2023 in paleoichthyology

Source: Wikipedia, the free encyclopedia.
List of years in paleoichthyology
In paleontology
2020
2021
2022
2023
2024
2025
2026
In paleobotany
2020
2021
2022
2023
2024
2025
2026
In arthropod paleontology
2020
2021
2022
2023
2024
2025
2026
In paleoentomology
2020
2021
2022
2023
2024
2025
2026
In paleomalacology
2020
2021
2022
2023
2024
2025
2026
In reptile paleontology
2020
2021
2022
2023
2024
2025
2026
In archosaur paleontology
2020
2021
2022
2023
2024
2025
2026
In mammal paleontology
2020
2021
2022
2023
2024
2025
2026

This list of

paleoichthyology
that occurred in 2023.

Jawless vertebrates

Name Novelty Status Authors Age Type locality Location Notes Images

Amaltheolepis terranovi[1]

Sp. nov

Valid

Blom et al.

Devonian (Emsian)

Shevchenkinskaya Formation

 Russia
( Arkhangelsk Oblast)

A member of Thelodonti belonging to the group Thelodontiformes and the family Turiniidae.

Caeruleum[2]

Gen. et sp. nov

Huang

Early Cretaceous

 China

A lamprey. The type species is C. miraculum.

Dayongaspis colubra[3]

Sp. nov

Valid

Zhang et al.

Silurian (Telychian)

Xiushan Formation

 China

A member of Galeaspida belonging to the family Dayongaspidae.

Foxaspis[4]

Gen. et sp. nov

Gai et al.

Devonian (Pragian)

Xiaoshan Formation

 China
(Guangxi)

A member of Galeaspida belonging to the group Polybranchiaspidiformes and the family Duyunolepididae. The type species is F. novemura.

Jiangxialepis rongi[5]

Sp. nov

Liu et al.

Silurian (Telychian)

Tataertag Formation

 China

A member of Galeaspida belonging to the family Shuyuidae.

Squirmarius[6]

Gen. et sp. nov

Valid

McCoy et al.

Carboniferous (Pennsylvanian)

Mazon Creek fossil beds

 United States
( Illinois)

A member of Cyclostomi. The type species is S. testai.

Xiyuichthys[7]

Nom. et sp. nov

Shan et al.

Silurian

Tataertag Formation

 China

A member of Galeaspida belonging to the family Xiushuiaspidae; a replacement name for Xiyuaspis Liu et al. (2019). Shan et al. (2023) also named a new species X. lixiensis from the Telychian Qingshui Formation (Jiangxi, China).

Yanliaomyzon[8]

Gen. 2 sp. nov

Wu, Janvier & Zhang

Jurassic (Callovian and Oxfordian)

Tiaojishan Formation

 China

A lamprey. The type species is Y. occisor; genus also includes Y. ingensdentes.

Jawless vertebrate research

  • A study on the anatomy and affinities of Lasanius is published by Reeves et al. (2023), who interpret this vertebrate as a stem-cyclostome.[9]
  • Dearden et al. (2023) describe the cranial anatomy of Eriptychius americanus, provide evidence of the presence of a symmetrical set of cartilages interpreted as the preorbital neurocranium, and report that the studied cartilages filled out the head and closely supported the dermal skeleton (in that they were closer to the cranial anatomy of osteostracans and galeaspids than cyclostomes), but were not fused into a single unit around the brain (more closely resembling the cranial anatomy of cyclostomes than osteostracans, galeaspids and jawed vertebrates in that aspect).[10]
  • A study on the interaction of fluid flow with 2D models of heterostracan oral plate denticles is published by Grohganz et al. (2023), who interpret their findings as indicating that the studied denticles were not an adaptation to suspension feeding.[11]

Placoderms

Name Novelty Status Authors Age Type locality Location Notes Images

Bothriolepis dairbhrensis[12]

Sp. nov

Valid

Dupret et al.

Devonian (Givetian)

Valentia Slate Formation

 Ireland

Chahuaqingolepis[13]

Gen. et sp. nov

Valid

Liu et al.

Devonian

Tanglishu Formation

 China

A member of the family Bothriolepididae. The type species is C. magniporus.

Dunkleosteus tuderensis[14]

Sp. nov

Lebedev in Lebedev et al.

Devonian (Famennian)

Bilovo Formation

 Russia
( Tver Oblast)

Sherbonaspis talimaae[15]

Sp. nov

Valid

Plax & Lukševičs

Devonian (probably Emsian)

Lepel Beds

 Belarus

A member of Asterolepidoidei belonging to the family Pterichthyodidae.

Valentinaspis[16]

Gen. et sp. nov

Valid

Plax & Newman

Devonian (Emsian)

 Belarus
 Estonia

A member of the family

Arctolepididae
. The type species is V. profundus.

