genus Perciformorum" cepoloides Nolf & Dockery (1990). | |
Clupea hanishinaensis[27] | Nom. nov | Valid | Yabumoto & Nazarkin | Miocene | Bessho | ![]() |
A species of Clupea; a replacement name for Clupea macrocephala Yabumoto & Nazarkin (2018). | |
Congrophichthus[19] | Gen. et sp. nov | Valid | Schwarzhans & Stringer | Late Cretaceous (late Campanian and Maastrichtian) and Paleocene (Danian) | Clayton Coffee Sand Kemp Clay |
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A member of the family Congridae. The type species is C. transterminus. | |
Cowetaichthys carnevalei[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
A beardfish | |
Dakotaichthys[19] | Gen. et sp. nov | Valid | Schwarzhans & Stringer | Late Cretaceous (Maastrichtian) | Fox Hills Kemp Clay |
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Possibly a member of the family Gadidae. The type species is D. hogansoni. | |
Ellimma longipectoralis[28] | Sp. nov | Valid | Polck et al. | Early Cretaceous (Aptian) | Barra Velha Formation | ![]() |
A member of Clupeomorpha belonging to the group Ellimmichthyiformes and to the family Paraclupeidae. Announced in 2019; the final version of the article naming it was published in 2020. | |
Elongofuro[17] | Gen. et sp. nov | Valid | Ebert | Late Jurassic | ![]() |
A member of Halecomorphi belonging to the group Ophiopsiformes. Genus includes new species E. woelflei. | ||
Elopothrissus carsonsloani[19] | Sp. nov | Valid | Schwarzhans & Stringer | Paleocene (Danian) | Clayton | ![]() ( ![]() |
A relative of the Japanese gissu. | |
Epaelops[29] | Gen. et sp. nov | In press | Alves, Alvarado Ortega & Brito | Early Cretaceous (Albian) | Tlayúa | ![]() |
A member of Elopiformes. Genus includes new species E. martinezi. Announced in 2019; the final version of the article naming it is scheduled to be published in 2020. | |
Eutawichthys choctawae[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Kemp Clay[19] Ripley |
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Probably a member of Beryciformes | |
Gregoriopycnodus[30] | Gen. et comb. nov | Valid | Taverne, Capasso & Del Re | Early Cretaceous (Albian) | ![]() |
A member of the family Pycnodontidae. The type species is "Palaeobalistum" bassanii d'Erasmo (1914). | ||
Hadromos[31] | Gen. et sp. nov | Valid | Murray | Early Cenozoic (possibly Eocene) | Sangkarewang | ![]() |
A member of Cyprinoidea. Genus includes new species H. sandersae. | |
Heckelichthys preopercularis[32] | Sp. nov | In press | Baños Rodríguez et al. | Cretaceous (Albian–Cenomanian) | El Doctor | ![]() |
A member of Ichthyodectiformes | |
Hiascoactinus[33] | Gen. et sp. nov | In press | Kim et al. | Late Triassic | Amisan | ![]() |
A member of Redfieldiiformes. Genus includes new species H. boryeongensis. Announced in 2019; the final version of the article naming it is scheduled to be published in 2020. | |
Holzmadenfuro[34] | Gen. et sp. nov | Valid | Ebert, Thies & Hauff | Early Jurassic (Toarcian) | Posidonia | ![]() |
A member of Halecomorphi. Genus includes new species H. rebmanni. | |
Hoplopteryx langfordi[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
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Kokenichthys navis[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Owl Creek |
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A member of Osteoglossiformes of uncertain phylogenetic placement | |
Kradimus[35] | Gen. et sp. nov | Valid | Veysey, Brito & Martill | Late Cretaceous (Turonian) | Akrabou Formation | ![]() |
A member of Crossognathiformes. Genus includes new species K. asflaensis. Announced in 2019; the final version of the article naming it was published in 2020. | |
Lebrunichthys[36] | Gen. et sp. nov | Valid | Taverne & Capasso | Late Cretaceous (Cenomanian) | ![]() |
A member of Crossognathiformes belonging to the family Pachyrhizodontidae. The type species is L. nammourensis. | ||
Louwoichthys[37] | Gen. et sp. nov | Valid | Xu | Middle Triassic (Anisian) | ![]() |
A member of the stem group of Neopterygii. Genus includes new species L. pusillus. | ||
Luganoia fortuna[38] | Sp. nov | In press | Xu | Middle Triassic (Ladinian) | Falang | ![]() |
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Megalops? nolfi[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
Probably member of the family Megalopidae | |
Monosmilus[39] | Gen. et sp. nov | Capobianco et al. | Eocene (Lutetian) | Domanda | ![]() |
A stem-engraulid. The type species is M. chureloides. | ||
Muraenanguilla unionensis[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Owl Creek |
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An eel of uncertain phylogenetic placement | |
Neoproscinetes africanus[16] | Sp. nov | In press | Cooper & Martill | Cenomanian | Kem Kem | ![]() |
