2024 In Paleoichthyology
This list of fossil fish research presented in 2024 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes, and other fishes that were described during the year, as well as other significant discoveries and events related to paleoichthyology that occurred in 2024.
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Jawless vertebrates
| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Sp. nov | Valid | Huang et al. | Early Cretaceous | A lamprey. | ||||
| Changxingaspis nianzhongi | Sp. nov | Li et al. | Silurian | Tataertag Formation | A member of Galeaspida belonging to the family Xiushuiaspidae. |
Jawless vertebrate research
- Brookfield (2024) interprets Jamoytius kerwoodi as a probable detritivore or herbivore feeding on Dictyocaris (interpreted by the author as possible algal thalli).
- Description of the feeding apparatus of Rhinopteraspis dunensis, interpreted as composed of 13 plates that were capable of rotating around the transverse axis, is published by Dearden et al. (2024), who interpret R. dunensis as a suspension or deposit feeder.
- Shan et al. (2024) describe new fossil material of "Dongfangaspis" qujingensis and Damaspis vartus from the Devonian Xishancun Formation (China), and reinterpret "D." qujingensis as a member of the genus Damaspis.
Placoderms
Placoderm research
- Jobbins et al. (2024) describe new fossil material of Alienacanthus malkowskii, providing evidence of elongation of the lower jaw which was twice as long as the skull.
Acanthodians
| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Sp. nov | Valid | Gess & Burrow | Devonian (Famennian) | A gyracanthid acanthodian. | ||||
| Sp. nov | Valid | Snyder, Burrow & Turner | Carboniferous (Mississippian) | A gyracanthid acanthodian. |
Cartilaginous fishes
| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Aellopobatis | Gen. et sp. nov | Valid | Türtscher et al. | Late Jurassic (Tithonian) | A member of Batomorphii belonging to the family Spathobatidae. The type species is A. bavarica. | |||
| Amtaaguar | Gen. et comb. nov | De Pasqua et al. | Neogene | An eagle ray. The type species is "Myliobatis" crassus (Gervais, 1859). | ||||
| Belgabatis | Gen. et comb. nov | Valid | Reinecke et al. | Paleogene | A dasyatoid batomorph. The type species is "Dasyatis" thierryi Smith (1999). | |||
| Casierabatis | Gen. et sp. comb. nov | Valid | Reinecke et al. | Paleogene | A dasyatoid batomorph. Genus includes new species C. lambrechtsi, as well as "Trygon" jaekeli Leriche (1905). | |||
| Centrodeania | Gen. et 2 sp. nov | Valid | Feichtinger et al. | Paleocene (Danian) | A member of the family Centrophoridae. The type species is C. rugosa; genus also includes C. annae. | |||
| Gen. et sp. nov | Valid | Bronson et al. | Carboniferous (Mississippian) | Fayetteville Shale | A member of the family Falcatidae. The type species is C. mehlingi. | |||
| Essexraja | Gen. et sp. nov | Valid | Reinecke et al. | Eocene | A batomorph. The type species is E. ypresiensis. | |||
| Eurasiabatis | Gen. et sp. nov | Valid | Reinecke et al. | Paleogene | Tielt Formation | A batomorph. The type species is E. occlusostriata. | ||
| Glaucopristis | Gen. et comb. nov | Valid | Reinecke et al. | Paleogene | A rhinopristiform batomorph. The type species is "Rhinobatus" bruxelliensis Jaekel (1894). | |||
| Sp. nov | Valid | Hodnett et al. | Carboniferous (Mississippian) | |||||
| Incognitorapax | Gen. et sp. nov | Valid | Feichtinger et al. | Late Cretaceous (Maastrichtian) and Paleocene (Danian) | A member of the family Etmopteridae. The type species is I. fernsebneri. | |||
| Orthacanthus adamas | Nom. nov | Valid | Babcock | Carboniferous | Upper Freeport Coal | A replacement name for Orthacanthus gracilis Newberry (1875). | ||