Placoderm research

  • Evidence from the study of the skull of Kolymaspis sibirica, interpreted as indicating that the sixth branchial arch was probably the one that was incorporated into the vertebrate shoulder girdle, is presented by Brazeau et al. (2023).[17]
  • Brazeau et al. (2023) describe a near-complete "acanthothoracid" upper jaw from the Devonian (Pragian) Yamaat Gol locality (Mongolia), and interpret this finding as indicating that the morphology and function of "acanthoracid" jaws resemble generalized "placoderm" conditions seen also in arthrodires and rhenanids.[18]
  • Redescription and a study on the affinities of Bothriolepis sinensis is published by Luo et al. (2023).[19]
  • Evidence of different patterns of phylogenetic and taxic diversity of Arthrodira throughout their evolutionary history is presented by Xue et al. (2023), who find evidence robust correlation between declines of phylogenetic diversity and significant global events during the Devonian, especially the late Givetian event, the Late Devonian extinction and the Hangenberg event.[20]
  • Engelman (2023) attempts to determine body size of Dunkleosteus terrelli, recovering the body lengths of between 3.1 and 3.5 m for typical adults and ~4.1 m for the largest individuals;[21] in a subsequent study the author reevaluates the methodology and length estimates used by Ferrón, Martinez-Perez & Botella (2017),[22] and argues that length estimates for Dunkleosteus based on the mouth dimensions of extant sharks are not reliable, as arthrodires have proportionally larger mouths than sharks.[23]
  • Cui et al. (2023) describe a near-complete post-thoracic exoskeleton of Entelognathus primordialis from the Silurian Kuanti Formation (China), reporting the presence of an anal fin spine in the studied specimen, previously known only in stem cartilaginous fishes, as well as striking similarities of the scales and squamation of the studied specimen to those of bony fishes, including the presence of rhomboid scales with the peg-and-socket articulation previously considered a synapomorphy of bony fishes.[24]

Acanthodians

Name Novelty Status Authors Age Type locality Location Notes Images

Funicristata[25]

Gen. et sp. nov

Valid

Burrow in Burrow, Murphy & Turner

Silurian (Přidolí)

Roberts Mountains Formation

 United States
( Nevada)

An acanthodian of uncertain affinities. The type species is F. nevadaensis.

Orcadacanthus[26]

Gen. et comb. nov

Valid

Newman et al.

Devonian

Orcadian Basin

 United Kingdom

A member of Acanthodiformes belonging to the family Mesacanthidae. The type species is "Acanthodes" pusillus Agassiz (1844).

Acanthodian research

Cartilaginous fishes

Name Novelty Status Authors Age Type locality Location Notes Images

Atlantobatis[28]

Gen. et sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch. The type species is A. acrodonta.

Cavusodus[29]

Gen. et sp. nov

Valid

Itano

Carboniferous (late Viséan–early Serpukhovian)

 United States
( Alabama)

A member of Petalodontiformes belonging to the family Janassidae. The type species is C. whitei.

Corysodon multicristatus[30]

Sp. nov

Valid

Batchelor & Duffin

Early Cretaceous (Aptian)

Atherfield Clay Formation

 United Kingdom

A neoselachian shark.

Possibly a Carcharhiniforme.

Coupatezia casei[28]

Sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch.

Crioselache[31]

Gen. et sp. nov

Valid

Pauliv et al.

Permian (Asselian)

Campo Mourão Formation

 Brazil

Possibly a member of the family Symmoriidae. The type species is C. wittigi.

‘Dasyatis’ reticulata[28]

Sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch.

Dasyomyliobatis[32]

Gen. et sp. nov

Valid

Marramà et al.

Eocene (Ypresian)

Monte Bolca Lagerstätte

 Italy

A member of

Dasyomyliobatidae
. The type species is D. thomyorkei.

Denaea patula[33]

Sp. nov

Ivanov in Ivanov, Alekseev & Nikolaeva

Carboniferous (Viséan)

 Russia

A member of Symmoriiformes.

Desinia[34]

Gen. et sp. nov

Valid

Ivanov in Ivanov et al.

Permian

 Russia
( Kirov Oblast
 Komi Republic
 Mari El
 Tatarstan)

A member of the family Sphenacanthidae. The type species is D. radiata. Published online in 2023, but the issue date is listed as December 2022.[34]

Fairchildodus[35]

Gen. et sp. nov

Chahud

Permian (Cisuralian)

Irati Formation

 Brazil

A member of Holocephali. The type species is F. rioclarensis.

Hemipristis tanakai[36]

Sp. nov

Tomita, Yabumoto & Kuga

Oligocene

Yamaga Formation

 Japan

A species of Hemipristis.

Karpinskiprion[37]

Gen. et comb. nov

Valid

Lebedev & Itano in Lebedev et al.

Carboniferous

 Russia
( Moscow Oblast
 Volgograd Oblast)

A member of the family Helicoprionidae. The type species is "Helicoprion" ivanovi Karpinsky (1924).

Lissodus tumidoclavus[38]

Sp. nov

Valid

Duffin, Heckert & Hancox

Early Triassic

Burgersdorp Formation

 South Africa

A member of

Hybodontoidea
.

Luopingselache[39]

Gen. et sp. nov

Wen et al.

Middle Triassic (Anisian)

 China

A member of the family Lonchidiidae. Genus includes new species L. striata.

Maghriboselache[40] Gen. et sp. nov Klug et al. Late Devonian  Morocco A member of the family Cladoselachidae. The type species is M. mohamezanei.

Phosphatodon cretaceus[28]

Sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch.

Physogaleus onkensis[41]

Sp. nov

Boulemia & Adnet

Paleogene

Kef Esnoun Formation

 Algeria

Ptychotrygon ameghinorum[42]

Sp. nov

Begat et al.

Late Cretaceous (Cenomanian)

Mata Amarilla Formation

 Argentina

Ptychotrygon nazeensis[28]

Sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch.