A member of the family Pycnodontidae | |
Njoerdichthys[40] | Gen. et sp. nov | In press | Cawley et al. | Late Cretaceous (Turonian) | Hesseltal | ![]() |
A member of the family Pycnodontidae. The type species is N. dyckerhoffi. | |
Ohmdenfuro[34] | Gen. et sp. nov | Valid | Ebert, Thies & Hauff | Early Jurassic (Toarcian) | Posidonia | ![]() |
A member of Halecomorphi. Genus includes new species O. bodmani. | |
Osmeroides mississippiensis[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Owl Creek |
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Ossulcus[20] | Gen. et sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
Probably a member of Beryciformes. The type species is O. labiatus. | |
Otolithopsis cumatilis[20] | Sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
An otolith of a fish of uncertain phylogenetic placement. | |
Palaeogadus weltoni[19] | Sp. nov | Valid | Schwarzhans & Stringer | Late Cretaceous (Maastrichtian) | Kemp Clay | ![]() ( ![]() |
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Palealbula korchinskyi[41] | Sp. nov | Valid | Schwarzhans & Mironenko | Late Jurassic | ![]() |
Possibly a stem-albuliform | ||
Palealbula moscoviensis[41] | Sp. nov | Valid | Schwarzhans & Mironenko | Late Jurassic | ![]() |
Possibly a stem-albuliform. | ||
Pauciuncus[31] | Gen. et comb. nov | Valid | Murray | Early Cenozoic (possibly Eocene) | Sangkarewang | ![]() |
A member of Cyprinoidea. Genus includes "Puntius" bussyi. | |
Polcynichthys[42] | Gen. et sp. nov | In press | London & Shimada | Late Cretaceous (Cenomanian) | Tarrant | ![]() ( ![]() |
A member of the family Pachyrhizodontidae. Genus includes new species P. lloydhilli. | |
Pythonichthys arkansasensis[19] | Sp. nov | Valid | Schwarzhans & Stringer | Late Cretaceous (Maastrichtian) and Paleocene (Danian) | Clayton Kemp Clay |
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A species of Pythonichthys. | |
Rhynchoconger brettwoodwardi[19] | Sp. nov | Valid | Schwarzhans & Stringer | Late Cretaceous (Maastrichtian) | Kemp Clay | ![]() ( ![]() |
A species of Rhynchoconger. | |
Salwaichthys[43] | Gen. et sp. nov | Valid | Bannikov | Early Oligocene | Abkhazia![]() ![]() ( ![]() |
A member of Perciformes belonging to the new family Salwaichthyidae. Genus includes new species S. paratethyensis. | ||
Sanctusichthys[44] | Gen. et sp. nov | Valid | López-Arbarello, Maxwell & Schweigert | Late Jurassic (Kimmeridgian) | Nusplingen Limestone | ![]() |
A member of Halecomorphi. Genus includes new species S. rieteri. | |
Sangkarewangia[31] | Gen. et sp. nov | Valid | Murray | Early Cenozoic (possibly Eocene) | Sangkarewang | ![]() |
A member of Cyprinoidea. Genus includes new species S. sumatranus. | |
Scleropages sanshuiensis[45] | Sp. nov | Valid | Zhang | Early Eocene | Huachong | ![]() |
A species of Scleropages. Announced in 2019; the final version of the article naming it was published in 2020. | |
Scombroclupea javieri[46] | Sp. nov | In press | Than Marchese et al. | Late Cretaceous (Cenomanian) | Cintalapa | ![]() |
A member of Clupeomorpha of uncertain phylogenetic placement | |
Siniperca ikikoku[47] | Sp. nov | Valid | Yabumoto | Miocene | ![]() |
A species of Siniperca. | ||
Stanhopeichthys[48] | Gen. et sp. nov | Valid | Taverne & Capasso | Late Cretaceous (Cenomanian) | ![]() |
A member of Crossognathiformes belonging to the family Pachyrhizodontidae. The type species is S. libanicus. | ||
Thrax[20] | Gen. et sp. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Ripley | ![]() ( ![]() |
A member of Aulopiformes belonging to the family Ichthyotringidae. The type species is T. acutus. | |
Tippaha[20] | Gen. et sp. et comb. nov | Valid | Schwarzhans & Stringer in Stringer et al. | Late Cretaceous (Maastrichtian) | Owl Creek |
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A member of Holocentriformes of uncertain phylogenetic placement. The type species is T. mythica; genus also includes "genus Ophidiidarum" cavatus Nolf & Stringer (1996). | |
Vachalia[49] | Gen. et sp. nov | Valid | Přikryl & Carnevale | Early Oligocene | ![]() |
A member of the family Platytroctidae. Genus includes new species V. moraviensis. | ||
Vegrandichthys[50] | Gen. et sp. nov | Valid | Díaz-Cruz, Alvarado-Ortega & Giles | Late Cretaceous (Cenomanian) | Cintalapa | ![]() |
A member of Aulopiformes belonging to the family Enchodontidae. The type species is V. coitecus. | |
Warilochromis[51] |
Gen. et sp. nov |
Valid |
Altner, Ruthensteiner & Reichenbacher |
Late Miocene |
Ngorora |
A cichlid belonging to the subfamily Pseudocrenilabrinae. The type species is W. unicuspidatus. |
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Lobe-finned fishes
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Ptychoceratodus oldhami[52] | Sp. nov | Valid | Bhat & Ray | Late Triassic (Carnian) | Tiki | ![]() |
