2018 in arthropod paleontology
nov Valid Wang et al. Late Cretaceous (Cenomanian) Burmese amber Myanmar An arachnid closely related to spiders and to the extinct group Uraraneida.
nov Valid García-Villafuerte Miocene (Aquitanian) Mexican amber Mexico A jumping spider, a species of Galianora Haemaphysalis (Alloceraea) cretacea[27] Sp.
nov Valid Chitimia-Dobler, Pfeffer & Dunlop Late Cretaceous (Cenomanian) Burmese amber Myanmar A tick, a species of Haemaphysalis.
nov Valid Dunlop, Frahnert & Mąkol Late Cretaceous (Cenomanian) Burmese amber Myanmar A mite belonging to the family Smarididae.
nov Valid Karasawa Miocene Korematsu Formation Lower Sandstone Member of the Bihoku Group Japan A crab belonging to the family Varunidae.
nov Valid Nyborg, Pasini & Garassino Pliocene-Pleistocene San Diego Formation United States A crab belonging to the family Leucosiidae.
nov Valid Robin et al. Eocene (Ypresian) Monte Bolca Italy An isopod, a species of Cirolana found in association with electric rays belonging to the genus Titanonarke.
nov Valid Feldmann, Schweitzer & Goedert Late Oligocene to earliest Miocene Lincoln Creek Formation United States A crab belonging to the family Carcinidae.
nov Valid Vega et al. Late Cretaceous (Campanian) Cerro del Pueblo Formation Parras Shale Mexico A crab belonging to the family Mathildellidae.
Early Cretaceous (late Aptian–early Albian) Romualdo Formation Brazil A crab belonging to the group Heterotremata, possibly a member of the family Eogeryonidae.
nov Valid Stocker et al. Carboniferous (Moscovian) Ichinotani Formation Japan A member of Podocopa belonging to the order Beyrichiocopida and the family Aechminidae.
nov Valid Crasquin, Sciuto & Reitano Late Triassic (Carnian) Mufara Formation Italy A member of Podocopa belonging to the family Bairdiidae.
nov Valid Franz, Ebert & Stulpinaite Middle Jurassic (Aalenian and Bajocian) Upper Opalinuston Formation Germany A member of the family Cytheruridae.
nov Valid Forel in Ketmuangmoon et al. Middle Triassic (Anisian) Pha Kan Formation Thailand Bolbinella limbata[100] Sp.
nov Valid Choi, Wang & Huh Early Cretaceous Jinju Formation South Korea Cypridea vianai[92] Sp.
nov Valid Stocker et al. Carboniferous (Moscovian) Ichinotani Formation Japan A member of Podocopa belonging to the order Podocopida and the family Healdiidae.
nov Valid Chitnarin in Ketmuangmoon et al. Middle Triassic (Anisian) Pha Kan Formation Thailand Hungaroleberis[111] Gen. et sp.
nov Valid Forel in Ketmuangmoon et al. Middle Triassic (Anisian) Pha Kan Formation Thailand Liuzhinia antalyaformis[85] Sp.
nov Valid Forel in Ketmuangmoon et al. Middle Triassic (Anisian) Pha Kan Formation Thailand Tyrrhenocythere pulcherrima[115] Sp.
nov Valid Song & Gong Late Devonian Gelaohe Formation China A member of Podocopida belonging to the superfamily Bairdiocypridoidea and the family Bairdiocyprididae.
nov Valid Gueriau, Rabet & Du Tien Hat Devonian (late Famennian) Belgium A clam shrimp belonging to the group Vertexioidea.
nov Valid Webster & Hageman Cambrian Series 2 (Montezuman) Murray Shale United States Chlupacula (Chiides) pandora[134] Sp.
nov Valid McAdams, Adrain & Karim Early Ordovician United States The type species is M. milsteadi; genus also includes M. knoxi.
nov Valid Rak, Broda & Kumpan Carboniferous Czech Republic A member of Thylacocephala (a group of arthropods of uncertain phylogenetic placement, possibly crustaceans).
nov Valid Westrop, Broda & Dengler Cambrian Shallow Bay Formation Canada A member of Agnostida belonging to the family Eodiscidae.
nov Valid Westrop, Broda & Dengler Cambrian Manuels River Formation Canada A member of Agnostida belonging to the family Eodiscidae.
nov Valid Westrop, Broda & Dengler Cambrian Manuels River Formation Canada A member of Agnostida belonging to the family Eodiscidae.
nov Valid Khramov et al. Late Permian Poldarsa Formation Russia A member of Scolopendromorpha of uncertain phylogenetic placement.
nov Valid Moritz & Wesener Late Cretaceous (Cenomanian) Burmese amber Myanmar A member of Symphyla belonging to the family Scolopendrellidae.
nov Valid Shpinev & Vasilenko Carboniferous Sarskaya Formation Russia Probably a xiphosuran (order Xiphosura) belonging to the suborder Xiphosurida and the infraorder Belinurina.