‘Rhinobatos’ popenguinensis[28]

Sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch.

Sowibatos[28]

Gen. et sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch. The type species is S. minimus.

Squatinactis multicuspidatus[33]

Sp. nov

Ivanov in Ivanov, Alekseev & Nikolaeva

Carboniferous (Viséan)

 Russia

Strigilodus[43]

Gen. et sp. nov

Valid

Hodnett et al.

Carboniferous (Viséan)

Ste. Genevieve Formation

 United States
( Kentucky)

A member of Petalodontiformes belonging to the family Janassidae. The type species is S. tollesonae.

Strophodus atlasensis[44]

Sp. nov

Valid

Stumpf et al.

Middle Jurassic (Bajocian)

Agoudim Formation

 Morocco

A member of

Hybodontidae and the subfamily Acrodontinae
.

Sulcacanthus[45]

Gen. et sp. nov

Valid

Itano & Duffin

Carboniferous (Viséan)

St. Louis Formation

 United States
( Indiana)

A

Squalorajoidei
. The type species is S. schachti.

Terangabatis[28]

Gen. et sp. nov

Guinot et al.

Late Cretaceous

 Senegal

A batomorph elasmobranch. The type species is T. thiami.

Cartilaginous fish research

  • Fossil material of members of the genera Pucapampella and Zamponiopteron is described from the Devonian (Eifelian) Chagrapi Formation by Zevallos-Valdivia et al. (2023), representing the first record of Paleozoic vertebrates from Peru reported to date.[46]
  • A study on the musculoskeletal anatomy of Iniopera is published by Dearden, Herrel & Pradel (2023), who interpret the anatomy of Iniopera as unsuited to durophagy, and consider it to be likely a high-performance suction-feeder.[47]
  • Fossil material of members of at least seven species belonging to the genus
    epicontinental seas of the Russian platform were important areas of diversification and spread of Ptychodus.[48]
  • Amadori et al. (2023) report the discovery of teeth of various species belonging to the genus Ptychodus from the Cenomanian and Turonian deposits of Ukraine, including teeth of cuspidate (P. altior) and un-cuspidate species (P. decurrens, P. latissimus, P. marginalis and P. polygyrus), and argue that the availability of diverse shelled invertebrates in epicontinental seas might have favored the diversification of Ptychodus.[49]
  • Ghosh et al. (2023) report the discovery of a new assemblage of lamniform shark teeth from the Aptian Habur Formation (India), including teeth of Dwardius and possibly of Eostriatolamia which may be some of the globally oldest record of these taxa.[50]
  • A study on the teeth of Megachasma applegatei is published by Krak & Shimada (2023), who find that the range of the morphometric variation of teeth of M. applegatei is larger than that of teeth of extant megamouth shark, with different tooth types corresponding to tooth types present in the smalltooth sand tiger.[51]
  • Shimada et al. (2023) describe tessellated calcified cartilage and placoid scale associated with a tooth set of Otodus megalodon from the Miocene strata in Japan, and interpret the morphology of the studied material as indicating that O. megalodon was generally a slow cruising shark.[52]
  • A study on the thermoregulation in Otodus megalodon is published by Griffiths et al. (2023), who argue that O. megalodon had an overall warmer body temperature compared with other coexisting shark species, and that its large body size coupled with high metabolic costs associated with having at least partial endothermy might have made it vulnerable to extinction.[53]
  • Collareta, Casati & Di Cencio (2023) describe new fossil material of Parotodus benedenii from the Valdelsa Basin (Italy), providing evidence of the survival of the species at least until the Late Pliocene, and interpret P. benedenii as a large-bodied carnivorous shark living in pelagic settings.[54]
  • Collareta et al. (2023) report the discovery of teeth of Alopias grandis from the Miocene deposits in southern Italy, possibly including the geologically youngest record of the species and extending its known geographic range.[55]
  • Villafaña et al. (2023) describe fossil material of the common thresher and the porbeagle from the Bahía Inglesa Formation (Caldera Basin, Chile), confirming the abundance of lamniform sharks in the Eastern Pacific of South America during the Neogene.[56]
  • Ehret et al. (2023) provisionally refer the species Cosmopolitodus planus/Isurus planus to the genus Carcharodon, and describe fossil material of C. planus and Carcharodon hubbelli from Miocene deposits in the South Island, representing the first records of both species from New Zealand reported to date.[57]
  • A study on the anatomy and affinities of
    Altmühltal Formation (Germany), is published by Jambura et al. (2023).[58]
  • Ferrón (2023) argues that, although representatives of most squalomorph groups colonized deep waters independently during the Late Jurassic and Early Cretaceous, bioluminescence evolved only once among sharks in a bathydemersal ancestor.[59]
  • A fossil egg case containing a well-preserved batoid (possibly stem-myliobatiform) embryo, with a unique combination of characters indicating that the embryo represents a previously unknown batoid form, is described from the Cenomanian Sannine limestone of Hjoula (Lebanon) by Capasso & Yamaguchi (2023).[60]
  • Reinecke et al. (2023) study the anatomy and affinities of whiptail stingray teeth from the Chattian of northern Germany and the Burdigalian of southern France, transferring the species Dasyatis probsti to the genus Bathytoshia.[61]
  • Pollerspöck et al. (2023) describe an assemblage of deep-sea shark fossils from the Eocene (Ypresian) Lillebælt Clay Formation (Denmark), showing highest similarities with deep-sea shark faunas of France, Austria and northern Morocco in spite of the North Sea Basin having lost direct connections to the neighbouring marine areas in the Eocene.[62]
  • Kovalchuk et al. (2023) revise the taxonomic composition of the cartilaginous fish assemblage from the Eocene (Lutetian-Bartonian) Kyiv Formation (Ukraine), interpreting the studied taxa as inhabiting shallow, warm waters and confined to the continental shelf.[63]
  • Verma (2023) describes new fossil material of elasmobranchs from the Eocene (Bartonian) Harudi Formation (India), providing evidence of replacement of earlier Eocene assemblages of elasmobranchs from western India by an assemblage dominated by members of the genera Brachycarcharias, Striatolamia, Galeocerdo and Carcharhinus, which might have been linked to the Middle Eocene Climatic Optimum.[64]
  • An assemblage of shark and ray teeth, interpreted as indicative of a warm, shallow water community, is described from the Lower Miocene deposits of the Upper Marine Molasse near Ballendorf (Germany) by Höltke et al. (2023).[65]
  • A study on changes of diversity of European chondrichthyans during the Neogene is published by Villafaña et al. (2023).[66]
  • A study on the impact of the Cretaceous–Paleogene extinction event on elasmobranchs is published by Guinot & Condamine (2023), who find rays and durophagous species to be more affected by the extinction than sharks and nondurophagous species, and find taxa with large geographic ranges or restricted to high-latitude settings to show higher survival.[67]

