2024 in arthropod paleontology
2024 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 2024.
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Chelicerates[edit]
Arachnids[edit]
Araneae[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Guo, Selden & Ren in Guo et al. |
A spider belonging to the family Lagonomegopidae. |
||||||
Sp. nov |
Guo et al. |
Late Cretaceous (Cenomanian) |
Burmese amber |
A spider belonging to the family Lagonomegopidae. |
||||
Sp. nov |
Valid |
Hou et al. |
Cretaceous |
Burmese amber |
A spider belonging to the family Pholcochyroceridae. |
|||
Sp.nov |
Poinar |
Quaternary |
An ant-mimick spider |
|||||
Sp. nov |
Valid |
Hou et al. |
Cretaceous |
Burmese amber |
A spider belonging to the family Pholcochyroceridae. |
Ixodida[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A tick belonging to the family Nuttalliellidae. |
|||
Deinocroton lacrimus[4] |
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A tick belonging to the family Nuttalliellidae. |
||
Gen. et sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A tick belonging to the family Nuttalliellidae. The type species is L. robustus. |
|||
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A species of Nuttalliella. |
|||
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A species of Nuttalliella. |
|||
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A species of Nuttalliella. |
|||
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A species of Nuttalliella. |
|||
Sp. nov |
Valid |
Chitimia-Dobler, Dunlop & Mans in Chitimia-Dobler et al. |
Cretaceous |
Burmese amber |
A species of Nuttalliella. |
Opiliones[edit]
Opiliones research[edit]
- Gainett et al. (2024) report that extant daddy longlegs have six eyes, including four vestigial ones, and reevaluate the affinities of fossil members of Opiliones with four eyes, resulting in older estimated ages of harvestman diversification.[5]
Pseudoscorpiones[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
Valid |
Agnihotri et al. |
Eocene |
Cambay Basin |
A member of the family Geogarypidae. The type species is G. valiyaensis. |
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Sp. nov |
Córdova-Tabares et al. |
Miocene |
A member of the family Cheliferidae. |
Scorpiones[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Lourenço |
Cretaceous |
Burmese amber |
A member of the family Palaeoeuscorpiidae. |
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Gen. et sp. nov |
Valid |
Lourenço in Lourenço & Velten |
Cretaceous |
Burmese amber |
A member of Buthoidea belonging to the family Palaeoburmesebuthidae. The type species is P. schmidti. |
Solifugae[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Santana et al. |
Early Cretaceous (Aptian—Albian) |
A whip scorpion belonging to the family Thelyphonidae. |
Trombidiformes[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
Valid |
Khaustov, Vorontsov & Lindquist |
Cretaceous |
Burmese amber |
A mite belonging to the family Trochometridiidae. The type species is R. pankowskiorum. |
Trombidiform research[edit]
- Larvae of mites belonging to the group Erythraeoidea parasitising gall midges (providing evidence of an association unknown in extant fauna) are reported from the Cretaceous amber from Myanmar by Arce et al. (2024), who interpret this finding as indicative of shift of the host range of the studied mites after the Cretaceous.[12]
Other arachnids[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
Valid |
Selden & Dunlop |
Carboniferous (Pennsylvanian) |
A member of Pantetrapulmonata of uncertain affinities. The type species is D. acanthopoda. |
Xiphosurans[edit]
Xiphosuran research[edit]
- A specimen of Tachypleus syriacus preserved with intestinal contents transitioning into a coprolite is described from the Cenomanian Hjoula Lagerstätte (Lebanon) by Bicknell et al. (2024).[14]
Other chelicerates[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
Valid |
Bicknell et al. |
Carboniferous (Serpukhovian) |
A member of Euchelicerata of uncertain affinities. The type species is T. edgecombei. |
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Setapedites[16] | Gen. et sp. nov | Valid |
Lustri et al. |
