2025 in arthropod paleontology
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.
List of years in arthropod paleontology |
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Chelicerates
Arachnids
Amblypygi
Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Image |
---|---|---|---|---|---|---|---|---|
Phrynus luisdearmasi[1] |
Sp. nov |
Valid |
Dunlop & Bartel |
Miocene (probably Burdigalian) |
A species of Phrynus. |
|||
Phrynus poinari[1] |
Nom. nov |
Valid |
Dunlop & Bartel |
Miocene |
A species of Phrynus; a replacement name for Phrynus mexicana Poinar & Brown (2004). |
Pseudoscorpiones
Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Image |
---|---|---|---|---|---|---|---|---|
Lechytia finniae[2] |
Sp. nov |
Hagen et al. |
Late Cretaceous (Cenomanian) |
Kachin amber |
A species of Lechytia. |
Sarcoptiformes
Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Image |
---|---|---|---|---|---|---|---|---|
Histiogaster altilis[3] |
Sp. nov |
Valid |
Kolesnikov et al. |
A species of Histiogaster. |
||||
Paralycus ekaterinae[4] |
Sp. nov |
Valid |
Kolesnikov et al. |
Eocene (Priabonian) |
Rovno amber |
A member of Oribatida belonging to the family Pediculochelidae. |
||
Paralycus primus[4] |
Sp. nov |
Valid |
Kolesnikov et al. |
Kachin amber |
A member of Oribatida belonging to the family Pediculochelidae. |
|||
Plesioglyphus[5] |
Gen. et sp. nov |
Valid |
Sendi et al. |
A member of the family Schizoglyphidae. The type species is P. lebanotermi. |
Sarcoptiform research
- Klimov et al. (2025) revise Protospeleorchestes pseudoprotacarus, Paraprotacarus hirsti and Palaeotydeus devonicus from the Devonian Rhynie chert (United Kingdom) and interpret them all as junior synonyms of Protacarus crani, assigned by the authors to the new family Protoacaridae within Endeostigmata; the authors also study the diversification timeline of acariform mites, and argue that the crown group of Acariformes originated during the Cambrian, at the time of colonization of lands by bryophytes.[6]
Scorpiones
Name | Novelty | Status | Authors | Age | Type locality | Location | Notes | Image |
---|---|---|---|---|---|---|---|---|
Archaeoananteroides carusoi[7] |
Sp. nov |
Valid |
Lourenço in Lourenço & Velten |
Cretaceous |
Kachin amber |
A scorpion belonging to the superfamily Buthoidea and the family Ananteridae. |
||
Sp. nov |
Valid |
Lourenço, Dan & Zawgyi |
Cretaceous |
Kachin amber |
A scorpion belonging to the family Palaeoeuscorpiidae. |
|||
Cretaceoushormiops petersi[9] |
Sp. nov |
Valid |
Lourenço in Lourenço & Velten |
Cretaceous |
Kachin amber |
A scorpion belonging to the family Protoischnuridae. |
||
Jeholia[10] |
Gen. et sp. nov |
Valid |
Xuan et al. |
A member of Buthida of uncertain affinities. The type species is J. longchengi. |
||||
Paratrilineatus[11] |
Gen. et sp. nov |
Valid |
Lourenço in Lourenço & Velten |
Cretaceous |
Kachin amber |
A scorpion belonging to the superfamily Buthoidea and the family Palaeotrilineatidae. The type species is P. schmidti. |
||
Serratochaerilobuthus barbarae[12] |
Sp. nov |
Valid |
Lourenço & Velten |
Cretaceous |
Kachin amber |
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.[13]
Trombidiformes
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Caeculus aeternus[14] |
Sp. nov |
Porta et al. |
Eocene |
Baltic amber |
Europe (Baltic Sea region) |
A member of the family Caeculidae. |
Trombidiform research
- New caeculid specimens, including the first fossil caeculid larva, are described from the Cretaceous Kachin amber from Myanmar by Gerbe et al. (2025).[15]
Uropygi
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Mesothelyphonus xiaoae[16] |
Sp. nov |
Wu et al. |
Cretaceous |
Kachin amber |
A whip scorpion. |
Eurypterids
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Athenepterus[17] |
Gen. et comb. nov |
Valid |
Lamsdell |
Silurian (Přídolí) |