Ray-finned fishes

Name Novelty Status Authors Age Type locality Location Notes Images

Amblyeleotris robusta[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Amblyeleotris.

Amelangia[69]

Gen. et sp. nov

Valid

Štamberg & Werneburg

Permian (Asselian)

Lower Goldlauter Formation

 Germany

A member of the family Aeduellidae. The type species is A. ornata.

Archaeotolithus aptychoides[70]

Sp. nov

Pindakiewicz, Hryniewicz & Kaim

Early Cretaceous (Valanginian)

 Poland

Archaeus solus[71]

Sp. nov

Valid

Bannikov & Erebakan

Oligocene

 Russia
( Krasnodar Krai)

A member of the family Carangidae.

Armigatus plinii[72]

Sp. nov

Valid

Marramà & Carnevale

Early Cretaceous (Albian)

Pietraroja Plattenkalk

 Italy

A member of

Clupeomorpha belonging to the group Ellimmichthyiformes and the family Armigatidae
.

Arnoglossus kerichensis[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A scaldfish.

Arnoglossus scitulus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A scaldfish.

Aseraggodes azovensis[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Aseraggodes.

Benthosema duanformis[73]

Sp. nov

Lin in Lin et al.

Pliocene

Gutingkeng Formation

Taiwan

A species of Benthosema.

Benthosema parafibulatum[73]

Sp. nov

Lin in Lin et al.

Pliocene

Gutingkeng Formation

Taiwan

A species of Benthosema.

Boreiosturion[74]

Gen. et sp. nov

Murray, Nelson & Brinkman

Late Cretaceous (Campanian)

Horseshoe Canyon Formation

 Canada
( Alberta)

A sturgeon. The type species is B. labyrinthicus.

Bothus isselburgensis[75]

Sp. nov

Valid

Schwarzhans & von der Hocht

Miocene

A species of Bothus.

Bregmaceros danicus[76]

Sp. nov

Valid

Schwarzhans & Nielsen

Eocene

Lillebælt Clay Formation

 Denmark

A codlet.

Butyrumichthys[77]

Gen. et sp. nov

Schrøder et al.

Eocene

Fur Formation

 Denmark

A stromateoiform, possibly a medusafish. The type species is B. henricii.

Callionymus bessarabianus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Callionymus.

Callionymus kalinus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Callionymus.

Capros crudus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of

Capros
.

Caranx rharbensis[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Caranx.

Cataetyx alpersi[75]

Sp. nov

Valid

Schwarzhans & von der Hocht

Miocene

A species of Cataetyx.

Centroberyx vonderhochti[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Centroberyx.

Cepola lombartei[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Cepola.

Chelon jurkinensis[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Chelon.

Cladocynodon[79]

Gen. et sp. nov

Valid

De Mayrinck et al.

Early Cretaceous (Aptian)

Barbalha Formation

 Brazil

A member of the family

Cladocyclidae
. The type species is C. araripensis.

Congiopodus? inopinatus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

Possibly a species of Congiopodus.

Deltentosteus planus[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Deltentosteus.

Dercetis magnificus[80]

Sp. nov

Chida, Brinkman & Murray

Late Cretaceous (Campanian)

Bearpaw Formation

 Canada
( Alberta)

A member of the family Dercetidae.

Diandongichthys[81]

Gen. et sp. nov

Xu & Ma

Middle Triassic (Anisian)

Guanling Formation

 China

A basal member of Ginglymodi. The type species is D. ocellatus.

Diaphus? duplex[76]

Sp. nov

Valid

Schwarzhans & Nielsen

Eocene

Lillebælt Clay Formation

 Denmark

Possibly a species of Diaphus.

Diaphus maghrebensis[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Diaphus.