A lungfish. Announced in 2018; the final version of the article naming it was published in 2020. | |
Research
- A study on the morphology of the osteostracans, evaluating different methods used to determine the morphological variation within this group and its evolution, is published by Ferrón et al. (2020).[53]
- A study on the fossil dentitions of acanthothoracids is published by Vaškaninová et al. (2020), who report that the teeth of acanthothoracids differed fundamentally from those of arthrodires, and argue that the characteristic traits of acanthothoracid dentition might be ancestral for all jawed vertebrates.[54]
- A study aiming to determine whether Titanichthys was a suspension feeder, focusing on mechanical properties of its jaw, is published by Coatham et al. (2020).[55]
- Burrow, Newman & den Blaauwen (2020) describe external spiracular elements in Middle Devonian acanthodians from northern Scotland, differing from spiracles of all known extant and extinct fishes, and report the oldest record of elastic cartilage in the fossil record.[56]
- A study examining the factors influencing the long-term variations of genus-level diversity of elasmobranchs and ray-finned fishes throughout their evolutionary history is published by Guinot & Cavin (2020).[57]
- Carrillo-Briceño et al. (2020) describe a new elasmobranch assemblage from the Oligocene–Miocene boundary in the Dos Bocas Formation (Ecuador), and evaluate the implications of this assemblage for chronostratigraphic inferences and the knowledge of local paleoenvironment.[58]
- Two large vertebrae of sharks belonging to the genus Ptychodus, providing new information on the life history and body size of members of the family Ptychodontidae, are described from the Santonian of Spain by Jambura & Kriwet (2020).[59]
- A study on the fossil record of the great white shark from the Pliocene of Peru and Chile is published by Villafaña et al. (2020), who interpret their findings as indicating that great white sharks used the Coquimbo locality in Chile as a nursery and Pisco (Peru) and Caldera (Chile) localities as feeding grounds during the Pliocene.[60]
- Redescription of the anatomy of Tanyrhinichthys mcallisteri is published by Stack et al. (2020).[61]
- Fragmentary fossil material of Gyrosteus mirabilis is reported from the Toarcian of the Ahrensburg erratics assemblage (Schleswig-Holstein, Germany) by Hornung & Sachs (2020), expanding known geographic range of this species, and representing the first record of a chondrosteid species beyond its type area.[62]
- Revision and a study on the phylogenetic relationships of members of the subfamily Pycnodontinae is published by Poyato-Ariza (2020).[63]
- A study on the degree of preservation of the skin of an aspidorhynchid specimen from the Barremian Paja Formation (Colombia), representing the first instance of soft tissue preservation in vertebrates from the Early Cretaceous of northern South America, is published by Alfonso-Rojas & Cadena (2020).[64]
- Fossil material of Xiphactinus is described from the latest Maastrichtian Salamanca Formation (Chubut Province, Argentina) by De Pasqua, Agnolin & Bogan (2020), representing the first record of this genus from southern part of South America.[65]
- A methodology for assessing locomotion energetics in extinct bony fishes is presented by Ferrón (2020), who interprets his findings as providing evidence of endothermy in Xiphactinus audax.[66]
- New fossil material of Axelrodichthys megadromos is described from several Campanian and Maastrichtian sites in southern France by Cavin et al. (2020), who present a reconstruction of the skull of this species, and study its phylogenetic relationships and ecology.[67]
- Redescription of the anatomy of the skull of Durialepis edentatus is published by Mondéjar‐Fernández, Friedman & Giles (2020).[68]
- Description of new material of tristichopterids from the Devonian (Famennian) locality of Strud (Belgium), and a study on the phylogenetic relationships of tristichopterids, is published by Olive et al. (2020).[69]
- Description of a new, 1.57-metre-long articulated specimen of Elpistostege watsoni from the Upper Devonian of Canada, and a study on the implications of this specimen for the knowledge of the early evolution of the vertebrate hand, is published by Cloutier et al. (2020).[70]
- A study aiming to determine the impact of changes in the Earth system during the Eocene–Oligocene transition on pelagic fish production and biodiversity is published by Sibert et al. (2020).[71]
gollark: Well, in real life it would actually be a pleasant transparent cyanish.
gollark: If you don't that's your problem.
gollark: Anyway, potatOS is very deterministic so really you can know.
gollark: 3d6: omnidisks are ALL colours.
gollark: They're helpful, not malicious.