A member of the family Hardieopteridae. The type species is "Eurypterus" megalops Salter (1859); genus also includes A. sigmoidalis (Kjellesvig-Waering, 1971). |
|||
Barusopterus[17] |
Gen. et comb. nov |
Valid |
Lamsdell |
Silurian (Ludlow) |
A member of Dolichopteroidea belonging to the family Strobilopteridae. The type species is "Onychopterus" limuloides Kjellesvig-Waering (1948). |
|||
Cruinnopterus[17] |
Gen. et comb. nov |
Valid |
Lamsdell |
Silurian (Llandovery–Wenlock) |
A member of the family Carcinosomatidae. The type species is "Eurypterus" scorpioides Woodward (1868); genus also includes C. scotica (Laurie, 1899). |
|||
Hunanopterus[17] |
Fam. et gen. et comb. nov |
Valid |
Lamsdell |
Silurian (Llandovery–Přídolí) |
A member of the superfamily Pterygotoidea, the type genus of the new family Hunanopteridae. The type species is "Hughmilleria" wangi Tetlie, Selden & Ren (2007). |
|||
Selkiepterella[17] |
Gen. et comb. nov |
Valid |
Lamsdell |
Silurian (Llandovery–Přídolí) |
A member of the family Adelophthalmidae. The type species is "Himantopterus" lanceolata Salter (1856); genus also includes S. cephalaspis (Salter in Sedgwick and McCoy, 1855). |
|||
Tigrisopterus[18] |
Gen. et sp. nov |
Wang, Sun & Zhang |
Devonian (Lochkovian) |
Nagaoling Formation |
A member of the family Carcinosomatidae. The type species is T. zengi. |
|||
Waterstonopterus[17] |
Gen. et comb. nov |
Valid |
Lamsdell |
Silurian (Llandovery–Wenlock) |
A member of the family Hardieopteridae. The type species is "Hardieopterus" lanarkensis Waterston (1979); genus also includes W. myops (Clarke, 1907). |
Xiphosurans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Ciurcalimulus[19] |
Gen. et sp. nov |
Valid |
Lamsdell |
The type species is C. discobolus. |
||||
Sp. nov |
Lamsdell et al. |
Bears an unusually elongated shovel-shaped prosoma with recurved spines. |
Xiphosuran research
- Evidence indicating that fusion of the opisthosomal segments happened once in the common ancestor to Xiphosura, while loss of visible segment boundaries happened several times during the xiphosuran evolution, is presented by Lamsdell & Ocon (2025).[21]
Other chelicerates
Other chelicerate research
- Lustri et al. (2025) propose that chelicerates belonging to the family Offacolidae were suspension feeders.[22]
Crustaceans
Malacostracans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Alpheus indicus[23] |
Sp. nov |
Valid |
Amal, Kapur & Prasanna |
Miocene (Burdigalian) |
A species of Alpheus. |
|||
Aridelocaris[24] |
Gen. et sp. nov |
Schweitzer & Schram |
Carboniferous (Tournaisian) |
A member of Phyllocarida belonging to the family Sairocarididae. The type species is A. ohioensis. |
||||
Sp. nov |
Valid |
Gašparič et al. |
Early Cretaceous (Aptian or Albian) |
A hermit crab belonging to the family Pylochelidae. |
||||
Dysopodus[26] |
Gen. et sp. nov |
Valid |
Schädel et al. |
Early Cretaceous (Barremian) |
An isopod belonging to the group Cymothoida. The type species is D. gezei. |
|||
Grimothea nishioi[27] |
Comb. nov |
Valid |
(Karasawa) |
Miocene |
A species of Grimothea; moved from Munida nishioi Karasawa (1993). |
|||
Grimothea ogaensis[27] |
Comb. nov |
Valid |
(Hatai & Kotaka) |
Miocene |
A species of Grimothea; moved from Kazuoia ogaensis Hatai & Kotaka (1970). |
|||
Karumballichirus khadroensis[28] |
Comb. nov |
Valid |
(Hyžný & Charbonnier in Hyžný et al.) |
Paleocene (Danian) |
Khadro Formation |
A member of Axiidea belonging to the family Callichiridae; moved from Neocallichirus khadroensis Hyžný & Charbonnier in Hyžný et al. (2016). |
||
Karumballichirus lakhraensis[28] |
Comb. nov |
Valid |
(Hyžný & Charbonnier in Hyžný et al.) |
Paleocene (Thanetian)?–Eocene (Ypresian) |
Lakhra Formation |
A member of Axiidea belonging to the family Callichiridae; moved from Neocallichirus lakhraensis Hyžný & Charbonnier in Hyžný et al. (2016). |
||
Karumballichirus maximus[28] |
Comb. nov |
Valid |
(Milne-Edwards) |