Dicologlossa postpatens[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Dicologlossa.

Galaxias crassus[82]

Sp. nov

Valid

Schwarzhans et al.

Early Miocene

Bannockburn Formation

 New Zealand

A species of Galaxias.

Galaxias naviculus[82]

Sp. nov

Valid

Schwarzhans et al.

Early Miocene

Bannockburn Formation

 New Zealand

A species of Galaxias.

Galaxias nitidus[82]

Sp. nov

Valid

Schwarzhans et al.

Early Miocene

Bannockburn Formation

 New Zealand

A species of Galaxias.

Galaxias polei[82]

Sp. nov

Valid

Schwarzhans et al.

Early Miocene

Bannockburn Formation

 New Zealand

A species of Galaxias.

Galaxias tholus[82]

Sp. nov

Valid

Schwarzhans et al.

Early Miocene

Bannockburn Formation

 New Zealand

A species of Galaxias.

Globogobius[68]

Gen. et 2 sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A goby belonging to the subfamily

Aphia
lineage. The type species is G. globulosus; genus also includes G. depressus.

Grandemarinus[83]

Gen. et sp. nov

Cooper et al.

Late Cretaceous (Turonian)

Akrabou Formation

 Morocco

A gar. The type species is G. gherisensis.

Gutingichthys[73]

Gen. et sp. nov

Lin in Lin et al.

Pliocene

Gutingkeng Formation

Taiwan

A viviparous brotula. The type species is G. changi.

Hygophum kentnielseni[75]

Sp. nov

Valid

Schwarzhans & von der Hocht

Miocene

A species of Hygophum.

Hyrcanogobius eccentricus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of

Hyrcanogobius
.

Iridopristis parrisi[84]

Gen. et sp. nov

Valid

Andrews et al.

Danian

Hornerstown Formation

 United States ( New Jersey)

A stem-lineage member of Holocentridae.

Khoratamia[85]

Gen. et sp. nov

Valid

Deesri et al.

Early Cretaceous (Aptian)

Khok Kruat Formation

 Thailand

A member of the family Amiidae belonging to the subfamily Sinamiinae. The type species is K. phattharajani.

Kokenichthys kuteki[70]

Sp. nov

Pindakiewicz, Hryniewicz & Kaim

Early Cretaceous (Valanginian)

 Poland

Kutaichthys[86]

Gen et 2 sp. nov

Valid

Bakaev in Esin & Bakaev

Permian

 Russia
( Komi Republic
 Perm Krai
 Samara Oblast)

An early ray-finned fish belonging to the group Palaeonisciformes and the family Palaeoniscidae. The type species is K. gubini Esin & Bakaev; genus also includes K. dozmerensis Esin & Bakaev. Published online in 2023, but the issue date is listed as December 2022.[86]

Macabi[87]

Gen. et sp. nov

Valid

Recinos et al.

Late Cretaceous (Campanian)

 Mexico

A bonefish. The type species is M. tojolabalensis.

Maeotichthys[68]

Gen. et comb. et sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

 Azerbaijan
 Bulgaria
Crimea

A member of the family

Alosinae. The type species is "Otolithus (Osmeridarum)" wilhelmi Djafarova (2006); genus also includes "Clupea" gomotartziensis Strashimirov (1985), as well as new species Maeotichthys salebrosus Schwarzhans & Bratishko in Schwarzhans, Bratishko & Vernyhorova (2023).[88]

Mataichthys asymmetricus[82]

Sp. nov

Valid

Schwarzhans et al.

Early Miocene

Bannockburn Formation

 New Zealand

A species of Mataichthys.

Mesogobius chersonesus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Mesogobius.

Minicholepis[89]

Gen et sp. nov

Valid

Bulanov, Minikh & Golubev

Permian

 Russia
( Kirov Oblast)

A member of Eurynotoidiformes. The type species is M. primus. Published online in 2023, but the issue date is listed as December 2022.[89]

Myripristis ouarredi[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Myripristis.

Neogobius ignotus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Neogobius.

Neogobius uncinatus[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Neogobius.

Nursallia fenestrata[90]

Sp. nov

Valid

Capasso

Late Cretaceous (Turonian)

Akrabou Formation

 Morocco

A member of Pycnodontiformes belonging to the family Pycnodontidae.

Odontobutis hayashitokuei[91]

Sp. nov

In press

Yabumoto & Zhang

Miocene

Chojabaru Formation

 Japan

A species of Odontobutis.

Ophidion tuseti[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Ophidion.

Opsodentex mordax[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A member of the family Sparidae.

Otarionichthys hofstedtae[75]

Sp. nov

Valid

Schwarzhans & von der Hocht

Miocene

A viviparous brotula.

Palaeoargentina[70]

Gen. et sp. nov

Pindakiewicz, Hryniewicz & Kaim

Early Cretaceous (Valanginian)

 Poland

Genus includes new species P. plicata.

Palaeogadus? belli[92]

Sp. nov

Valid

Stringer & Sloan

Late Cretaceous (Maastrichtian)

Arkadelphia Marl

 United States
( Arkansas)

A member of the family Merlucciidae.

Paleocharacodon[93]

Gen. et sp. nov

Valid

Caballero-Viñas, Alvarado-Ortega & Cantalice Severiano

Pliocene

Atotonilco El Grande Formation

 Mexico

A member of the family Goodeidae belonging to the subfamily Goodeinae. The type species is P. guzmanae.

