2025 in paleoichthyology
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This list of fossil fish research presented in 2025 is a list of new fossil taxa of jawless vertebrates, placoderms, 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 2025.
Cartilaginous fishes
[edit]| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
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Gen. et sp. nov |
Valid |
Duffin, Lauer & Lauer |
A member of Petalodontiformes belonging to the family Janassidae. The type species is B. beaveri. |
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Gen. et sp. nov |
Valid |
Saugen et al. |
A neoselachian. The type species is E. serrasis. |
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Sp. nov |
Valid |
Saugen et al. |
Early Triassic |
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Gen. et sp. nov |
Valid |
Saugen et al. |
Early Triassic |
A neoselachian. The type species is W. marmieri. |
Cartilaginous fish research
[edit]- Gayford & Jambura (2025) review evidence of different drivers of diversification of elasmobranchs throughout their evolutionary history.[3]
- Evidence from the study of oxygen isotope composition of teeth of Cretoxyrhina mantelli, Cretalamna appendiculata, Scapanorhynchus texanus, Squalicorax kaupi, Squalicorax pristodontus and Ptychodus mortoni from the Upper Cretaceous strata from the Gulf Coastal Plain, interpreted as likely indicative of increased body temperature of P. mortoni and indicative of active heating and migration from warmer waters by C. mantelli, is presented by Comans, Tobin & Totten (2025)[4]
- Amadori et al. (2025) reconstruct the lower crushing plate of Ptychodus decurrens on the basis of new fossil material from the Upper Cretaceous strata in Croatia.[5]
- Greenfield (2025) reidentify the large rostrum and four fragmentary rostral denticles from the Dakhla Formation originally attributed to Onchopristis sp. by Capasso et al. (2024)[6] as Sclerorhynchoidei indet. and Sclerorhynchus cf. leptodon, respectively.[7]
Ray-finned fishes
[edit]| Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
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Sp. nov |
Valid |
Plax, Bakaev & Naugolnykh |
Ray-finned fish research
[edit]- Cooper et al. (2025) study the skull roof anatomy of Gyrosteus mirabilis, and interpret both G. mirabilis and Strongylosteus hindenburgi as species distinct from Chondrosteus acipenseroides.[9]
Lobe-finned fishes
[edit]Lobe-finned fish research
[edit]- Cui et al. (2025) provide new information on the anatomy of Styloichthys changae, and study the evolution of cosmine in lobe-finned fishes.[10]
References
[edit]- ^ Duffin, C. J.; Lauer, B.; Lauer, R. (2025). "New Janassid Petalodontiform (Chondrichthyes) teeth from the Late Carboniferous of Kansas, USA". Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen. doi:10.1127/njgpa/2025/1231.
- ^ a b c Saugen, S. M.; Roberts, A. J.; Engelschiøn, V. S.; Hurum, J. H. (2025). "A new assemblage of Lower Triassic neoselachians (Chondrichthyes) from the Grippia Bonebed of Spitsbergen, Norway". Journal of Vertebrate Paleontology. e2426544. doi:10.1080/02724634.2024.2426544.
- ^ Gayford, J. H.; Jambura, P. L. (2025). "Drivers of diversification in sharks and rays (Chondrichthyes: Elasmobranchii)". Frontiers in Ecology and Evolution. 12. 1530326. doi:10.3389/fevo.2024.1530326.
- ^ Comans, C. M.; Tobin, T. S.; Totten, R. L. (2025). "Oxygen isotope composition of teeth suggests endothermy and possible migration in some Late Cretaceous shark taxa from the Gulf Coastal Plain, USA". Paleobiology: 1–13. doi:10.1017/pab.2024.45.
- ^ Amadori, M.; Japundžić, S.; Amalfitano, J.; Giusberti, L.; Fornaciari, E.; Jambura, P. L.; Kriwet, J. (2025). "New insights on the shell-crusher shark Ptychodus decurrens Agassiz, 1838 (Elasmobranchii, Ptychodontidae) based on the first known articulated dentition from the Upper Cretaceous of Croatia". Swiss Journal of Palaeontology. 144. 2. doi:10.1186/s13358-024-00340-7.
- ^ Capasso, L.; Abdel Aziz, S.; Tantawy, A. A.; Mousa, M. K.; Wahba, D. G. A.; Abu El-Kheir, G. A. (2024). "The first described Onchopristis Stromer, 1917, (Elasmobranchii: †Onchopristidae) from the Marine Maastrichtian of Dakhla Formation, Western Desert, Egypt". Journal of African Earth Sciences. 220. 105415. Bibcode:2024JAfES.22005415C. doi:10.1016/j.jafrearsci.2024.105415.
- ^ Greenfield, T. (2025). "No evidence for a giant, late-surviving Onchopristis: Comment on Capasso et al. (2024)". Journal of African Earth Sciences. 105541. doi:10.1016/j.jafrearsci.2025.105541.
- ^ Plax, D. P.; Bakaev, A. S.; Naugolnykh, S. V. (2025). "A new species of the Devonian actinopterygian fish Moythomasia from Belarus". Rivista Italiana di Paleontologia e Stratigrafia. 131 (1): 25–38. doi:10.54103/2039-4942/22868.
- ^ Cooper, S. L. A.; Jacobs, M.; Ferrari, L.; Martill, D. M. (2025). "Skull roof anatomy of the Early Jurassic (Toarcian) acipenseriform †Gyrosteus mirabilis Woodward ex Agassiz, from Yorkshire, England, elucidates diversity of †Chondrosteidae". Proceedings of the Geologists' Association. doi:10.1016/j.pgeola.2024.12.004.
- ^ Cui, X.; Qiao, T.; Peng, L.; Zhu, M. (2025). "New material of the Early Devonian sarcopterygian Styloichthys changae illuminates the origin of cosmine". Journal of Systematic Palaeontology. 23 (1). 2432273. doi:10.1080/14772019.2024.2432273.