Holocene |
A member of Axiidea belonging to the family Callichiridae; moved from Callianassa maxima Milne-Edwards (1870). |
|||
Mioapseudes[29] |
Gen. et sp. nov |
Valid |
Wallaard |
Miocene |
A tanaidacean. The type species is M. mediterraneus. |
|||
Nahecaris carlsi[30] |
Sp. nov |
Zamora et al. |
Devonian (Pragian) |
Santa Cruz Formation |
A member of Phyllocarida belonging to the family Rhinocarididae. |
|||
Oncopareia californiana[31] |
Sp. nov |
Valid |
Garassino, Pasini & Nyborg |
A lobster. |
||||
Pelorophontes[32] |
Gen. et sp. nov |
Schweitzer & Schram |
Carboniferous (Moscovian) |
A member of the family Gorgonophontidae. The type species is P. mayi. |
||||
Pseudoplakolana[26] |
Gen. et comb. nov |
Valid |
Schädel et al. |
Early Cretaceous (Aptian) |
An isopod belonging to the group Cymothoida. The type species is "Plakolana" chiapaneca Bruce et al. (2021). |
|||
Rodneyellus[33] |
Gen. et sp. nov |
Valid |
Lima et al. |
Pirabas Formation |
A crab belonging to the family Hexapodidae. Genus includes new species R. feldmanni. |
|||
Serraranina[34] |
Gen. et sp. nov |
Valid |
Van Bakel, Fraaije & Jagt |
Paleocene (Danian) |
A raninid crab. Genus includes new species S. stefanpolkowskyi. |
|||
Synoriacarcinus[35] |
Gen. et comb. nov |
Valid |
Schweitzer, Feldmann & Findling |
A crab belonging to the family Ibericancridae. The type species is "Diaulax" millerae Bishop (1992); genus also includes "Seorsus" kauffmani Feldmann et al. (2013) from the Mancos Shale (New Mexico, United States). |
||||
Trapezionida chiyoensis[27] |
Sp. nov |
Valid |
Karasawa & Kato |
Miocene |
A species of Trapezionida. |
Malacostracan research
- Bicknell et al. (2025) study two clusters of Archaeoniscus brodiei from the Berriasian Durlston Formation (United Kingdom), providing new information on the anatomy of the studied isopod.[36]
- New information on the morphology of Beurlenia araripensis is provided by Lima et al. (2025).[37]
- Mychko (2025) describes fossil material of Palaeastacus aff. solitarius from the Tithonian strata from the Cheryomukha River Basin (Yaroslavl Oblast, Russia), extending known geographical range of Late Jurassic members of the genus Palaeastacus.[38]
- A study on the distribution and diversity of members of the family Glypheidae throughout their evolutionary history is published by Damborenea et al. (2025).[39]
- Worthy et al. (2025) identify fossil material (molar ridges of the mandible) of at least three taxa of parastacids from the Miocene Bannockburn Formation (New Zealand), providing evidence of greater diversity of parastacids in New Zealand in the Miocene compared to the present.[40]
- Baucon et al. (2025) report the discovery of vertical burrows from a new Carnian site from the Travenanzes Formation (Italy), possibly representing the oldest fossil evidence of true crabs reported to date.[41]
- Mychko, Schweitzer & Feldmann (2025) describe fossil material of Gastrosacus wetzleri and Goniodromites aliquantulus from Oxfordian reef limestones of the North Caucasus (Russia), expanding known geographical range of both taxa.[42]
Ostracods
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Aparchitellina lenis[43] |
Sp. nov |
Valid |
Sobolev |
Devonian |
Yba Formation |
|||
Aparchitellina reticulata[43] |
Sp. nov |
Valid |
Sobolev |
Devonian |
Yba Formation |
|||
Aurila costabausaensis[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
||||||
Aurila daphnidis[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
|||||
Aurila mazzarinoensis[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
|||||
Aurila sanctiandreae[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
|||||
Baltonotella erugospinosa[45] |
Sp. nov |
Valid |
Mcgairy et al. |
Ordovician (Katian) |
Phu Ngu Formation |
A member of Podocopa belonging to the order Beyrichiocopida and the family Aparchitididae. |
||
Bizonidea[46] |
Gen. et comb. nov |
Valid |