Palimphemus cimmerius[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A member of the family Gadidae.

Paraclupea pietrarojae[72]

Sp. nov

Valid

Marramà & Carnevale

Early Cretaceous (Albian)

Pietraroja Plattenkalk

 Italy

A member of Clupeomorpha belonging to the group Ellimmichthyiformes and the family Paraclupeidae.

Paramacroramphosus[68]

Gen. et sp. et comb. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

 Azerbaijan
Crimea

A member of the family Macroramphosidae. The type species is P. pumilis; genus also includes "Оtolithus (inc. sedis)" platessaeformis Pobedina (1956).

Parapristipoma bethensis[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Parapristipoma.

Parapsephurus[94]

Gen. et sp. nov

Valid

Hilton et al.

Late Cretaceous (Maastrichtian)

Hell Creek Formation

 United States
( North Dakota)

A paddlefish. The type species is P. willybemisi.

Parascolopsis septentrionalis[75]

Sp. nov

Valid

Schwarzhans & von der Hocht

Miocene

A species of Parascolopsis.

Paroxymetopon[68]

Gen. et sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A dartfish. The type species is P. alienus.

Phoebeannaia[95]

Gen. et sp. nov

Valid

Caron et al.

Carboniferous (Bashkirian)

Marsden Formation

 United Kingdom

An early ray-finned fish, possibly stem-neopterygian. The type species is P. mossae.

Pleuropholis danielae[96]

Sp. nov

Brito & Vullo

Late Cretaceous (Cenomanian)

Akrabou Formation

 Morocco

Pomadasys zemmourensis[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Pomadasys.

Pontogobius[68]

Gen. et 3 sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A goby belonging to the subfamily Gobiinae and to the

Benthophilus
lineage. The type species is P. ahnelti; genus also includes P. trigonus and P. zonatus.

Pronobythites[76]

Gen. et sp. et comb. nov

Valid

Schwarzhans & Nielsen

Eocene

Lillebælt Clay Formation

 Denmark
 France

A cusk-eel. The type species is P. schnetleri; genus also includes "Neobythites" bozzolo Lin, Nolf & Girone in Lin et al. (2016) and "Neobythites" leonardi Lin, Nolf & Girone in Lin et al. (2016).

Protalbula pentangularis[70]

Sp. nov

Pindakiewicz, Hryniewicz & Kaim

Early Cretaceous (Valanginian)

 Poland

Protoelops gracilis[70]

Sp. nov

Pindakiewicz, Hryniewicz & Kaim

Early Cretaceous (Valanginian)

 Poland

Pteralbula polonica[70]

Sp. nov

Pindakiewicz, Hryniewicz & Kaim

Early Cretaceous (Valanginian)

 Poland

Pugiopsephurus[94]

Gen. et sp. nov

Valid

Hilton et al.

Late Cretaceous (Maastrichtian)

Hell Creek Formation

 United States
( North Dakota)

A paddlefish. The type species is P. inundatus.

Rhamphoichthys[97]

Gen. et sp. nov

Valid

El Hossny et al.

Late Cretaceous (Cenomanian)

Hesseltal Formation

 Germany
 Italy
 Lebanon
 United Kingdom

A member of the family Plethodidae. The type species is R. taxidiotis. El Hossny et al. (2023) also interpret fossils of "Protosphyraena" minor and "Protosphyraena" stebbingi as fossil material of Rhamphoichthys sp., but don't consider these to be valid taxa due to the incompleteness of their fossil material.

Rhamphosus bloti[98]

Sp. nov

Valid

Calzoni et al.

Eocene (Ypresian)

Monte Bolca

 Italy

A member of

Dactylopteroidei and the family Rhamphosidae
.

Rhamphosus brevirostris[98]

Sp. nov

Valid

Calzoni et al.

Eocene (Ypresian)

Monte Bolca

 Italy

A member of Syngnathiformes belonging to the group Dactylopteroidei and the family Rhamphosidae.

Rhamphosus longispinatus[98]

Sp. nov

Valid

Calzoni et al.

Eocene (Ypresian)

Monte Bolca

 Italy

A member of Syngnathiformes belonging to the group Dactylopteroidei and the family Rhamphosidae.

Rhamphosus tubulirostris[98]

Sp. nov

Valid

Calzoni et al.

Eocene (Ypresian)

Monte Bolca

 Italy

A member of Syngnathiformes belonging to the group Dactylopteroidei and the family Rhamphosidae.

Rhynchoconger carnevalei[78]

Sp. nov

Schwarzhans

Miocene (Tortonian) and Pliocene (Zanclean)

 Italy

A species of Rhynchoconger.

Saurichthys taotie[99]

Sp. nov

Valid

Fang et al.

Late Triassic (Carnian)

Xiaowa Formation

 China

Announced in 2022; the final article version was published in 2023.

Sciades maldonadonis[100]

Sp. nov

Valid

Carrillo-Briceño et al.

Miocene

La Victoria Formation

 Colombia

A species of Sciades.

Scomber qirimensis[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of Scomber.

Scythogobius[88]

Gen. et sp. nov

Valid

Schwarzhans & Bratishko in Schwarzhans, Bratishko & Vernyhorova

Miocene

Crimea

A member of the family Gobiidae belonging to the tribe Benthophilini. The type species is S. spissus.