| Orthacanthus lintonensis | Nom. nov | Valid | Babcock | Carboniferous | Upper Freeport Coal | A replacement name for Diplodus gracilis Newberry (1857). | ||
| Palaeohypotodus bizzocoi | Sp. nov | Valid | Ebersole, Cicimurri & Harrell | Paleocene (Danian) | A member of Lamniformes belonging to the family Jaekelotodontidae. | |||
| Sp. nov | Valid | Breeden et al. | Late Triassic (Carnian) | Momonoki Formation | A lonchidiid hybodontiform. | |||
| Pteroscyllium downesi | Sp. nov | Valid | Duffin & Batchelor | Early Cretaceous (Aptian) | A carcharhiniform shark with affinities with catsharks. | |||
| Scyliorhinus alaformis | Sp. nov | Valid | Feichtinger et al. | Paleocene (Danian) | Oiching Formation | A species of Scyliorhinus. | ||
| Serratodasyatis | Gen. et comb. nov | Valid | Reinecke et al. | Paleogene | A dasyatoid batomorph. The type species is "Dasyatis" tricuspidatus Casier (1946). | |||
| Sheppeytrygon | Gen. et comb. nov | Valid | Reinecke et al. | Eocene | London Clay | A dasyatoid batomorph. The type species is "Dasyatis" davisi Casier (1966). | ||
| Troglocladodus | Gen. et sp. nov | Valid | Hodnett et al. | Carboniferous (Mississippian) | A ctenacanthid. Genus includes T. trimblei. | |||
| Vectiscyllium | Gen. et sp. nov | Valid | Duffin & Batchelor | Early Cretaceous (Aptian) | A carcharhiniform shark with affinities with catsharks. The type species is V. atherfieldensis. | |||
| Sp. nov | Dos Santos et al. | Late Cretaceous (Maastrichtian) | Antarctica | A cow shark. |
Cartilaginous fish research
- Schnetz et al. (2024) study the completeness of the Paleozoic fossil record of chondrichthyans, finding it to be significantly lower compared to other investigated vertebrate groups.
- A study on the diversification of chondrichthyans throughout the Paleozoic is published by Schnetz et al. (2024), who report evidence indicative of two increases of diversification rates in the earliest Devonian and in the earliest Carboniferous,and of dispersal into deeper-water environments in the aftermath of the Hangenberg event.
- A diverse assemblage of cartilaginous fish fossils is described from the Eocene Osinovaya Formation (Rostov Oblast, Russia) by Popov et al. (2024).
- The oldest fossil material of members of the genus Strophodus from Gondwana reported to date is described from the ?Early to Middle Jurassic succession of Kachchh Basin (India) by Bhosale et al. (2024).
- Cuny & Chanthasit (2024) describe egg capsules of Palaeoxyris sp. from the Jurassic Phu Kradung Formation (Thailand), interpreted as indicating that at least some hybodont sharks in Jurassic Thailand reproduced in fresh waters.
- Vullo et al. (2024) describe new fossil material of Ptychodus from the Upper Cretaceous strata in Mexico, providing evidence that Ptychodus was a high-speed mackerel shark that likely fed on nektonic hard-shelled prey such as ammonites and sea turtles.
- Shimada et al. (2024) describe two isolated teeth of Megalolamna paradoxodon from the Miocene Calvert Formation (Maryland, United States), representing the northernmost record of Megalolamna reported to date, and a tooth from the Oligocene Chandler Bridge Formation (South Carolina, United States) which might represent the geologically oldest record of a member of the genus Megalolamna reported to date.
- Sternes et al. (2024) reevaluate the accuracy of the body form of Otodus megalodon inferred by Cooper et al. (2022), compare an incomplete vertebral column of a specimen of O. megalodon from the Miocene of Belgium with corresponding parts of the vertebral columns of extant white sharks, and argue that O. megalodon had an elongated body relative to the body of the white shark.
- The first fossil tooth of a shark (great white shark) embedded in a seal bone reported to date is described from the Peace River Formation (Florida, United States) by Godfrey et al. (2024).