Franz, Tesakova & Schweigert |
Jurassic |
Genus includes "Progonocythere" gublerae Bizon (1958). |
|||
Chimaerabinoda[45] |
Gen. et sp. nov |
Valid |
Mcgairy et al. |
Ordovician (Katian) |
Phu Ngu Formation |
A member of Podocopa belonging to the order Beyrichiocopida and the family Aechminidae. The type species is C. reticulofimbriata. |
||
Collibolbina corrugata[45] |
Sp. nov |
Valid |
Mcgairy et al. |
Ordovician (Katian) |
Phu Ngu Formation |
A member of Podocopa belonging to the order Beyrichiocopida and the family Tetradellidae. |
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Cyclocypris bamba[47] |
Sp. nov |
Díez-Somolinos et al. |
Early Cretaceous (Barremian) |
A species of Cyclocypris. |
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Cypridea marihoni[47] |
Sp. nov |
Díez-Somolinos et al. |
Early Cretaceous (Barremian) |
A member of Cypridoidea belonging to the family Cyprideidae. |
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Cypridea vatra[47] |
Sp. nov |
Díez-Somolinos et al. |
Early Cretaceous (Barremian) |
A member of Cypridoidea belonging to the family Cyprideidae. |
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Cytheretta buccheriensis[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
|||||
Glyptocythere pseudotuberosa[48] |
Nom. nov |
Valid |
Tesakova |
A replacement name for Glyptocythere tuberosa Brand & Malz (1962). |
||||
Hiatobairdia peggy[49] |
Sp. nov |
Forel |
Late Triassic (Carnian) |
|||||
Judahella leii[50] |
Sp. nov |
Forel et al. |
Middle Triassic |
|||||
Laterophores arrisoris[45] |
Sp. nov |
Valid |
Mcgairy et al. |
Ordovician (Katian) |
Phu Ngu Formation |
A member of Podocopa belonging to the order Beyrichiocopida and the family Bolliidae. |
||
Laterophores reticulatus[45] |
Sp. nov |
Valid |
Mcgairy et al. |
Ordovician (Katian) |
Phu Ngu Formation |
A member of Podocopa belonging to the order Beyrichiocopida and the family Bolliidae. |
||
Lophocythere? jhuranensis[51] |
Sp. nov |
Valid |
Kumari & Mahalakshmi in Mahalakshmi, Kumari & Muduli |
Jhuran Formation |
Published online in 2025, but the issue date is listed as December 2024. |
|||
Lophocythere mosaica[52] |
Sp. nov |
Valid |
Shurupova |
Middle Jurassic (Callovian) |
||||
Lophocythere tuberculata[52] |
Sp. nov |
Valid |
Shurupova |
Middle Jurassic (Callovian) |
||||
Macrodentina jaduraensis[51] |
Sp. nov |
Valid |
Kumari & Mahalakshmi in Mahalakshmi, Kumari & Muduli |
Late Jurassic (Kimmeridgian) |
Jhuran Formation |
Published online in 2025, but the issue date is listed as December 2024. |
||
Mongolocypris shai[53] |
Sp. nov |
Valid |
Wang |
Early Cretaceous |
Xiaonangou Formation |
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Neurocythere margaritae[54] |
Sp. nov |
Valid |
Tesakova |
Middle Jurassic (Callovian) |
||||
Neurocythere parva[54] |
Sp. nov |
Valid |
Tesakova |
Middle Jurassic (Callovian) |
||||
Ordovizona? constricta[45] |
Sp. nov |
Valid |
Mcgairy et al. |
Ordovician (Katian) |
Phu Ngu Formation |
A member of Podocopa belonging to the order Beyrichiocopida and the family Ordovizonidae. |
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Patellacythere lineata[51] |
Sp. nov |
Valid |
Kumari & Mahalakshmi in Mahalakshmi, Kumari & Muduli |
Late Jurassic (Kimmeridgian) |
Jhuran Formation |
Published online in 2025, but the issue date is listed as December 2024. |
||
Pattersoncypris labiata[55] |
Sp. nov |
Maia et al. |
Cretaceous |
A member of the family Cyprididae. |
||||
Perissocytheridea (Kroemmelbeinella) hiblaea[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
|||||
Reconcavona grandiensis[56] |
Comb. nov |
Valid |
(Tomé, Lima Filho & Neumann) |
Early Cretaceous |
Araripe Basin |
A member of the family Paracyprididae; moved from Damonella grandiensis Tomé, Lima Filho & Neumann (2014). |
||
Tenedocythere forticostata[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
|||||
