2025 in arthropod paleontology

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2025 in arthropod paleontology is a list of new arthropod fossil taxa, including arachnids, crustaceans, trilobites, and other arthropods (except insects, which have their own list) that were announced or described, as well as other significant arthropod paleontological discoveries and events which occurred in 2025.

Chelicerates

Arachnids

Amblypygi

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Image
Phrynus luisdearmasi^[1]	Sp. nov	Valid	Dunlop & Bartel	Miocene (probably Burdigalian)	Dominican amber	Dominican Republic	A species of Phrynus.
Phrynus poinari^[1]	Nom. nov	Valid	Dunlop & Bartel	Miocene	Mexican amber	Mexico	A species of Phrynus; a replacement name for Phrynus mexicana Poinar & Brown (2004).

Sarcoptiformes

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Image
Paralycus ekaterinae^[2]	Sp. nov	Valid	Kolesnikov et al.	Eocene (Priabonian)	Rovno amber	Ukraine	A member of Oribatida belonging to the family Pediculochelidae.
Paralycus primus^[2]	Sp. nov	Valid	Kolesnikov et al.	Late Cretaceous (Cenomanian)	Kachin amber	Myanmar	A member of Oribatida belonging to the family Pediculochelidae.

Scorpiones

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Archaeoananteroides carusoi^[3]	Sp. nov	Valid	Lourenço in Lourenço & Velten	Cretaceous	Kachin amber	Myanmar	A scorpion belonging to the superfamily Buthoidea and the family Ananteridae.
Cretaceoushormiops petersi^[4]	Sp. nov	Valid	Lourenço in Lourenço & Velten	Cretaceous	Kachin amber	Myanmar	A scorpion belonging to the family Protoischnuridae.
Jeholia^[5]	Gen. et sp. nov		Xuan et al.			China	The type species is J. longchengi.

Scorpion research

Xuan et al. (2025) revise scorpions from the family Chaerilobuthidae known from the Cretaceous Kachin amber from Myanmar, reinterpret Chaeriloiurus and Serratochaerilobuthus as junior synonyms of the genus Chaerilobuthus, and rerank the family Chaerilobuthidae itself as a subfamily belonging to the family Pseudochactidae.^[6]

Crustaceans

Malacostracans

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Mioapseudes^[7]	Gen. et sp. nov	Valid	Wallaard	Miocene		Cyprus	A tanaidacean. The type species is M. mediterraneus.

Ostracods

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Aurila costabausaensis^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Aurila daphnidis^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Aurila mazzarinoensis^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Aurila sanctiandreae^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Cytheretta buccheriensis^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Lophocythere? jhuranensis^[9]	Sp. nov	Valid	Kumari & Mahalakshmi in Mahalakshmi, Kumari & Muduli	Late Jurassic (Kimmeridgian)	Jhuran Formation	India	Published online in 2025, but the issue date is listed as December 2024.
Macrodentina jaduraensis^[9]	Sp. nov	Valid	Kumari & Mahalakshmi in Mahalakshmi, Kumari & Muduli	Late Jurassic (Kimmeridgian)	Jhuran Formation	India	Published online in 2025, but the issue date is listed as December 2024.
Patellacythere lineata^[9]	Sp. nov	Valid	Kumari & Mahalakshmi in Mahalakshmi, Kumari & Muduli	Late Jurassic (Kimmeridgian)	Jhuran Formation	India	Published online in 2025, but the issue date is listed as December 2024.
Perissocytheridea (Kroemmelbeinella) hiblaea^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Tenedocythere forticostata^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy
Verrucocythereis verrucomurata^[8]	Sp. nov		Sciuto, Baldanza & Reitano	Pliocene		Italy

Ostracod research

Wang et al. (2025) revise the ostracod fauna from the Upper Cretaceous Liwaxia and Madongshan formations (China), correlate it with contemporaneous ostracod faunas from China and Mongolia, and assign the genus Liupanshania to the subfamily Cyproidinae in the family Notodromadidae.^[10]

Thecostracans

Thecostracan research

Gale & Sadorf (2025) report the discovery of fossil material of Verruca stroemia from the Pliocene strata of the Yorktown Formation (North Carolina, United States), and interpret purported extinct species V. alaskana and V. koikei as junior synonyms of V. stroemia.^[11]

Insects

Trilobites

Trilobite research

Crônier, Couette & Laffont (2025) compare the utility of 2D and 3D quantitative analyses for the studies of morphological diversity of phacopid trilobites.^[12]