- Greenfield (2024) coins the name Arthrobatidae as a replacement for the invalid name of the possible batomorph family Arthropteridae.
Ray-finned fishes
| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Afrocascudo | Gen. et sp. nov | In press | Brito et al. | Late Cretaceous | Kem Kem Group | A member of the family Loricariidae. The type species is A. saharaensis. | ||
| Angiolinia | Gen. et sp. nov | Valid | Carnevale & Tyler | Eocene | A member of the family Zanclidae. The type species is A. mirabilis. | |||
| Barschichthys | Gen. et sp. nov | Valid | Arratia & Schultze | Middle Triassic (Anisian) | A member of Teleosteomorpha, the type genus of the new family Barschichthyidae. The type species is B. ruedersdorfensis. | |||
| Beksinskiella | Gen. et comb. nov | Valid | Granica, Bieńkowska-Wasiluk & Pałdyna | Oligocene | A member of Clupeoidei of uncertain affinities. The type species is "Meletta" longimana Heckel (1850). | |||
| Cretapantodon | Gen. et sp. nov | Valid | Taverne | Late Cretaceous (Cenomanian) | A member of the family Pantodontidae. The type species is C. polli. | |||
| Sp. nov | In press | Ahnelt, Bradić-Milinović & Schwarzhans | Oligocene | |||||
| Gregarialepis | Gen. et sp. nov | Valid | Bakaev & Sergienko in Bakaev | Permian | Leninsk Formation | A member of Elonichthyiformes. The type species is G. binaria. | ||
| Lates odessanus | Sp. nov | Kovalchuk et al. | Miocene | A species of Lates. | ||||
| Macroprosopon | Gen. et sp. nov | Valid | Capobianco, Zouhri & Friedman | Eocene (Ypresian) | A member of the family Osteoglossidae belonging to the subfamily Phareodontinae. The type species is M. hiltoni. | |||
| Megalomatia | Gen. et sp. nov | Valid | Kim et al. | Late Triassic | Amisan Formation | A basal ray-finned fish. The type species is M. minima. | ||
| Planalepis | Gen. et sp. nov | Valid | Bakaev & Sergienko in Bakaev | Permian | Tailugan Formation | A member of Elonichthyiformes. The type species is P. diserta. | ||
| Pseudopholidoctenus | Gen. et sp. nov | Valid | Arratia & Schultze | Middle Triassic (Anisian) | Muschelkalk | A member of the family Pholidophoridae. The type species is P. germanicus. | ||
| Ruedersdorfia | Gen. et sp. nov | Valid | Arratia & Schultze | Middle Triassic (Anisian) | Muschelkalk | A member of Teleosteomorpha of uncertain affinities. The type species is R. berlinensis. | ||
| Toarcocephalus | Gen. et sp. nov | Valid | Cooper, López-Arbarello & Maxwell | Early Jurassic (Toarcian) | A member of the family Coccolepididae. The type species is T. morlok. |
Otolith taxa
| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Advenasciaena | Gen. et sp. nov | Valid | Kocsis et al. | Miocene | Miri Formation | A member of the family Sciaenidae. The type species is A. bruneiana. | ||
| Akko canoa | Sp. nov | Schwarzhans & Aguilera | Pleistocene (Gelasian) | A species of Akko. | ||||
| Akko lobata | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Yaviza Formation | A species of Akko. | |||
| Antilligobius collinsae | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) to Pleistocene (Gelasian) | Escudo de Veraguas Formation | A species of Antilligobius. | |||
| Aruma atlantica | Sp. nov | Schwarzhans & Aguilera | Pliocene (Piacenzian) to Pleistocene (Calabrian) | Bastimentos Formation | A species of Aruma. | |||
| Atrobucca borneensis | Sp. nov | Valid | Kocsis et al. | Miocene | Seria Formation | A species of Atrobucca. | ||
| Barbulifer amplus | Sp. nov | Schwarzhans & Aguilera | Pleistocene (Gelasian and Calabrian) | Swan Cay Formation | A species of Barbulifer. | |||
| Bollmannia angosturae | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | A species of Bollmannia. | ||||
| Bollmannia baldwinae | Sp. nov | Schwarzhans & Aguilera | Miocene (Langhian to Messinian) | Yaviza Formation | A species of Bollmannia. | |||
| Bollmannia cubaguana | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cubagua Formation | A species of Bollmannia. | |||