Serrivomer glehni[101]

Sp. nov

Valid

Nazarkin

Miocene

Kurasi Formation

 Russia
( Sakhalin Oblast)

A species of Serrivomer.

Spondyliosoma tingitana[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Spondyliosoma.

Stanhopella[102]

Gen. et sp. nov

Valid

Capasso

Late Cretaceous (Cenomanian)

Sannine Formation

 Lebanon

A member of Pycnodontiformes. The type species is S. elongata.

Surlykus[103]

Gen. et sp. nov

Valid

Schrøder & Carnevale

Eocene (Ypresian)

Fur Formation

 Denmark

A member of Argentiniformes. The type is species S. longigracilis.

Thorecichthys fideli[104]

Sp. nov

Than-Marchese et al.

Late Cretaceous (Cenomanian)

Cintalapa Formation

 Mexico

A member of

Clupeomorpha belonging to the group Ellimmichthyiformes
.

Trachinus maroccanus[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Trachinus.

Trachinus wernlii[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Trachinus.

Trachurus gramensis[75]

Sp. nov

Valid

Schwarzhans & von der Hocht

Miocene

A species of Trachurus.

Trachurus insectus[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Trachurus.

Trachurus reineckei[105]

Sp. nov

Valid

Hoedemakers in De Schutter et al.

Oligocene (Rupelian)

Boom Formation

 Belgium

A species of Trachurus.

Treldeichthys[76]

Gen. et comb. nov

Valid

Schwarzhans & Nielsen

Eocene

Lillebælt Clay Formation

 Denmark

A member of Acanthopterygii of uncertain affinities. The type species is "Caproidarum" madseni Schwarzhans (2007).

Uranoscopus hoedemakersi[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Uranoscopus.

Uranoscopus vanhinsberghi[78]

Sp. nov

Schwarzhans

Pliocene (Zanclean)

 Morocco

A species of Uranoscopus.

Vango[106]

Gen. et sp. nov.

Murray et al.

Late Cretaceous (Maastrichtian)

Mahajanga Basin

 Madagascar

A member of the family Chanidae. The type species is V. fahiny.

Vologdinia[89]

Gen et comb. nov

Valid

Bulanov, Minikh & Golubev

Permian

Poldarsa/Poldarskaya Formation

 Russia
( Orenburg Oblast
 Vologda Oblast)

A member of Eurynotoidiformes. The type species is "Isadia" opokiensis Minikh & Andrushkevich (2017). Published online in 2023, but the issue date is listed as December 2022.[89]

Ypsiloichthys[107]

Gen. et sp. nov

Valid

El Hossny & Cavin

Late Cretaceous (Cenomanian)

Sannine Formation

 Lebanon

A teleost of uncertain affinities. The type species is Y. sibelleae.

Zosterisessor pontikapaionensis[68]

Sp. nov

Valid

Bratishko & Schwarzhans in Bratishko, Schwarzhans & Vernyhorova

Miocene

Crimea

A species of

Zosterisessor
.

