2023 in arthropod paleontology
2023 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 2023.
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Chelicerates
Arachnids
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Archaeocroton kaufmani[1] |
Sp. nov |
Valid |
Chitimia-Dobler, Mans & Dunlop in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A hard tick. Announced in 2022; the final article version was published in 2023. |
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Betaburmesebuthus fuscus[2] |
Sp. nov |
Valid |
Xuan, Cai & Huang |
Cretaceous |
Burmese amber |
A scorpion belonging to the family Palaeoburmesebuthidae. |
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Betaburmesebuthus villosus[2] |
Sp. nov |
Valid |
Xuan, Cai & Huang |
Cretaceous |
Burmese amber |
A scorpion belonging to the family Palaeoburmesebuthidae. |
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Bothriocroton muelleri[1] |
Sp. nov |
Valid |
Chitimia-Dobler, Mans & Dunlop in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A hard tick. Announced in 2022; the final article version was published in 2023. |
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Eognosippus[3] |
Gen. et sp. nov |
Valid |
Dunlop, Erdek & Bartel |
Eocene (Lutetian) |
Baltic amber |
Europe (Baltic Sea region, possibly Kaliningrad Oblast, Russia) |
A camel spider. The type species is E. fahrenheitiana. |
|
Promacrothele[4] |
Gen. et sp. nov |
Tang, Engel & Yang in Tang et al. |
Cretaceous |
Burmese amber |
A spider belonging to the family Macrothelidae. The type species is P. polyacantha. |
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Unguicheylus[5] |
Gen. et sp. nov |
Valid |
Khaustov, Vorontsov & Lindquist |
Cretaceous (Albian–Cenomanian) |
Taimyr amber |
A mite belonging to the new family Unguicheylidae, which might belong to the superfamily Anystoidea. The type species is U. quadriocellatus. |
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Uropodella hoffeinsorum[6] |
Sp. nov |
Valid |
Lindquist & Vorontsov |
Eocene |
Baltic amber |
A mite, a species of Uropodella. |
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Arachnid research
- A trigonotarbid arachnid specimen is described from the Carboniferous (Moscovian) Almazna Formation (Donetsk Oblast) by Dunlop & Dernov (2023), extending known distribution of trigonotarbids in Europe.[7]
- A study on the anatomy and affinities of Geralinura brittanica and Proschizomus petrunkevitchi is published by Garwood & Dunlop (2023), who reinterpret P. petrunkevitchi as a whip scorpion rather than a stem-schizomid.[8]
- The first known male specimen of Strotarchus paradoxus is described from the Miocene Mexican amber by García-Villafuerte & Ibarra-Núñez (2023).[9]
Eurypterids
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Archopterus[10] |
Gen et sp. nov |
Valid |
Wang et al. |
Ordovician |
Wenchang Formation |
Likely the oldest representative of the family Adelophthalmidae. The type species is A. anjiensis. |
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Xiphosurans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Xiphosuran research
- Klompmaker et al. (2023) describe a specimen of Limulitella bronnii from the Anisian Muschelkalk sediments of the Vossenveld Formation (Netherlands), extending known temporal range of this species, and provide the diagnosis of L. bronnii for the first time.[11]
Other chelicerates
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Crustaceans
Malacostracans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Sp. nov |
Valid |
De Mazancourt, Wappler & Wedmann |
Eocene |
Possibly a member of the family Palaemonidae. Announced in 2022; the correction including evidence of registration in ZooBank was published in 2023.[13] |
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Chronocancer[14] |
Gen. et sp. nov |
Valid |
Santana et al. |
Early Cretaceous (Aptian-Albian) |
A crab, probably a member of the family Orithopsidae. The type species is C. camilosantanai. Announced in 2022 in an online-only journal, and the publication did not include a ZooBank registration number;[15] validated in 2023. |
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Cretacocalcinus fortis[16] |
Sp. nov |
Ferratges & Zamora in García-Penas et al. |