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- Melanie Altner; Bernhard Ruthensteiner; Bettina Reichenbacher (2020). "New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya". BMC Evolutionary Biology. 20: Article number 65. doi:10.1186/s12862-020-01602-x. PMC 7275555. PMID 32503417.
- Mohd Shafi Bhat; Sanghamitra Ray (2020). "A record of new lungfishes (Osteichthyes: Dipnoi) from the Carnian (Upper Triassic) of India". Historical Biology: An International Journal of Paleobiology. 32 (3): 428–437. doi:10.1080/08912963.2018.1499020.
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- Jack Stack; John-Paul Hodnett; Spencer G. Lucas; Lauren Sallan (2020). "Tanyrhinichthys mcallisteri, a long-rostrumed Pennsylvanian ray-finned fish (Actinopterygii) and the simultaneous appearance of novel ecomorphologies in Late Palaeozoic fishes". Zoological Journal of the Linnean Society. in press. doi:10.1093/zoolinnean/zlaa044.
- Jahn J. Hornung; Sven Sachs (2020). "First record of Gyrosteus mirabilis (Actinopterygii, Chondrosteidae) from the Toarcian (Lower Jurassic) of the Baltic region". PeerJ. 8: e8400. doi:10.7717/peerj.8400. PMC 6982408. PMID 32002331.
- Francisco José Poyato-Ariza (2020). "Studies on pycnodont fishes (II): revision of the subfamily Pycnodontinae, with special reference to Italian forms". Rivista Italiana di Paleontologia e Stratigrafia. 126 (2): 447–473. doi:10.13130/2039-4942/13514.
- Andrés Alfonso-Rojas; Edwin-Alberto Cadena (2020). "Exceptionally preserved 'skin' in an Early Cretaceous fish from Colombia". PeerJ. 8: e9479. doi:10.7717/peerj.9479. PMC 7353916. PMID 32714661.
- Julieta J. De Pasqua; Federico L. Agnolin; Sergio Bogan (2020). "First record of the ichthyodectiform fish Xiphactinus (Teleostei) from Patagonia, Argentina". Alcheringa: An Australasian Journal of Palaeontology. in press: 1–5. doi:10.1080/03115518.2019.1702221.
- Humberto G. Ferrón (2020). "Evidence of endothermy in the extinct macropredatory osteichthyan Xiphactinus audax (Teleostei, Ichthyodectiformes)". Journal of Vertebrate Paleontology. 39 (6): e1724123. doi:10.1080/02724634.2019.1724123.
- Lionel Cavin; Eric Buffetaut; Yves Dutour; Géraldine Garcia; Jean Le Loeuff; Annie Méchin; Patrick Méchin; Haiyan Tong; Thierry Tortosa; Eric Turini; Xavier Valentin (2020). "The last known freshwater coelacanths: New Late Cretaceous mawsoniid remains (Osteichthyes: Actinistia) from Southern France". PLOS ONE. 15 (6): e0234183. doi:10.1371/journal.pone.0234183. PMC 7274394. PMID 32502171.
- Jorge Mondéjar‐Fernández; Matt Friedman; Sam Giles (2020). "Redescription of the cranial skeleton of the Early Devonian (Emsian) sarcopterygian Durialepis edentatus Otto (Dipnomorpha, Porolepiformes)". Papers in Palaeontology. in press. doi:10.1002/spp2.1315.
- Sébastien Olive; Yann Leroy; Edward B. Daeschler; Jason P. Downs; Sandrine Ladevèze; Gaël Clément (2020). "Tristichopterids (Sarcopterygii, Tetrapodomorpha) from the Upper Devonian tetrapod-bearing locality of Strud (Belgium, upper Famennian), with phylogenetic and paleobiogeographic considerations". Journal of Vertebrate Paleontology: e1768105. doi:10.1080/02724634.2020.1768105.
- Richard Cloutier; Alice M. Clement; Michael S. Y. Lee; Roxanne Noël; Isabelle Béchard; Vincent Roy; John A. Long (2020). "Elpistostege and the origin of the vertebrate hand". Nature. 579 (7800): 549–554. doi:10.1038/s41586-020-2100-8. PMID 32214248.
- Elizabeth C. Sibert; Michelle E. Zill; Ella T. Frigyik; Richard D. Norris (2020). "No state change in pelagic fish production and biodiversity during the Eocene–Oligocene transition". Nature Geoscience. 13 (3): 238–242. doi:10.1038/s41561-020-0540-2.
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