| Bollmannia ornatissima | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | Yaviza Formation | A species of Bollmannia. | |||
| Bollmannia? paraguanaensis | Sp. nov | Schwarzhans & Aguilera | Miocene (Burdigalian) | Cantaure Formation | Possibly a species of Bollmannia. | |||
| Bollmannia propensa | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | A species of Bollmannia. | ||||
| Bollmannia trinidadensis | Sp. nov | Schwarzhans & Aguilera | Miocene (Burdigalian and Langhian) | A species of Bollmannia. | ||||
| Bollmannia venezuelana | Sp. nov | Schwarzhans & Aguilera | Miocene (Langhian to Tortonian) | Ojo de Agua Formation | A species of Bollmannia. | |||
| Brassoichthys | Gen. et sp. nov | Schwarzhans & Aguilera | Miocene (Langhian) | Brasso Formation | A goby. The type species is B. tornabenei. | |||
| Bruneisciaena | Gen. et sp. nov | Valid | Kocsis et al. | Miocene | Miri Formation | A member of the family Sciaenidae. The type species is B. schwarzhansi. | ||
| Chriolepis altus | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Yaviza Formation | A species of Chriolepis. | |||
| Chriolepis balboa | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Angostura Formation | A species of Chriolepis. | |||
| Coryphopterus cuevae | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Tuira Formation | A species of Coryphopterus. | |||
| Coryphopterus rodriguezi | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | Chucunaque Formation | A species of Coryphopterus. | |||
| Coryphopterus xenosus | Sp. nov | Schwarzhans & Aguilera | Miocene (Messinian) and Pliocene (Zanclean) | Cubagua Formation | A species of Coryphopterus. | |||
| Ctenogobius darienensis | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Yaviza Formation | A species of Ctenogobius. | |||
| Cubaguanichthys | Gen. et sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cubagua Formation | A goby. The type species is C. lanceolatus. | |||
| Diaphus ichishiensis | Sp. nov | Valid | Tsuchiya et al. | Miocene | A species of Diaphus. | |||
| Evermannia chiriquiensis | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cayo Agua Formation | A species of Evermannia. | |||
| Evermannia? problematica | Sp. nov | Schwarzhans & Aguilera | Miocene (Burdigalian and Tortonian) | Cantaure Formation | Possibly a species of Evermannia. | |||
| Gillichthys caribbaeus | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Manzanilla Formation | A species of Gillichthys. | |||
| Gnatholepis gunae | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Gatun Formation | A species of Gnatholepis. | |||
| Gobiosoma emberae | Sp. nov | Schwarzhans & Aguilera | Miocene (Messinian) | Chucunaque Formation | A species of Gobiosoma. | |||
| Gobulus limonensis | Sp. nov | Schwarzhans & Aguilera | Pleistocene (Gelasian) | Moin Formation | A species of Gobulus. | |||
| Ilypnus arayanensis | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cubagua Formation | A species of Ilypnus. | |||
| Magnogobius | Gen. et 2 sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) to Pleistocene (Gelasian) | Cercado Formation | A goby. The type species is M. grandis; genus also includes M. costaricensis. | |||
| Microgobius aphioides | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cubagua Formation | A species of Microgobius. | |||
| Microgobius camur | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) to Pleistocene (Calabrian) | Escudo de Veraguas Formation | A species of Microgobius. | |||
| Microgobius cantaurensis | Sp. nov | Schwarzhans & Aguilera | Miocene (Burdigalian to Tortonian) | Cantaure Formation | A species of Microgobius. | |||
| Microgobius chocorum | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Tuira Formation | A species of Microgobius. | |||
| Microgobius cumana | Sp. nov | Schwarzhans & Aguilera | Pleistocene (Calabrian) | Cumaná Formation | A species of Microgobius. | |||
| Microgobius ecuadorensis | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Angostura Formation | A species of Microgobius. | |||