Early Cretaceous |
Maestrazgo Basin |
A hermit crab. |
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Cugocaris[17] |
Gen. et sp. nov |
Valid |
Liu et al. |
Silurian |
Fentou Formation |
A member of Phyllocarida belonging to the group Archaeostraca. Genus includes new species C. future. |
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Dubiostenopus[18] |
Gen. et sp. nov |
Valid |
Alencar et al. |
Early Cretaceous (Aptian-Albian) |
A member of Stenopodidea of uncertain affinities. The type species is D. parvus. |
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Eobooralana[19] |
Gen. et comb. nov |
Schädel, Nagler & Hyžný |
Middle Jurassic (Callovian) |
An isopod belonging to the group Scutocoxifera. The type species is "Urda" rhodanica Van Straelen (1928). |
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Eomunidopsis kinokunica[20] |
Sp. nov |
Valid |
Karasawa, Ohara & Kato |
Early Cretaceous (Barremian) |
Arida Formation |
A member of the family Galatheidae. Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[20] |
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Sp. nov |
Valid |
Karasawa, Ohara & Kato |
Early Cretaceous (Barremian) |
Arida Formation |
Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[20] |
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Gladiocaris[21] |
Gen. et comb. nov |
Valid |
Garassino et al. |
Middle Triassic |
A member of the family Penaeidae. Genus includes "Antrimpos" germanicus Brandt & Schulz (2013) |
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Sp. nov |
Charbonnier, Garassino & López-Horgue |
Early Jurassic (Pliensbachian–Toarcian) |
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Gonatocaris wuhanensis[17] |
Sp. nov |
Valid |
Liu et al. |
Silurian |
Fentou Formation |
A member of Phyllocarida belonging to the group Archaeostraca. |
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Hepatus beurleni[23] |
Nom. nov |
Valid |
Lima et al. |
Miocene |
Pirabas Formation |
A species of Hepatus; a replacement name for Cyclocancer tuberculatus Beurlen (1958). |
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Sp. nov |
Valid |
Karasawa, Ohara & Kato |
Early Cretaceous (Barremian) |
Arida Formation |
Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[20] |
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Jaliscosphaera[24] |
Gen. et sp. nov |
García-Vázquez, Alvarado-Ortega & Vega |
An isopod belonging to the family Sphaeromatidae. The type species is J. pliocenica. |
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Laeviprosopon ewakrzeminskae[25] |
Sp. nov |
Valid |
Starzyk et al. |
Late Jurassic (Tithonian) |
A crab belonging to the family Homolidae. |
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Laeviprosopon joecollinsi[25] |
Sp. nov |
Valid |
Starzyk et al. |
Late Jurassic (Oxfordian) |
A crab belonging to the family Homolidae. |
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Laeviprosopon lanceatum[25] |
Sp. nov |
Valid |
Starzyk et al. |
Late Jurassic (Oxfordian) |
A crab belonging to the family Homolidae. |
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Litorepagurus[26] |
Gen. et sp. nov |
Valid |
Fraaije et al. |
Early Cretaceous (Albian) |
A hermit crab. Genus includes new species L. wissantensis. |
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Miohepatus amazonicus[23] |
Comb. nov |
Valid |
Lima et al. |
Miocene |
Pirabas Formation |
A crab belonging to the family Aethridae. Moved from Hepatella amazonica Beurlen (1958). The type species of the new genus Miohepatus, which also includes extant species Miohepatus peruvianus (originally Hepatella peruviana Rathbun, 1933) |
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Oregonina[27] |
Gen. et comb. nov |
Valid |
Nyborg, Garassino & Nyborg |
Eocene |
A crab belonging to the family Lyreididae. Genus includes "Macroacaena" leucosiae (Rathbun, 1932) |
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Ostenosculda[28] |
Gen. et sp. nov |
Valid |
Braig et al. |
Early Jurassic |
A mantis shrimp belonging to the group Unipeltata. The type species is O. teruzzii. |
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Paguristes timoni[29] |
Sp. nov |
Valid |
Wallaard et al. |
Miocene |
A hermit crab, a species of Paguristes. |