Ray-finned fish research

  • Figueroa et al. (2023) report brain and cranial nerve soft-tissue preservation in the type specimen of
    Coccocephalus wildi from the Carboniferous strata in the Mountain Fourfoot Mine (Pennine Lower Coal Measures; Lancashire, United Kingdom).[108]
  • Bakaev, Johanson & LeBlanc (2023) study the dental system of Kazanichthys viatkensis, reporting the presence of morphological similarities to the dental systems of extant sparids, and interpreting K. viatkensis as a generalist durophagous feeder.[109]
  • Revision of the fossil material of Permian ray-finned fishes from the Kazankovo-Markino Formation (Kemerovo Oblast, Russia) is published by Bakaev (2023), who considers Heterolepis Sergienko (1974) to be a junior synonym of Eurynotoides Berg (1940).[110]
  • Martill (2023) describes a bony scute of a sturgeon from the Maastrichtian marine phosphatites of central Morocco, representing the first record of an acipenseriform fish from Africa reported to date.[111]
  • New information on the morphology of the scales of members of the family Pseudobeaconiidae, based on new fossil material from the Triassic Santa Clara Abajo Formation (Argentina), is presented by Giordano, Benavente & Suárez (2023).[112]
  • Putative eugnathid amiiform Sinoeugnathus kueichowensis is reinterpreted as a small-sized member of Ionoscopiformes by Feng et al. (2023), who name a new family Subortichthyidae including the genera Subortichthys, Sinoeugnathus, Allolepidotus and Eoeugnathus.[113]
  • Sullivan, Jasinski & Williamson (2023) describe an exceptionally well-preserved articulated skull roof and braincase of Melvius chauliodous from the Upper Cretaceous Kirtland Formation (New Mexico, United States), revise the characters that defin the genus and its two recognized species, and study the phylogenetic affinities of Melvius.[114]
  • A study on the microstructure of teeth of Late Jurassic
    caturoids from the Owadów-Brzezinki site (Poland) is published by Weryński, Błażejowski & Kędzierski (2023), who report structural differences interpreted as suggestive of different adaptations for predation and possible niche partitioning between the studied taxa.[115]
  • Systematic revision of the Late Jurassic species of Caturidae is published by López-Arbarello & Ebert (2023).[116]
  • Fossil material of a putative member of the genus Caturus reported by Bogan, Taverne & Agnolin (2013) as found in the Triassic Los Menucos Group,[117] is reinterpreted by López-Arbarello et al. (2023) as actually collected in outcrops of the Jurassic Vaca Muerta Formation, and excluded from the genus Caturus.[118]
  • Cooper & Maxwell (2023) describe a specimen of Pachycormus macropterus from the Toarcian Posidonia Shale (Germany) preserved with an unusually large ammonite inside its gut, interpreted as ingested immediately prior to and directly responsible for the fish's death.[119]
  • A study on the bone histology of Araripichthys castilhoi, interpreted as corroborating its placement within basal Teleostei, is published by Mayrinck et al. (2023).[120]
  • Stinnesbeck et al. (2023) report the presence of two different body shape types of specimens of Tselfatia formosa from the Turonian platy limestone deposit of Vallecillo (Mexico), intepreted as evidence of sexual dimorphism, and interpret the anatomy of its fins as indicating that T. formosa lived in a deep water environment and that its lifestyle resembled that of extant fan fishes.[121]
  • Cooper & Norton (2023) describe fossil material of an indeterminate plethodid from the Maastrichtian deposits from the Plateau des Phosphates (Morocco), representing the youngest occurrence of a plethodid reported to date.[122]
  • Redescription and a study on the affinities of Sorbinichthys elusivo is published by Taverne & Capasso (2023).[123]
  • Fossil material of a catfish, representing the first record of a bony fish from the Maastrichtian of the Marília Formation (Brazil) and extending known Late Cretaceous catfish distribution, is described by Candeiro et al. (2023).[124]
  • A study on the fossil record of acanthomorphs from the MaastrichtianPaleocene strata is published by Friedman et al. (2023), who find that the majority of the principal acanthomorph groups appear in the fossil record before the end of the Paleocene.[125]
  • A study on the variety of the morphology of the first abdominal vertebral centrum in extant acanthomorphs is published by Murray & Brinkman (2023), who interpret their findings as indicating that the overall morphology of the first centrum is conservative within acanthomorph families, and that it is possible to assign many fossil acanthomorph centra to extant families, suborders or orders.[126]
  • Rust & Robinson (2023) redescribe Eothyrsites holosquamatus, and interpret this taxon as likely representing an ancestral form of gempylid.[127]
  • Fossil material representing one of the oldest records of
    xiphiids and aglyptorhynchine palaeorhynchids from the Northern Alpine Foreland Basin and from the Oligocene Chandler Bridge Formation (South Carolina, United States).[128]
  • Ngoepe et al. (2023) reconstruct the history of arrival order and relative abundances of major fish groups from Lake Victoria, using data from the continuous fossil record from the preceding 17,000 years, and report that cichlids did not dominate the assemblage until several thousand years into its history, but they were the only major group that had the ecological versatility that allowed them to persist once the new deep and open-water habitats emerged.[129]
  • Evidence from (mostly lanternfish) otoliths from the Lindos Bay Formation (Rhodes, Greece), interpreted as indicative of an overall decline of the median size of lanternfishes in the eastern Mediterranean during MIS 19 interglacial, but also as indicative of different trends in size in individual mesopelagic species across the studied time interval, is presented by Agiadi et al. (2023).[130]

Lobe-finned fishes

Name Novelty Status Authors Age Type locality Location Notes Images

Braccodus[131]

Gen. et sp. nov

Valid

Elliott, Challands & Smithson

Carboniferous

 United Kingdom

A lungfish. The type species is B. kerri.

Ceratodus shishkini[132]

Sp. nov

Valid

Minikh

Triassic

 Russia
( Orenburg Oblast)

A lungfish. Published online in 2023, but the issue date is listed as December 2022.[132]

Eusthenodon leganihanne[133]

Sp. nov

Downs et al.

Devonian (Famennian)

Catskill Formation

 United States
( Pennsylvania)

Hyneria udlezinye[134]

Sp. nov

Valid

Gess & Ahlberg

Devonian (Famennian)

Witpoort Formation

 South Africa

Janvierpaucidentes[135]

Gen. et sp. nov

Valid

Johanson et al.

Devonian (Pragian)

Wood Bay Formation

 Norway

A lungfish. The type species is J. tuulingi.

Lanarkodus[131]

Gen. et sp. nov

Valid

Elliott, Challands & Smithson

Carboniferous

 United Kingdom

A lungfish. The type species is L. clarki.

Rhizodopsis rankini[136]

Sp. nov

Elliott

Carboniferous

 United Kingdom

A member of the family Megalichthyidae.

Rieppelia[137]

Gen. et sp. nov

Valid

Ferrante & Cavin

Middle Triassic (Anisian)

Besano Formation

  Switzerland

A coelacanth belonging to the family Latimeriidae. The type species is R. heinzfurreri.

Ticinepomis ducanensis[138]

Sp. nov

Valid

Ferrante et al.

Middle Triassic

Prosanto Formation

  Switzerland

A coelacanth belonging to the family Latimeriidae.

Whiteia giganteus[139] Sp. nov Brownstein Late Triassic Dockum Group  United States ( Texas) A coelacanth.

Lobe-finned fish research

  • Dupret et al. (2023) describe new fossil material of sarcopterygians from the Devonian (
    Euramerica happened as early as middle Givetian.[140]

General research

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