Other arthropods

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Tardisia^[13]	Gen. et sp. nov	Valid	McCoy et al.	Upper Carboniferous (Moscovian)	Mazon Creek fossil beds	United States ( Illinois)	A probable late surviving member of the Vicissicaudata within Artiopoda. The type species is T. broedeae

References

^ ^a ^b Dunlop, J. A.; Bartel, C. (2025). "A new species of fossil Phrynus Lamarck, 1801, from Dominican Republic amber (Amblypygi: Phrynidae)". Zootaxa. 5563 (1): 64–72. doi:10.11646/zootaxa.5563.1.7.
^ ^a ^b Kolesnikov, V. B.; Vorontsov, D. D.; Norton, R. A.; Klimov, P. B. (2025). "First fossil evidence of pediculochelid mites: two new species from Middle Cretaceous and Late Eocene amber revealing morphological stasis over at least 99 million years". Acarologia. 65 (1): 67–90. doi:10.24349/uxz4-s4sq.
^ Lourenço, W. R.; Velten, J. (2025). "A new species for the genus Archaeoananteroides Lourenço, 2016, fossil scorpion from Burmite (Scorpiones: Buthoidea: Ananteridae)". Faunitaxys. 13 (3): 1–6. doi:10.57800/faunitaxys-13(03).
^ Lourenço, W. R.; Velten, J. (2025). "One more new species for the genus Cretaceoushormiops Lourenço, 2018 from Cretaceous Burmite (Scorpiones: Protoischnuridae)". Faunitaxys. 13 (2): 1–6. doi:10.57800/faunitaxys-13(02).
^ Xuan, Q.; Cai, C.; Huang, Y.; Huang, D. (2025). "First Mesozoic scorpion from China and its ecological implications". Science Bulletin. doi:10.1016/j.scib.2025.01.035.
^ Xuan, Q.; Prendini, L.; Engel, M. S.; Cai, C.; Huang, D. (2025). "Extinct scorpion family Chaerilobuthidae from Mid-Cretaceous Burmese amber reinterpreted as subfamily of extant family Pseudochactidae (Chelicerata: Scorpiones)". Zoological Journal of the Linnean Society. 203 (1). zlae169. doi:10.1093/zoolinnean/zlae169.
^ Wallaard, J. J. W. (2025). "Mioapseudes mediterraneus n. gen. et n. sp. (Crustacea, Tanaidacea, Apseudidae), the first Miocene tanaidacean from Cyprus". Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen. 313 (2): 189–195. doi:10.1127/njgpa/2025/1229.
^ ^a ^b ^c ^d ^e ^f ^g ^h Sciuto, F.; Baldanza, A.; Reitano, A. (2025). "Ostracods taxonomic study and other faunistic record from Costa Bausa (Buccheri, Southeastern Sicily)". Revue de Micropaléontologie. 100830. doi:10.1016/j.revmic.2024.100830.
^ ^a ^b ^c Mahalakshmi, T.; Kumari, M.; Muduli, G. P. (2025). "Kimmeridgian (Upper Jurassic) Ostracodes from the Jhuran Formation, Mainland Kachchh, Gujarat, India". Paleontological Journal. 58 (11): 1216–1225. doi:10.1134/S0031030124601087.
^ Wang, Y.; Choi, B.-D.; Smith, R. J.; Wu, D. (2025). "Application of Ostracoda from the Lower Cretaceous Liupanshan Group at Pingliang (NW China) – Biostratigraphy and palaeoecology". Cretaceous Research. 106079. doi:10.1016/j.cretres.2025.106079.
^ Gale, A. S.; Sadorf, E. (2025). "Pliocene distribution of the cirripede Verruca stroemia (O.F. Müller, 1776) and revised definitions of the verrucid genera Verruca, Metaverruca and Priscoverruca (Thoracica, Crustacea)". Acta Geologica Polonica. 75 (1). e39. doi:10.24425/agp.2024.152661.
^ Crônier, C.; Couette, S.; Laffont, R. (2025). "Is 3D, a more accurate quantitative method than 2D, crucial for analyzing disparity patterns in extinct marine arthropods (Trilobita)?". Paleobiology: 1–19. doi:10.1017/pab.2024.44.
^ McCoy, Victoria E.; Herrera, Fabiany; Wittry, Jack; Mayer, Paul; Lamsdell, James C. (2025). "A possible vicissicaudatan arthropod from the Late Carboniferous Mazon Creek Lagerstätte". Geological Magazine. 162: e3. doi:10.1017/S001675682400044X. ISSN 0016-7568.