Terquemula pseudoflexicosta[54] |
Sp. nov |
Valid |
Tesakova |
Middle Jurassic (Callovian) |
||||
Verrucocythereis verrucomurata[44] |
Sp. nov |
Sciuto, Baldanza & Reitano |
Pliocene |
Ostracod research
- Evidence from the study of Silurian ostracod assemblages from the eastern Baltic Basin (Lithuania), indicating that the mid-Homerian biotic turnover event most likely lasted approximately 260,000 years (and thus was shorter than indicated by earlier estimates), is presented by Rinkevičiūtė et al. (2025).[57]
- 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.[58]
- A study on the composition and biogeographical connections of ostracod assemblages from the Paleocene-Eocene sedimentary succession at Wadi Tarfa (Egypt) is published by Samir et al. (2025).[59]
Thecostracans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Alabamalepas[60] |
Gen. et sp. nov |
Perreault, Collareta & Buckeridge |
Oligocene |
A barnacle belonging to the family Platylepadidae. Genus includes new species A. cookei. |
||||
Sp. nov |
Valid |
Karasawa & Kobayashi |
Early-Middle Miocene (Burdigalian)-(Langhian) |
Toyama Formation, Iwamura Groupp; Akeyo and Oidawara formations, Mizunami Group |
A member of the family Balanidae. |
|||
Bognorscalpellum[62] |
Gen. et comb. nov |
Valid |
Gale |
Eocene |
A barnacle. The type species is "Mitella" venablesi Withers (1953); genus also includes "Mitella" daviesi Withers (1953). |
|||
Lacrymascalpellum[62] |
Gen. et comb. nov |
Valid |
Gale |
Miocene to Pleistocene |
Austria |
A barnacle. The type species is "Scalpellum" burdigalense Des Moulins (1875); genus also includes "Scalpellum" magnum Darwin (1851), "Scalpellum" dalpiazi Withers (1953), "Scalpellum" molinianum Seguenza (1876), "Scalpellum" lovisatoi De Alessandri (1895), "Scalpellum" studeri Tièche (1905), "Scalpellum" moraviense Withers (1953) and "Scalpellum" sigmoideum Withers (1953). |
||
Laeviscalpellum[62] |
Gen. et comb. nov |
Valid |
Gale |
Cretaceous |
A barnacle. The type species is "Virgiscalpellum" laevis Gale (2020); genus also includes "Virgiscalpellum" rugosum Gale (2020). |
|||
Sp. nov |
Valid |
Karasawa & Kobayashi |
Early Miocene (Burdigalian) |
Akeyo Formation, Mizunami Group |
A member of the family Lepadidae. |
|||
Sp. nov |
Valid |
Karasawa & Kobayashi |
Early-Middle Miocene (Burdigalian)- (Langhian) |
Akeyo and Oidawara formations, Mizunami Group |
A member of the family Balanidae. |
|||
Proverruca cenomanica[62] |
Sp. nov |
Valid |
Gale |
Late Cretaceous |
A barnacle. |
|||
Proverruca minuta[62] |
Sp. nov |
Valid |
Gale |
A barnacle. |
||||
Proverruca ornata[63] |
Sp. nov |
Valid |
Gale & Jagt |
Late Cretaceous (Campanian) |
Gulpen Formation |
A barnacle. |
||
Solidobalanus hataii[61] |
Sp. nov |
Valid |
Karasawa & Kobayashi |
Early-Middle Miocene (Burdigalian)-(Langhian) |
Akeyo and Oidawara formations, Mizunami Group |
A member of the family Balanidae. |
||
Solidoscalpellum[62] |
Gen. et comb. nov |
Valid |
Gale |
Cretaceous |
A scalpellid barnacle. The type species is "Scalpellum maximum" var. cylindraceum Darwin (1851); genus also includes "Arcoscalpellum maximum" var. triminghamensis Withers (1935) and "Cretiscalpellum" sharapovi Alekseev (2009). |
|||
Striascalpellum harnhamensis[62] |
Sp. nov |
Valid |
Gale |
A barnacle. |
||||
Tetraclitella mizunamiensis[61] |
Sp. nov |
Valid |
Karasawa & Kobayashi |
Early Miocene (Burdigalian) |
Akeyo Formation, Mizunami Group |
A member of the family Tetraclitidae. |
||
Tetraclitella tokiensis[61] |
Sp. nov |
Valid |
Karasawa & Kobayashi |
Early Miocene (Burdigalian) |
Akeyo Formation, Mizunami Group |
A member of the family Tetraclitidae. |
||
Tetrinis schooni[64] |
Sp. nov |
Buckeridge & Smith |
Early Cretaceous (Albian) |
A barnacle belonging to the group Scalpellomorpha and the family Zeugmatolepadidae. | ||||
Titanolepas curvatus[62] |
Sp. nov |
Valid |
Gale |
A barnacle. |
||||
Virgilepas angulosum[62] |