| Microgobius glaber | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | Manzanilla Formation | A species of Microgobius. | |||
| Microgobius pezoldi | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | Chucunaque Formation | A species of Microgobius. | |||
| Microgobius pirabasensis | Sp. nov | Schwarzhans & Aguilera | Miocene (Aquitanian to Burdigalian) | Pirabas Formation | A species of Microgobius. | |||
| Microgobius praeglaber | Sp. nov | Schwarzhans & Aguilera | Miocene (Langhian to Tortonian) | Brasso Formation | A species of Microgobius. | |||
| Microgobius robertsoni | Sp. nov | Schwarzhans & Aguilera | Miocene (Aquitanian to Burdigalian) | Cantaure Formation | A species of Microgobius. | |||
| Microgobius rohri | Sp. nov | Schwarzhans & Aguilera | Miocene (Burdigalian) | Brasso Formation | A species of Microgobius. | |||
| Microgobius verecundus | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian to Messinian) | Tuira Formation | A species of Microgobius. | |||
| Myctophum isense | Sp. nov | Valid | Tsuchiya et al. | Miocene | A species of Myctophum. | |||
| Nezumia armentrouti | Sp. nov | Stringer & Welton | Oligocene | A species of Nezumia. | ||||
| Nibea ambugensis | Sp. nov | Valid | Kocsis et al. | Miocene | Seria Formation | A species of Nibea. | ||
| Nibea stintoni | Sp. nov | Valid | Kocsis et al. | Miocene | Miri Formation | A species of Nibea. | ||
| Palatogobius magnus | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cayo Agua Formation | A species of Palatogobius. | |||
| Palatogobius pacificus | Sp. nov | Schwarzhans & Aguilera | Pleistocene (Calabrian) | Armuelles Formation | A species of Palatogobius. | |||
| Palatogobius vantasselli | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian and Messinian) | Manzanilla Formation | A species of Palatogobius. | |||
| Parrella lucida | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Manzanilla Formation | A species of Parrella. | |||
| Proparrella | Gen. et 2 sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) to Pliocene (Zanclean) | Tuira Formation | A goby. The type species is P. darienensis; genus also includes P. pusilla. | |||
| Protonibea nolfi | Sp. nov | Valid | Kocsis et al. | Miocene | Miri Formation | A species of Protonibea. | ||
| Quietula rueberi | Sp. nov | Schwarzhans & Aguilera | Miocene (Tortonian) | Manzanilla Formation | A species of Quietula. | |||
| Varicus pliocenicus | Sp. nov | Schwarzhans & Aguilera | Pliocene (Zanclean) | Cubagua Formation | A species of Varicus. | |||
| Vinciguerria rotunda | Sp. nov | Valid | Tsuchiya et al. | Miocene | A species of Vinciguerria. |
Ray-finned fish research
- New, rank-free classification of extant and extinct ray-finned fishes is presented by Near & Thacker (2024).
- Kumar et al. (2024) describe fossil material of a member of the genus Cylindracanthus from the Eocene Naredi Formation (India), extending known geographical distribution of members of the genus.
- Cavin et al. (2024) describe fossil material of a large-bodied ray-finned fish from a Lower Triassic outcrop in northern Dobrogea (Romania), with anatomy interpreted as indicative of affinities with Polzbergiidae, and interpret the studied fossils as belonging to the earliest known large, specialized, durophagous neopterygian.
- Review of the fossil record of non-marine members of Pycnodontiformes is published by Cawley & Kriwet (2024), who report that the incursions of pycnodontiforms into brackish and freshwater habitats increased during the Cretaceous period, when the rising sea levels might have made it easier for marine fishes to colonize continental environments.
- Revision of evidence of growth and aging in the fossil material of pycnodonts is published by Capasso (2024), who find no evidence for a single overall pattern of somatic growth, but reports evidence of specific changes which seem to be common in the studied pycnodonts.
