2020 in arthropod paleontology

This list of fossil arthropods described in 2020 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that are scheduled to be described during the year 2020, as well as other significant discoveries and events related to arthropod paleontology that are scheduled to occur in the year 2020.

List of years in arthropod paleontology
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Arachnids

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Burmacharon[1]	Gen. et sp. nov	In press	Hu et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A whip spider. Genus includes new species B. dunlopi.
Devonopilio[2]	Gen. et sp. nov	Valid	Tihelka, Tian & Cai	Devonian (Pragian)	Rhynie chert	United Kingdom	A member of Opiliones. The type species is D. hutchinsoni.
Epieremulus sidorchukae[3]	Sp. nov	In press	Arillo, Subías & Peñalver	Cretaceous	Asturian amber	Spain	A mite belonging to the group Oribatida and to the family Caleremaeidae
Mesozomus[4]	Gen. et sp. nov	Valid	Müller et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A member of Schizomida. Genus includes new species M. groehni.
Modisimus chiapanecus[5]	Sp. nov	In press	García-Villafuerte & Valdez-Mondragón	Miocene (Aquitanian)	Mexican amber	Mexico	A species of Modisimus
Neophyllobius electrus[6]	Sp. nov	Valid	Zmudzinski	Eocene	Baltic amber	Europe (Baltic Sea region)	A mite, a species of Neophyllobius.
Neophyllobius glaesus[6]	Sp. nov	Valid	Zmudzinski	Eocene	Baltic amber	Europe (Baltic Sea region)	A mite, a species of Neophyllobius.
Odontomegops[7]	Gen. et sp. nov	Valid	Guo et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A spider belonging to the family Lagonomegopidae. Genus includes new species O. titan.
Parioscorpio[8]	Gen. et sp. nov		Wendruff et al.	Silurian (Telychian)	Brandon Bridge	United States	An early scorpion. The type species is P. venator.
Procheiridium[9]	Gen. et sp. nov	Valid	Porta et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A pseudoscorpion belonging to the family Cheiridiidae and the subfamily Pycnocheiridiinae. Genus includes new species P. judsoni.
Suraju[10]	Gen. et sp. nov	In press	Martine et al.	Permian (Guadalupian)	Teresina Formation	Brazil	A scorpion. Genus includes new species S. itayma.