Sp. nov |
Valid |
Gale |
A barnacle. |
||||
Virgiscalpellum brydonei[62] |
Sp. nov |
Valid |
Gale |
A barnacle. |
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.[65]
Other crustaceans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Mychko, Alekseev & Schweitzer |
Carboniferous (Gzhelian)–Permian (Asselian) |
A member of Cyclida. |
||||
Palaeolimnadia stevenbeckeri[67] |
Sp. nov |
Valid |
Poschmann et al. |
Devonian (Emsian) |
A clam shrimp belonging to the family Paleolimnadiidae. |
|||
Polygrapta dazuensis[68] |
Comb. nov |
(Chen) |
Late Triassic |
Xujiahe Formation |
A clam shrimp belonging to the family Polygraptidae; moved from Euestheria dazuensis Chen (1974) |
|||
Polygrapta yipinglangensis[68] |
Comb. nov |
Valid |
(Chen) |
Late Triassic |
Ganghaizi Formation |
A clam shrimp belonging to the family Polygraptidae; moved from Euestheria yipinglangensis Chen (1974) |
||
Uralocyclus feldmanni[66] |
Sp. nov |
Valid |
Mychko, Alekseev & Schweitzer |
Carboniferous (Viséan or Serpukhovian) |
A member of Cyclida. |
Other crustacean research
- Bicknell et al. (2025) describe an assemblage of 50 specimens of Schramine montanaensis from the Carboniferous Bear Gulch Limestone (Montana, United States), representing one of oldest records of gregarious behavior of crustaceans reported to date.[69]
Insects
Radiodonts
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
Valid |
Moysiuk and Caron |
Cambrian (Wuliuan) |
A member of the family Hurdiidae, likely sister to all other genera within the clade. The type species is M. fentoni. |
Radiodont research
- Evidence from the study of new fossil material of Caryosyntrips from the Cambrian strata of the Hongjiangshao Formation (China) and Spence Shale (Utah, United States), interpreted as indicating that characters used to diagnose species belonging to this genus might instead reflect variation within the same species, is presented by Yang et al. (2025).[71]
- Luo et al. (2025) describe fossil material of Ursulinacaris cf. U. grallae from the Miaolingian strata of the Kaili Formation (China), expanding known geographical range of members of the genus Ursulinacaris.[72]
Trilobites
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Amphoton bicknelli[73] |
Sp. nov |
Valid |
Smith et al. |
Cambrian (Miaolingian) |
Tasman Formation |
A member of the family Dolichometopidae. |
||
Sp. nov |
Geyer & Landing |
Cambrian |
||||||
"Balticoglaucus" avalonensis[75] |
Sp. nov |
Valid |
Westrop & Landing |
Cambrian (Drumian) |
A member of the family Solenopleuridae. |
|||
Sp. nov |
Valid |
Wei et al. |
Ordovician-Silurian transition |
|||||
Ciliscutellum rhaxerosides[76] |
Sp. nov |
Valid |
Wei et al. |
Ordovician-Silurian transition |
||||
Cyrtosymboloides koenigshofi[77] |
Sp. nov |
Valid |
Flick |
Devonian |
Hermershausen Limestone |
|||
Ibexocephala[78] |
Gen. et 2 sp. nov |
Valid |
Adrain |
Ordovician (Tremadocian) |
A member of the family Bathyuridae. The type species is I. lossoae; genus also includes I. dekosterae from the Fillmore Formation (Utah, United States). |
|||
Imighzeria[74] |
Gen. et sp. nov |
Geyer & Landing |
Cambrian |
Genus includes new species I. silena. |
||||
"Jincella" arenata[75] |
Sp. nov |
Valid |
Westrop & Landing |
Cambrian (Drumian) |
Manuels River Formation |
A member of the family Solenopleuridae. |
||
Kayseraspis rugosa[79] |
Sp. nov |
Valid |
Ghobadi Pour |
Ordovician (Tremadocian) |
||||
Kettneraspis dickinsoni[80] |
Sp. nov |
Valid |
Van Viersen, Lerouge & Kesselaer |
Devonian (Pragian) |
Ihandar Formation |
A member of the family Odontopleuridae. |
||
Sp. nov |
Valid |
Van Viersen, Lerouge & Kesselaer |
Devonian (Pragian) |
Ihandar Formation |
A member of the family Odontopleuridae. |
|||
Sp. nov |
Valid |
Van Viersen, Lerouge & Kesselaer |
Devonian (Pragian) |
Ihandar Formation |
A member of the family Odontopleuridae. |
|||
Licnocephala bradleyi[78] |
Sp. nov |