Lower Ordovician | Fezouata Formation | Morocco | A member of Euchelicerata recovered as an offacolid synziphosurine. The type species is S. abundantis. |
Crustaceans[edit]
Malacostracans[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
Vega, Garassino, Nyborg & Pasini in Vega et al. |
Late Cretaceous |
A raninoid crab. The type species is A. hexagranula. |
|||||
Sp. nov |
Valid |
Nyborg et al. |
Late Cretaceous (Campanian) |
A raninoid crab. |
||||
Sp. nov |
Valid |
Garassino & Pasini in Girone et al. |
Pleistocene |
A crab belonging to the family Goneplacidae. |
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Sp. nov |
Valid |
Ossó et al. |
Late Cretaceous (Cenomanian) |
Picofrentes Formation |
A crab belonging to the family Dromiidae and the subfamily Goniodromitinae. |
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Gen. et 2 sp. nov |
Valid |
Copilaş-Ciocianu & Ionesi |
Miocene |
An amphipod belonging to the family Gammaridae. The type species is E. moldavica; genus also includes E. prisca. |
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Sp. nov |
Valid |
Gašparič et al. |
Oligocene (Chattian) |
Trbovlje Formation |
A crab belonging to the family Hymenosomatidae. |
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Sp. nov |
Garassino, Pasini, Mirzaie Ataabadi & Nyborg in Garassino et al. |
Miocene (Tortonian) |
A crab belonging to the family Leucosiidae and the subfamily Ebaliinae. |
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Sp. nov |
Valid |
Gašparič et al. |
Oligocene (Chattian) |
Trbovlje Formation |
A crab belonging to the family Hymenosomatidae. |
|||
Sp. nov |
Valid |
Garassino & Pasini in Girone et al. |
Pleistocene |
A crab belonging to the family Goneplacidae. |
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Gen. et comb. nov |
Valid |
Charbonnier et al. |
Miocene (Messinian) |
A crab belonging to the superfamily Majoidea and the family Oregoniidae. The type species is "Hyas" oranensis Van Straelen (1937). |
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Gen. et sp. nov |
Garassino, Pasini, Mirzaie Ataabadi & Nyborg in Garassino et al. |
Miocene (Tortonian) |
A crab belonging to the family Portunidae. The type species is P. arcuatus. |
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Sp. nov |
Valid |
Pasini & Garassino |
Miocene |
A species of Portunus. |
||||
Sp. nov |
Valid |
Van Bakel & Ossó |
Miocene (Tongaporutuan) |
Urenui Formation |
A relative of the Tasmanian giant crab. |
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Sp. nov |
Vega, Garassino, Nyborg & Pasini in Vega et al. |
Late Cretaceous |
A raninoid crab. |
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Gen. et sp. nov |
Vega, Garassino, Nyborg & Pasini in Vega et al. |
Late Cretaceous |
A raninoid crab. The type species is R. monosensis. |
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Comb. nov |
(Peach) |
Carboniferous (Tournaisian) |
A member of the family Tealliocarididae. Moved from Tealliocaris robusta Peach (1908). |
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Sp. nov |
Clark & Ross |
Carboniferous (Tournaisian) |
Ballagan Formation |
A member of the family Tealliocarididae. |
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Sp. nov |
Clark & Ross |
Carboniferous (Mississippian) |
A member of the family Tealliocarididae. |
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Gen. et comb. nov |
Valid |
Charbonnier et al. |
Miocene (Messinian) |
A crab belonging to the superfamily Majoidea and the family Epialtidae. The type species is "Maia" arambourgi Van Straelen (1937). |
Ostracods[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Ceolin et al. |
Cretaceous–Palaeogene transition |
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Gen. et sp. nov |
Siveter et al. |
Silurian |
A member of Beyrichicopida belonging to the group Binodicopina and the family Bolliidae. The type species is D. paparme. |
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Sp. nov |
Ceolin et al. |
Cretaceous–Palaeogene transition |
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Sp. nov |
Ceolin et al. |
Cretaceous–Palaeogene transition |
||||||
Sp. nov |
Ceolin et al. |
Cretaceous–Palaeogene transition |
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Sp. nov |
Forel et al. |