- Weis et al. (2024) study gut contents of pachycormid specimens from the Toarcian strata in Luxembourg, and report that the studied pachycormids fed on octobrachian cephalopods.
- Cooper (2024) describes fossil material of Pachycormus macropterus from the Toarcian strata in Normandy (France) representing the first direct evidence of cannibalism in a pachycormiform fish reported to date.
- Redescription of Aphnelepis australis, based on data from a new specimen from the Talbragar fossil site (Australia), is published by Bean (2024), who assigns A. australis to the teleost family Archaeomaenidae.
- Cantalice et al. (2024) describe fossil material of a previously unknown albuliform from the Campanian strata from the Múzquiz Lagerstätte (Austin Group; Coahuila, Mexico), estimated to be approximately 3,9 metres long and representing the largest albuliform reported to date.
- Claeson et al. (2024) present a new reconstruction of Oncorhynchus rastrosus, interpreting its enlarged teeth as projecting laterally like tusks.
- Redescription of Whitephippus tamensis is published by Davesne & Andrews et al. (2024), who interpret this taxon as an early member of Lampriformes, likely related to extant opahs and oarfishes and providing the earliest known evidence of adaptation of lampriforms to the pelagic environment.
- Laine et al. (2024) sequence three-spined stickleback genomes from Late Pleistocene sediments from the Jossavannet lake (Finnmark, Norway), who identify more marine- than freshwater-associated ancestry in the studied genomes, but also find evidence that freshwater-associated alleles were already established at known loci of large effect during the brackish phase of the formation of the lake.
- Miyata et al. (2024) describe an assemblage of marine fish otoliths from the Lower Cretaceous Kimigahama Formation (Japan), including the oldest known fossil material of members of the family Ichthyotringidae, as well as of otoliths of pterothrissine bonefishes, elopiforms and herring smelts indicative of cosmopolitan distribution of these groups during the Early Cretaceous.
- Evidence from the skeletal and otolith fossil record, interpreted as indicative of presence of rich and diverse teleost assemblages in known Maastrichtian marine settings which were significantly affected by the Cretaceous–Paleogene extinction event, is presented by Schwarzhans, Carnevale & Stringer (2024), who also find that perciforms and related groups, ophidiiforms and gadiforms underwent an explosive radiation and diversification in the early Paleogene.
Lobe-finned fishes
| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Gen. et sp. nov | Valid | Choo et al. | Devonian (Givetian–Frasnian) | Parke Siltstone | A basal member of Tetrapodomorpha. The type species is H. zhumini. | |||
| Jemalongia | Gen. et sp. nov | Young | Devonian | Cloghnan Shale | A probable member of Porolepiformes. The type species is J. ritchiei. |
Lobe-finned fish research
- Stewart et al. (2024) describe the anatomy of the axial skeleton of Tiktaalik roseae, providing evidence of the appearance of the evolution of increased mobility at the head-trunk boundary prior to the origin of limbs, as well as evidence of the presence of derived features of the anatomy of the ribs that were previously known only from limbed taxa, and interpret the anatomy of T. roseae as indicative of a locomotor capacity intermediate between those of other elpistostegalians and those of limbed vertebrates.
General research
- A diverse assemblage of fish remains, including the youngest fossil material of Bransonella lingulata reported to date, is described from the Carboniferous (Gzhelian) Finis Shale (Texas, United States) by Ivanov & Seuss (2024).
- Boles et al. (2024) describe a new assemblage of vertebrate microfossils from the Cretaceous-Paleogene transition from the Hornerstown Formation (New Jersey, United States), including the first Cretaceous (Maastrichtian) records of Palaeogaleus vincenti and Paralbula marylandica and the first Paleocene record of Saurocephalus lanciformis, extending known geographic range of Saurocephalus, Phyllodus paulkatoi and Notidanodon brotzeni, and providing evidence of slow recovery of elasmobranchs and ray-finned fish after the Cretaceous–Paleogene extinction event.
References
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