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Pagurus hazenorum[29] |
Sp. nov |
Valid |
Wallaard et al. |
Miocene |
St. Marys Formation |
A hermit crab, a species of Pagurus. |
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Palaega yamadai[20] |
Sp. nov |
Valid |
Karasawa, Ohara & Kato |
Early Cretaceous (Barremian) |
Arida Formation |
An isopod belonging to the family Cirolanidae. Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[20] |
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Palaeodromites pimientai[16] |
Sp. nov |
Ferratges & Zamora in García-Penas et al. |
Early Cretaceous |
Maestrazgo Basin |
A crab. |
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Pseudoglyphea anisica[30] |
Sp. nov |
Valid |
Pasini, Garassino & Charbonnier |
Middle Triassic (Anisian) |
A litogastrid lobster. |
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Somalis[31] |
Gen. et sp. nov |
Valid |
Barros & de Oliveira |
Early Cretaceous (Aptian-Albian) |
A member of Penaeoidea. The type species is S. piauiensis. |
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Soomicaris ordosensis[32] |
Sp. nov |
Liu et al. |
Ordovician |
Lashizhong Formation |
A member of Phyllocarida belonging to the group Archaeostraca and the family Caryocarididae. |
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Tanaidaurum[33] |
Gen. et sp. nov |
Valid |
Pazinato, Müller & Haug |
Cretaceous |
Burmese amber |
A member of Tanaidacea. The type species is T. kachinensis. |
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Triassosculda[34] |
Gen. et sp. nov |
Valid |
Smith, Charbonnier, Fara & Brayard in Smith et al. |
Early Triassic |
A mantis shrimp belonging to the group Unipeltata. The type species is T. ahyongi. |
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Trichopeltarion ryouheii[35] |
Sp. nov |
Valid |
Kato in Kato et al. |
Miocene |
Kosho Formation |
A member of the family Trichopeltariidae. |
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Urda buechneri[19] |
Sp. nov |
Schädel, Nagler & Hyžný |
Middle Jurassic (Bajocian) |
An isopod belonging to the group Scutocoxifera. |
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Urda stemmerbergensis[19] |
Comb. nov |
(Malzahn) |
Early Cretaceous (Hauterivian) |
An isopod belonging to the group Scutocoxifera. Moved from "Palaega" stemmerbergensis Malzahn (1968). |
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Urda suevica[19] |
Comb. nov |
(Reiff) |
Early Jurassic (Pliensbachian) |
An isopod belonging to the group Scutocoxifera. Moved from "Palaega" suevica Reiff (1936). |
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Viapagurus[16] |
Gen. et comb. nov |
Ferratges & Zamora in García-Penas et al. |
Early Cretaceous |
Maestrazgo Basin |
A hermit crab. The type species is "Pagurus" avellanedai Vía (1951). |
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Xanthosia sakoi[20] |
Sp. nov |
Valid |
Karasawa, Ohara & Kato |
Early Cretaceous (Barremian) |
Arida Formation |
A member of the family Etyidae. Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[20] |
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Malacostracan research
- Chény, Charbonnier & Audo (2023) reexamine the fossil record of lobsters from the Middle Jurassic of Normandy (France), providing evidence of the presence of sexual dimorphism in Glyphea dressieri and proposing the first reconstruction of this lobster.[36]
- A study on the extinction and survival of the decapod crustacean groups during the Cretaceous–Paleogene extinction event is published by Schweitzer & Feldmann (2023).[37]
Ostracods
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Acratia xinjiangensis[38] |
Sp. nov |
Luo et al. |
Carboniferous (Pennsylvanian) |
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Aechmina iwatensis[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Bairdia dukanensis[40] |
Sp. nov |
Valid |
Hawramy, Al-Obidee & Aziz |
Late Cretaceous |
Shiranish Formation |
A member of the family Bairdiidae. |
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Bairdoppilata shiranishensis[40] |
Sp. nov |
Valid |
Hawramy, Al-Obidee & Aziz |
Late Cretaceous |
Shiranish Formation |
A member of the family Bairdiidae. |
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Cutympanum[41] |