Valid |
Adrain |
Ordovician (Tremadocian) |
Garden City Formation |
A member of the family Bathyuridae. |
||
Licnocephala ngi[78] |
Sp. nov |
Valid |
Adrain |
Ordovician (Tremadocian) |
Garden City Formation |
A member of the family Bathyuridae. |
||
Sp. nov |
Valid |
Wei et al. |
Ordovician-Silurian transition |
|||||
Onchonotellus arealis[81] |
Sp. nov |
Valid |
Makarova et al. |
Cambrian |
||||
Sp. nov |
Valid |
Mychko |
Permian (Changhsingian) |
Belalabino Group |
A member of the family Phillipsiidae. |
|||
Parasolenopleura siberica[81] |
Sp. nov |
Valid |
Makarova et al. |
Cambrian |
||||
Piriproetus ornatissimus nictans[77] |
Ssp. nov |
Valid |
Flick |
Devonian |
Hermershausen Limestone |
|||
Politicurus edwardsi[83] |
Sp. nov |
Valid |
Ng, Bradley & Adrain in Adrain et al. |
Ordovician (Tremadocian) |
A member of the family Hystricuridae. |
|||
Praepatokephalus housensis[83] |
Sp. nov |
Valid |
Adrain & Pérez-Peris in Adrain et al. |
Ordovician (Tremadocian) |
House Limestone |
A member of the family Remopleurididae. |
||
Pseudanomocarina falcata[81] |
Sp. nov |
Valid |
Makarova et al. |
Cambrian |
||||
Sinoencrinurus[76] |
Gen. et comb. nov |
Valid |
Wei et al. |
Ordovician-Silurian transition |
Lianfeng Formation |
The type species is "Encrinuroides" zhenxiongensis Sheng (1964); genus also includes "Niuchangella" meitanensis Zhang (1974), "Encrinuroides" yanheensis Yin in Yin & Lee (1978), "Encrinuroides" yichangensis Yi (1978) and "Encrinuroides" yinjiangensis Zhang (1974). |
||
Skullrockicurus[83] |
Gen. et sp. nov |
Valid |
Losso & Adrain in Adrain et al. |
Ordovician (Tremadocian) |
House Limestone |
A member of the family Dimeropygidae. The type species is S. plummeri. |
||
Sp. nov |
Valid |
Smith et al. |
Cambrian (Miaolingian) |
Tasman Formation |
A member of the family Solenopleuridae. |
|||
Toxotiformis tchopkiensis[81] |
Sp. nov |
Valid |
Makarova et al. |
Cambrian |
||||
Vicnepea bentleyi[73] |
Sp. nov |
Valid |
Smith et al. |
Cambrian (Miaolingian) |
Tasman Formation |
A member of the family Nepeidae. |
||
Yunnanoproetus[76] |
Gen. et sp. nov |
Valid |
Wei et al. |
Ordovician-Silurian transition |
The type species is Y. shanshuensis. |
Trilobite research
- Evidence of impact of changes in marine redox on the evolution of body size of Cambrian and Ordovician trilobites is presented by Sun et al. (2025).[84]
- A study on the phylogenetic relationships of cyclopygid trilobites is published by Braddy, Dale & Wang (2025).[85]
- Crônier, Couette & Laffont (2025) compare the utility of 2D and 3D quantitative analyses for the studies of morphological diversity of phacopid trilobites.[86]
- Zabini et al. (2025) identify fossil material of Mucronaspis sp. from the Ordovician Iapó Formation, representing the oldest record of a trilobite from Brazil reported to date.[87]
- A study on the modular organization of the trilobite head, as indicated by data from specimens of Ceraurus pleurexanthemus from the Ordovician (Sandbian) Glens Falls Limestone (New York, United States), is published by Vargas-Parra & Hopkins (2025).[88]
Other arthropods
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Ammagnostus minutus[81] |
Sp. nov |
Valid |
Makarova et al. |
Cambrian |
A member of Agnostida. |
|||
?Cotalagnostus novaezealandiae[73] |
Sp. nov |
Valid |
Smith et al. |
Cambrian (Miaolingian) |
Tasman Formation |
A member of Agnostida belonging to the family Spinagnostidae. |
||
Dabashanella? lunaiformis[89] |
Sp. nov |
Valid |
Peel |
Cambrian (Wuliuan) |
A member of Phosphatocopida belonging to the family Dabashanellidae. |
|||
Hypagnostus porterensis[75] |
Sp. nov |
Valid |
Westrop & Landing |
Cambrian (Drumian) |
Manuels River Formation |
A member of Agnostida. |
||
Gen. et sp. nov | Valid | Gabbott et al. | Ordovician | Soom Shale (Cedarberg Formation) | South Africa | An enigmatic euarthropod, the type species is K. susanae. | ||