[Zootaxa55631-1] Dunlop, J. A.; Bartel, C. (2025). "A new species of fossil Phrynus Lamarck, 1801, from Dominican Republic amber (Amblypygi: Phrynidae)". Zootaxa. 5563 (1): 64–72. doi:10.11646/zootaxa.5563.1.7.

[Acarologia651Kolesnikovetal-2] Kolesnikov, V. B.; Vorontsov, D. D.; Norton, R. A.; Klimov, P. B. (2025). "First fossil evidence of pediculochelid mites: two new species from Middle Cretaceous and Late Eocene amber revealing morphological stasis over at least 99 million years". Acarologia. 65 (1): 67–90. doi:10.24349/uxz4-s4sq.

[3] Lourenço, W. R.; Velten, J. (2025). "A new species for the genus Archaeoananteroides Lourenço, 2016, fossil scorpion from Burmite (Scorpiones: Buthoidea: Ananteridae)". Faunitaxys. 13 (3): 1–6. doi:10.57800/faunitaxys-13(03).

[4] Lourenço, W. R.; Velten, J. (2025). "One more new species for the genus Cretaceoushormiops Lourenço, 2018 from Cretaceous Burmite (Scorpiones: Protoischnuridae)". Faunitaxys. 13 (2): 1–6. doi:10.57800/faunitaxys-13(02).

[5] Xuan, Q.; Cai, C.; Huang, Y.; Huang, D. (2025). "First Mesozoic scorpion from China and its ecological implications". Science Bulletin. doi:10.1016/j.scib.2025.01.035.

[6] Xuan, Q.; Prendini, L.; Engel, M. S.; Cai, C.; Huang, D. (2025). "Extinct scorpion family Chaerilobuthidae from Mid-Cretaceous Burmese amber reinterpreted as subfamily of extant family Pseudochactidae (Chelicerata: Scorpiones)". Zoological Journal of the Linnean Society. 203 (1). zlae169. doi:10.1093/zoolinnean/zlae169.

[7] Wallaard, J. J. W. (2025). "Mioapseudes mediterraneus n. gen. et n. sp. (Crustacea, Tanaidacea, Apseudidae), the first Miocene tanaidacean from Cyprus". Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen. 313 (2): 189–195. doi:10.1127/njgpa/2025/1229.

[CostaBausaostracods-8] ^ ^a ^b ^c ^d ^e ^f ^g ^h Sciuto, F.; Baldanza, A.; Reitano, A. (2025). "Ostracods taxonomic study and other faunistic record from Costa Bausa (Buccheri, Southeastern Sicily)". Revue de Micropaléontologie. 100830. doi:10.1016/j.revmic.2024.100830.

[PJ5811ostracods-9] Mahalakshmi, T.; Kumari, M.; Muduli, G. P. (2025). "Kimmeridgian (Upper Jurassic) Ostracodes from the Jhuran Formation, Mainland Kachchh, Gujarat, India". Paleontological Journal. 58 (11): 1216–1225. doi:10.1134/S0031030124601087.

[10] Wang, Y.; Choi, B.-D.; Smith, R. J.; Wu, D. (2025). "Application of Ostracoda from the Lower Cretaceous Liupanshan Group at Pingliang (NW China) – Biostratigraphy and palaeoecology". Cretaceous Research. 106079. doi:10.1016/j.cretres.2025.106079.

[11] Gale, A. S.; Sadorf, E. (2025). "Pliocene distribution of the cirripede Verruca stroemia (O.F. Müller, 1776) and revised definitions of the verrucid genera Verruca, Metaverruca and Priscoverruca (Thoracica, Crustacea)". Acta Geologica Polonica. 75 (1). e39. doi:10.24425/agp.2024.152661.

[12] Crônier, C.; Couette, S.; Laffont, R. (2025). "Is 3D, a more accurate quantitative method than 2D, crucial for analyzing disparity patterns in extinct marine arthropods (Trilobita)?". Paleobiology: 1–19. doi:10.1017/pab.2024.44.

[13] McCoy, Victoria E.; Herrera, Fabiany; Wittry, Jack; Mayer, Paul; Lamsdell, James C. (2025). "A possible vicissicaudatan arthropod from the Late Carboniferous Mazon Creek Lagerstätte". Geological Magazine. 162: e3. doi:10.1017/S001675682400044X. ISSN 0016-7568.

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