Gen. et sp. nov |
In press |
Williams et al. |
Si Ka Formation |
A glossomorphitine hollinoidean ostracod. Genus includes new species C. hagiangensis. |
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Cyprideis qattaraensis[42] |
Sp. nov |
Shahin, El Khawagah & Shahin |
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Cytheropteron tesakovae[43] |
Sp. nov |
Karpuk |
Early Cretaceous (Barremian–Aptian) |
Crimea |
A member of Podocopida belonging to the family Paradoxostomatidae. The specific name is shared with Cytheropteron tesakovae Kempf (2011). |
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Healdia ofunatensis[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Healdia rikutyuensis[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Healdianella shiqianensis[38] |
Sp. nov |
Luo et al. |
Carboniferous (Pennsylvanian) |
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Hornibrookella nudosa[40] |
Sp. nov |
Valid |
Hawramy, Al-Obidee & Aziz |
Late Cretaceous |
Shiranish Formation |
A member of the family Hemicytheridae. |
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Jordanites michinokuensis[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Liuzhinia phetchabunensis[44] |
Sp. nov |
Forel & Chitnarin |
Permian |
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Microceratina andreui[45] |
Sp. nov |
Valid |
Cabral & Lord in Danielopol et al. |
São Gião Formation |
A member of the family Cytheruridae. |
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Monspopulus[41] |
Gen. et sp. nov |
In press |
Williams et al. |
Silurian |
Si Ka Formation |
A sigmoopsine hollinoidean ostracod. Genus includes new species M. amicus. |
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Neomonoceratina farasensis[42] |
Sp. nov |
Shahin, El Khawagah & Shahin |
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Platyrhomboides japonica[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Platyrhomboides tohokuensis[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Pseudobythocypris asiatica[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Pseudobythocypris siveteri[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Pseudobythocypris zipangu[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Thuringobolbina ikeyai[39] |
Sp. nov |
Valid |
Tanaka |
Carboniferous (Pennsylvanian) |
Nagaiwa Formation |
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Thecostracans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Other crustaceans
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Carapacestheria cangshanensis[46] |
Sp. nov |
In press |
Li |
Late Jurassic |
A clam shrimp. |
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Insects
Megacheirians
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Radiodonts
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Gen. et comb. nov |
Zhang et al. |
Wulongqing Formation |
An amplectobeluid radiodont. The type species is "Anomalocaris" kunmingensis Wang, Huang & Hu (2013). |
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Trilobites
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Arisemolobes[48] |
Gen. et sp. nov |
Ingham & Fortey |
Ordovician |
A member of Asaphida belonging to the group Cyclopygoidea and the family Ellipsotaphridae. Genus includes new species A. zhouzhiyii. |
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Sp. nov |
Kerber et al. |
Devonian |
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Sp. nov |
Ingham & Fortey |
Ordovician |
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Leishuia[50] |
Gen. et sp. nov |
In press |
Peng et al. |
Longha Formation |
A dameselloid trilobite. Genus includes new species L. leishuae. |
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Synaptotaphrus[48] |
Gen. et sp. nov |
Ingham & Fortey |
Ordovician |
A member of Asaphida belonging to the group Cyclopygoidea and the family Ellipsotaphridae. Genus includes new species S. oarion. |
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Trilobite research
- A study on the timing of the appearance of trilobite planktic larvae is published Laibl, Saleh & Pérez-Peris (2023), who interpret their findings as indicating that Cambrian ecosystems were dominated by trilobites with exclusively benthic early post-embryonic stages, and that a progressive increase in the number of trilobite taxa that incorporated planktic stages in their development happened between the Miaolingian and the Middle Ordovician.[51]