Laeviglyphiulus[91] |
Gen. et sp. nov |
Valid |
Wesener & Rühr |
Cretaceous |
Kachin amber |
A millipede belonging to the family Cambalopsidae. The type species is L. patrickmuelleri. |
||
Sp. nov |
Valid |
Peel |
Cambrian (Wuliuan) |
Henson Gletscher Formation |
A member of Bradoriida belonging to the family Svealutidae. |
|||
Protosiphonorhinus[92] |
Gen. et sp. nov |
Valid |
Moritz, Wipfler & Wesener |
Cretaceous (Albian-Cenomanian) |
Kachin amber |
A millipede belonging to the family Siphonorhinidae. The type species is P. patrickmuelleri. |
||
Gen. et sp. nov |
Valid |
McCoy et al. |
Upper Carboniferous (Moscovian) |
( Illinois) |
A probable late surviving member of the Vicissicaudata within Artiopoda. The type species is T. broedeae |
|||
Tasagnostus simpsoni[73] |
Sp. nov |
Valid |
Smith et al. |
Cambrian (Miaolingian) |
Tasman Formation |
A member of Agnostida belonging to the family Diplagnostidae. |
||
Gen. et sp. nov |
Collantes & Pereira |
Soleras Formation |
A member of Agnostida belonging to the family Weymouthiidae. The type species is T. valverdi. |
- Collantes & Pates (2025) revise the holotype of Isoxys carbonelli and confirm placement of this species within the genus Isoxys.[95]
- Haridy et al. (2025) identify purported early vertebrate Anatolepis as an arthropod, and interpret its purported dentine tubules as sensory structures similar to those present in Cambrian aglaspidids and modern arthropods.[96]
- Evidence of the presence of two pairs of different compound eyes in Pygmaclypeatus daziensis (a pair of stalked, movable eyes and a pair of sessile dorsal eyes) is presented by Schmidt et al. (2025).[97]
- O'Flynn et al. (2025) describe new fossil material of Kuamaia lata from the Cambrian Chiungchussu Formation (China), providing new information on the frontal appendages and number of head segments in members of this species, and interpret the studied fossils as indicating that raptorial frontal appendages, ancestral for Euarthropoda but lost in Artiopoda, evolved secondarily within the artiopod lineage that included K. lata.[98]
- Redescription and a study on the affinities of Helmetia expansa is published by Losso, Caron & Ortega-Hernández (2025).[99]
- Bicknell et al. (2025) describe fossil material of Naraoia cf. bertiensis from the Silurian (Přídolí) Phelps Member of the Fiddlers Green Formation (Bertie Group; New York, United States), expanding known geographical range of the youngest naraoiids.[100]
- Naimark & Chaika (2025) study the structure of the cuticles of members of Agnostina, reporting evidence of greater similarity to cuticles of chelicerates than those of crustaceans.[101]
- Liu et al. (2025) present new information on the morphology of Primicaris, interpreted as supporting a stem-group mandibulate affinity for marrellomorphs.[102]
- Brookfield, Catlos & Garza (2025) argue that the strata of the Stonehaven Group (United Kingdom) preserving fossil material of Pneumodesmus newmani is most likely Přídolí–Lochkovian in age.[103]
- Dernov (2025) describes impressions of probable paratergites of Arthropleura sp. from the Carboniferous (Bashkirian) Mospyne Formation (Ukraine), possibly representing fossil material of juvenile specimens, and argues that juvenile and adult arthropleurids might have lived in different habitats.[104]
General research
- Chipman (2025) proposes a new model for the evolution of arthropod tagmata based on data from extant and fossil arthropods.[105]
- Naimark & Sizov (2025) study the taphonomy of the Cambrian arthropod fossils from the Kimiltei site (Irkutsk Oblast, Russia) first reported by Naimark, Sizov & Khubanov (2023),[106] and argue that the identification of putative members of Offacolidae and Chasmataspidida from this locality as chelicerates is correct.[107]
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{{cite journal}}
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