Late Jurassic (Oxfordian) |
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Nom. nov |
Li |
Silurian |
A member of the family Bythocytheridae; a replacement name for Scaphium Jordan (1964). Published online in 2024, but the issue date is listed as December 2023. |
Ostracod research[edit]
- A study on pores and associated canals in extant and Triassic ornate bairdiids, providing new morphological data interpret as supporting the interpretation of the Triassic genera Mirabairdia and Nodobairdia as distinct from the extant genus Triebelina, is published by Forel et al. (2024).[32]
- Taxonomic revision of ostracods from the Lower Cretaceous Codó Formation (Brazil) is published by Coimbra & Petró (2024).[33]
Other crustaceans[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Poschmann et al. |
Devonian |
Klerf Formation |
A clam shrimp. |
|||
Gen. et sp. nov |
Valid |
Poschmann et al. |
Devonian |
Klerf Formation |
A clam shrimp. The type species is E. wenndorfi. |
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Nom. nov |
Valid |
Ceccolini & Cianferoni |
Late Jurassic |
A member of the family Eosestheriidae; a replacement name for Pingquania Wang in Wang & Li (2008). Published online in 2024, but the issue date is listed as December 2023. |
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Sp. nov |
Valid |
Poschmann et al. |
Devonian |
A clam shrimp. |
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Sp. nov |
Valid |
Xue & Li |
Middle–Late Jurassic |
Yaojie Formation |
A clam shrimp. |
|||
Comb. nov |
(Chen) |
Late Triassic (Rhaetian) |
A clam shrimp. Originally described as Euestheria? luchangensis Chen (1974). |
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Sp. nov |
Valid |
Liao & Huang in Liao et al. |
Middle Jurassic (Callovian) |
Longmen Formation |
A clam shrimp belonging to the superfamily Eosestherioidea and the family Triglyptidae. |
Insects[edit]
Radiodonts[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Gen. et sp. nov |
In press |
Wu et al. |
A new genus of anomalocaridid radiodont. The type species is S. ankylosskelos. |
Trilobites[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Sepúlveda et al. |
Soleras Formation |
A member of Redlichiida belonging to the group Olenellina. |
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Sp. nov |
Valid |
Taylor, Loch & Repetski |
Cambrian (Furongian) |
A member of the family Olenidae. |
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Sp. nov |
Valid |
Sundberg, Cothren & Dehler |
Cambrian |
Nounan Formation |
A member of the family Aphelaspididae. |
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Gen. et comb. nov |
Valid |
Van Viersen |
Silurian |
Motol Formation |
A member of the family Odontopleuridae. The type species is "Acidaspis" roemeri Barrande (1852); genus also includes "Odontopleura" dormitzeri Hawle & Corda (1847) and "Odontopleura" dumortieri Hawle & Corda (1847). |
|||
Sp. nov |
Valid |
Johnson |
Devonian |
Achguig Group |
A member of Harpetida belonging to the family Harpetidae. |
|||
Sp. nov |
Valid |
Johnson |
Devonian |
Er Remlia Formation |
A member of Harpetida belonging to the family Harpetidae. |
|||
Sp. nov |
Valid |
Fortey, Vargas-Parra & Droser |
Ordovician |
A member of the family Raphiophoridae. |
||||
Sp. nov |
Valid |
Johnson |
Devonian |
El Otfal Formation |
A member of Harpetida belonging to the family Harpetidae. |
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Harpes lahceni[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
El Otfal Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Harpes lentigo[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Tazoulait Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Harpes oudris[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
El Otfal Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Harpes prescheri[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Er Remlia Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Harpes sphenocephalus[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Er Remlia Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Harpes supercilium[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
El Otfal Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Sp. nov |