- Hou, Hughes & Hopkins (2023) report the presence of setae on the walking legs of the Cambrian Olenoides serratus and on the gill shaft of the Ordovician Triarthrus eatoni, and interpret these setae as likely used to groom the gills of the trilobites.[52]
- Schoenemann & Clarkson (2023) describe specimens of Aulacopleura koninckii and Cyclopyge sibilla preserved with structures interpreted as likely median eyes, and interpret this finding as indicating that early developmental stages of trilobites possessed median eyes (probably unlike adult specimens).[53]
- Gishlick & Fortey (2023) describe a specimen of Walliserops trifurcatus with a malformed cephalic trident showing four rather than three tines, and consider its anatomy to be consistent with the interpretation of the trident as a weapon used for intraspecific combat.[54]
Other arthropods
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
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Electroprojapyx[55] |
Gen. et sp. nov |
Valid |
Sánchez-García et al. |
Late Cretaceous (Cenomanian) |
Burmese amber |
A member of Diplura belonging to the family Projapygidae. The type species is E. alchemicus. |
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Sp. nov |
Valid |
Zong et al. |
Silurian (Pridoli) |
|||||
Sp. nov |
Valid |
Du et al. |
||||||
Symphylurinopsis[55] |
Gen. et sp. nov |
Valid |
Sánchez-García et al. |
Miocene |
Dominican amber |
A member of Diplura belonging to the family Projapygidae. The type species is S. punctatus. |
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- Redescription of Isoxys curvirostratus, incorporating data from new fossil material from the Cambrian Chiungchussu Formation (China) and focusing on the biramous appendages of this arthropod, is published by Zhang et al. (2023), who report that the appendage differentiation in Isoxys was higher than previously considered, that the trunk of I. curvirostratus was not arthrodized, and that Isoxys was one of the earliest branching members of Deuteropoda.[58]
- New information on the anatomy of Concavicaris woodfordi, including the structure of the shield, the circulatory, digestive and reproductive systems, and the appendages, is presented by Laville et al. (2023).[59]
- New information on the morphology of the Carboniferous millipedes Amynilyspes fatimae and Blanziulus parriati from the Montceau-les-Mines Lagerstätte (France) is presented by Lheritier et al. (2023).[60]
General research
References
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- Xuan, Q.; Cai, C.Y.; Huang, D.Y. (2023). "Revision of palaeoburmesebuthid scorpions in mid-Cretaceous amber from northern Myanmar (Scorpiones: Buthoidea)". Palaeoentomology. 6 (1): 64–101. doi:10.11646/palaeoentomology.6.1.10. S2CID 257247707.
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- Khaustov, A. A.; Vorontsov, D. D.; Lindquist, E. E. (2023). "Unguicheylidae fam. nov., a new fossil family of prostigmatic mites (Acari: Prostigmata) from the Cretaceous Taimyr amber". Systematic and Applied Acarology. 28 (4): 766–776. doi:10.11158/saa.28.4.12.
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- Dunlop, J. A.; Dernov, V. S. (2023). "The first trigonotarbid arachnid from Ukraine". Acta Geologica Polonica. doi:10.24425/agp.2022.143600.
- Garwood, R. J.; Dunlop, J. A. (2023). "X-ray microtomography of the late Carboniferous whip scorpions (Arachnida, Thelyphonida) Geralinura britannica and Proschizomus petrunkevitchi". Journal of Systematic Palaeontology. 21 (1). 2180450. doi:10.1080/14772019.2023.2180450. S2CID 257976364.
- García-Villafuerte, M. Á.; Ibarra-Núñez, G. (2023). "The male of Strotarchus paradoxus (Petrunkevitch, 1963) (Araneae: Cheiracanthiidae), a fossil spider from Chiapas, Mexico". Acta Zoológica Mexicana. nueva serie. 39. e3912588. doi:10.21829/azm.2023.3912588.
- Wang, H.; Braddy, S. J.; Botting, J.; Zhang, Y. (2023). "The first documentation of an Ordovician eurypterid (Chelicerata) from China". Journal of Paleontology: 1–6. doi:10.1017/jpa.2023.21.
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