Valid |
Johnson |
Devonian |
A member of Harpetida belonging to the family Harpetidae. |
||||
Sp. nov |
Valid |
Van Viersen |
Devonian |
A member of the family Odontopleuridae. |
||||
Sp. nov |
Valid |
Johnson |
Devonian |
Ihandar Formation |
A member of Harpetida belonging to the family Harpetidae. |
|||
Sp. nov |
Valid |
Sundberg, Cothren & Dehler |
Cambrian |
Nounan Formation |
A member of the family Kingstoniidae. |
|||
Sp. nov |
Valid |
Johnson |
Devonian |
Tazoulait Formation |
A member of Harpetida belonging to the family Harpetidae. |
|||
Lioharpes galea[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Ihandar Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Lioharpes morocconensis[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Boutiskaouine Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Lioharpes saredra[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Probably Boutiskaouine Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Lioharpes scopulum[44] |
Sp. nov |
Valid |
Johnson |
Devonian |
Probably Ihandar Formation |
A member of Harpetida belonging to the family Harpetidae. |
||
Gen. et 9 sp. et comb. nov |
Valid |
Johnson |
Devonian (Pragian to Emsian) |
Ihandar Formation |
A member of Harpetida belonging to the family Harpetidae. The types species is M. hammii; genus also includes new species M. azmamarensis, M. forteyi, M. ihmadii, M. laatchanensis, M. minutipunctus, M. oufatenensis, M. terridus and M. zguidensis, as well as "Harpes" rouvillei Frech (1887) and "Harpes" sculptus Hawle & Corda (1847). |
|||
Sp. nov |
Valid |
Webster in Webster & Caron |
Eager Formation |
A member of the family Olenellidae. |
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Gen. et 8 sp. et comb. nov |
Valid |
Johnson |
Devonian (Emsian to Eifelian) |
El Otfal Formation |
A member of Harpetida belonging to the family Harpetidae. The types species is P. segaouii; genus also includes new species P. apteros, P. chaperon, P. hannabouensis, P. haustrum, P. igaouii, P. merzaneensis and P. torquis, as well as "Harpes" hamarlaghdadensis Crônier et al. (2018) and probably also "Harpes" fornicatus Novák (1890) and "Harpes" pygmaeus Lütke (1965). |
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Sp. nov |
Valid |
Fortey, Vargas-Parra & Droser |
Ordovician |
Al Rose Formation |
A member of the family Nileidae. |
|||
Sp. nov |
Valid |
Leidi et al. |
Ordovician (Katian) |
A member of the family Encrinuridae. |
||||
Gen. et 4 sp. et comb. nov |
Valid |
Johnson |
Devonian (Lochkovian to Eifelian) |
A member of Harpetida belonging to the family Harpetidae. The types species is S. rissaniensis; genus also includes new species S. calceolus, S. capricornus and S. retiarius, as well as "Kielania" obuti Pribyl & Vanek (1986) and "Harpes" convexus Hawle & Corda (1847). |
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Sp. nov |
Valid |
Sepúlveda et al. |
Cambrian Stage 4 |
Soleras Formation |
A member of Redlichiida belonging to the group Ellipsocephaloidea and the family Ellipsocephalidae. |
|||
Sp. nov |
Valid |
Pereira, Rábano & Gutiérrez-Marco |
Ordovician (Katian) |
|||||
Sp. nov |
Valid |
Webster in Webster & Caron |
Cambrian Stage 4 |
Eager Formation |
A member of Olenelloidea belonging to the family Wanneriidae. |
Trilobite research[edit]
- Drage (2024) finds evidence of only minor differences in morphometry between trilobites displaying different modes of moulting.[49]
- Trilobite fossil material from the Tiout section in Morocco, representing the first occurrence of trilobites in West Gondwana and some of the oldest trilobite fossils in general, is determined to be approximately 519.62-million-years-old by Sinnesael, Millard & Smith (2024).[50]
- Hopkins, Gutiérrez-Marco & Di Silvestro (2024) describe fossil material of Leptoplastides salteri from the Fezouata Formation (Morocco), extending known range of this species from Avalonia into Gondwana.[51]
- Specimens of Dalmanitina socialis preserved with remains of the alimentary tract are described from the Ordovician Letná Formation (Czech Republic) by Fatka, Budil & Mikuláš (2024).[52]
- Bicknell et al. (2024) describe a specimen of Toxochasmops vormsiensis from the Katian Kõrgessaare Formation (Estonia) preserved molted within the body chamber of a nautiloid cephalopod Gorbyoceras textumaraneum, representing the first known record of cryptic molting of pterygometopid trilobites.[53]
- A study on the biogeography of Cheirurina during the Ordovician is published by Pérez-Peris, Adrain & Daley (2024).[54]
Other arthropods[edit]
Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
---|---|---|---|---|---|---|---|---|
Sp. nov |
Valid |
Taylor, Loch & Repetski |
Cambrian (Furongian) |
Windfall Formation |
A member of Agnostida belonging to the family Agnostidae. |
|||
Lotagnostus morrisoni[41] |
Sp. nov |
Valid |
Taylor, Loch & Repetski |
Cambrian (Furongian) |
Windfall Formation |
A member of Agnostida belonging to the family Agnostidae. |
||
Lotagnostus nolani[41] |
Sp. nov |
Valid |
Taylor, Loch & Repetski |
Cambrian (Furongian) |
Windfall Formation |
A member of Agnostida belonging to the family Agnostidae. |
||
Lotagnostus rushtoni[41] |
Sp. nov |
Valid |
Taylor, Loch & Repetski |
Cambrian (Furongian) |
Windfall Formation |
A member of Agnostida belonging to the family Agnostidae. |
||
Sp. nov |
Valid |
Taylor, Loch & Repetski |
Cambrian (Furongian) |
Windfall Formation |
A member of Agnostida belonging to the family Diplagnostidae. |
|||
Sp. nov |
Valid |
Ehiro & Kano |
Early Triassic (Olenekian) |
Osawa Formation |
A thylacocephalan belonging to the family Microcarididae. |
|||
Sp. nov |
Valid |
Jin et al. |
Hongjingshao Formation |
|||||
Sp. nov |
Valid |
Su, Cai & Huang |
Cretaceous (Albian to Cenomanian) |
Burmese amber |
A millipede belonging to the family Siphonorhinidae. |
|||
Sp. nov |
Valid |
Su, Cai & Huang |
Cretaceous (Albian to Cenomanian) |
Burmese amber |
A millipede belonging to the family Siphonorhinidae. |
- O'Flynn et al. (2024) describe new fossil material of Bushizheia yangi from the Cambrian Chengjiang Lagerstätte (China), providing new information on its head morphology, and interpret the studied specimens as supporting the interpretation of a six-segmented head as an ancestral state for Deuteropoda.[58]
- Lin et al. (2024) describe new fossil material of Retifacies abnormalis from the Cambrian Helinpu Formation (Yunnan, China) including large specimens with a carapace ornamentation different from what was previously known, and interpret the reported differences as developing during ontogeny, but don't consider them to indicate sexual dimorphs.[59]
General research[edit]
- Loewen et al. (2024) describe a diverse amber deposit from the Maastrichtian strata from the Big Muddy Badlands (Canada), preserving fossils of representatives of seven arthropod orders and at least 11 insect families, and interpret the studied assemblage as providing evidence of a faunal turnover among insects prior to the Cretaceous–Paleogene extinction event.[60]
References[edit]
- ^ a b Guo, X.; Selden, P. A.; Ren, D.; Niu, Y.; Zhang, F. (2024). "New Lineaburmops fossils (Araneae: Lagonomegopidae) with contrasting color patterns from mid-Cretaceous Kachin amber, northern Myanmar". Cretaceous Research. 158. 105835. Bibcode:2024CrRes.15805835G. doi:10.1016/j.cretres.2024.105835. S2CID 267009986.
- ^ a b Hou, Y.M.; Guo, X.B.; Selden, P. A.; Wang, L.Y.; Ren, D. (2024). "Two new long-pedipalp spiders (Araneae: Pholcochyroceridae) from mid-Cretaceous Kachin amber of northern Myanmar". Palaeoentomology. 7 (2): 224–236. doi:10.11646/palaeoentomology.7.2.6.
- ^ Poinar, G (2024). "Myrmarachne colombiana sp. n. (Araneae: Salticidae), a new species of ant-mimic spider in copal from Colombia, South America". Historical Biology: An International Journal of Paleobiology: 1–6. doi:10.1080/08912963.2024.2320190.
- ^ a b c d e f g h Chitimia-Dobler, L.; Handschuh, S.; Dunlop, J. A.; Pienaar, R.; Mans, B. J. (2024). "Nuttalliellidae in Burmese amber: Implications for Tick Evolution". Parasitology: 1–48. doi:10.1017/S0031182024000477. PMID 38623697.
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- ^ Agnihotri, P.; Singh, H.; Subramanian, K. A.; Vishwanathan, J.; Sahni, A. (2024). "A new genus and species of fossil pseudoscorpion (Arachnida: Pseudoscorpiones) from the Eocene amber of Western India". Palaeontologia Electronica. 27 (2). 27.2.a26. doi:10.26879/1276.
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