Crustaceans

Newly named taxa

Malacostracans

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Aliaplax[11]	Gen. et sp. nov	Valid	Pasini et al.	Early Pleistocene		Italy	A member of the family Goneplacidae. The type species is A. tyrsenorum.
Ancipitecancer[12]	Gen. et sp. nov	Valid	Pasini, Luque & Garassino	Pleistocene		Italy	A member of Xanthoidea sensu lato, of uncertain phylogenetic placement within that group. Genus includes new species A. collinsi.
Angusteryon[13]	Gen. et sp. nov	Valid	Audo & Furrer	Early Jurassic		Switzerland	A member of Polychelida, possibly belonging to the family Coleiidae. Genus includes new species A. oberlii.
Bournelyreidus shiranui[14]	Sp. nov	Valid	Ando in Ando et al.	Late Cretaceous (Cenomanian)	Enokuchi Formation	Japan	A lyreidid raninoid crab.
Caecorchestia[15]	Gen. et sp. nov	Valid	Hegna & Lazo-Wasem in Hegna et al.	Early Miocene	Mexican amber	Mexico	A member of Amphipoda belonging to the family Talitridae. Genus includes new species C. bousfieldi.
Callianassa reinhardpalorum[16]	Sp. nov	Valid	Hyžný	Miocene		Hungary  Poland  Slovakia	A species of Callianassa.
Callichirus santensis[17]	Sp. nov	In press	Hernáez, Buchmann & Santana	Late Pleistocene		Brazil	A species of Callichirus.
Cancer nancei[18]	Sp. nov	Valid	Bahman, Feldmann & Schweitzer	Miocene	St. Marys	United States	A species of Cancer
Cancer zahrae[18]	Sp. nov	Valid	Bahman, Feldmann & Schweitzer	Miocene	St. Marys	United States	A species of Cancer
Cherpihomola[19]	Gen. et sp. nov	Valid	Marangon & De Angeli	Oligocene (Rupelian)		Italy	A member of the family Homolidae. The type species is C. italica.
Collinscarcinus[20]	Gen. nov	Valid	Artal & van Bakel	Eocene (Ypresian)		Spain	A crab belonging to the family Xanthidae.
Cretacalliax[21]	Gen. et sp. nov	Valid	Pasini, Poore & Garassino	Late Cretaceous (Cenomanian)		Lebanon	A ghost shrimp belonging to the family Callianopsidae. Genus includes new species C. levantina.
Daira corallina[22]	Sp. nov	Valid	Ferratges, Zamora & Aurell	Late Eocene		Spain
Dardanus cherpionensis[23]	Sp. nov	Valid	Marangon & De Angeli	Oligocene (Rupelian)	Ligure-Piemontese Basin	Italy	A species of Dardanus.
Dardanus faxensis[24]	Sp. nov	Valid	Jakobsen et al.	Paleocene (Danian)	Faxe Formation	Denmark	A species of Dardanus.
Discosalaputium[25]	Gen. et sp. nov	Valid	Schädel et al.	Late Triassic (Carnian)	Reingraben	Austria	A member of Isopoda belonging to the group Scutocoxifera. The type species is D. aschauerorum.
Dynomene collinsi[26]	Sp. nov	Valid	Ossó et al.	Eocene (Priabonian)		Spain	A crab belonging to the family Dynomenidae.
Eodromites bernchrisdomiorum[27]	Sp. nov	Valid	Klompmaker et al.	Late Jurassic (Oxfordian)		Poland	A crab belonging to the family Goniodromitidae.
Eodromites cristinarobinsae[27]	Sp. nov	Valid	Klompmaker et al.	Early Cretaceous (Albian)	Eguino Formation	Spain	A crab belonging to the family Goniodromitidae.
Eopolycheles[28]	Gen. et sp. nov	Valid	Gašparič et al.	Late Triassic (Carnian)		Slovenia	A member of the family Polychelidae. Genus includes new species E. cornuaureus.
Eryma moriedaorum[14]	Sp. nov	Valid	Ando et al.	Late Cretaceous (Cenomanian)	Enokuchi Formation	Japan	A member of the family Erymidae.
Etyus tresgalloi[29]	Sp. nov	Valid	Ossó & Moreno-Bedmar	Early Cretaceous (Aptian)		Spain	A crab belonging to the family Etyiidae.
Eupilumnus? vokesae[30]	Sp. nov	In press	Luque in Luque et al.	Miocene		Mexico	A crab.
Europrosopon[27]	Gen. et comb. nov	Valid	Klompmaker et al.	Late Jurassic		Austria  Czech Republic  Germany  Romania	A crab belonging to the family Prosopidae. The type species is "Prosopon" aculeatum von Meyer (1857); genus also includes "Prosopon" abbreviatum Schweitzer & Feldmann (2009).
Galathea tuscia[11]	Sp. nov	Valid	Pasini et al.	Early Pleistocene		Italy	A species of Galathea.
Gammaroidorum[31]	Gen. et sp. nov	In press	Jarzembowski et al.	Early Cretaceous (Hauterivian)	Weald	United Kingdom	A member of Amphipoda. Genus includes new species G. vonki.
Gelrincola[25]	Gen. et sp. nov	Valid	Schädel et al.	Middle Triassic (Anisian)	Lower Muschelkalk Vossenveld Formation	Netherlands	A member of Isopoda belonging to the group Cymothoida. The type species is G. winterswijkensis.
Gemmellarocarcinus riglosensis[22]	Sp. nov	Valid	Ferratges, Zamora & Aurell	Late Eocene		Spain
Glebocarcinus doii[32]	Sp. nov	Valid	Karasawa & Takahashi	Early Miocene	Igami	Japan	A member of the family Cancridae
Graptocarcinus collinsi[33]	Sp. nov	Valid	Vega in Vega et al.	Late Cretaceous (Maastrichtian)	Arroyo Grande Formation	Cuba	A crab belonging to the family Dynomenidae.
Hefriga schlechtingerae[34]	Sp. nov	Valid	Winkler	Late Jurassic (Tithonian)	Solnhofen	Germany	A caridean shrimp
Hispanigalathea raymondcaseyi[35]	Sp. nov	In press	Van Bakel et al.	Early Cretaceous (Albian)	Gault	United Kingdom	A member of Galatheoidea.
Hoploparia hinokunika[14]	Sp. nov	Valid	Ando & Shimada in Ando et al.	Late Cretaceous (Cenomanian)	Enokuchi Formation Karakizaki Formation	Japan	A lobster.
Hoploparia tectumque[36]	Sp. nov	In press	Fraaije et al.	Late Cretaceous (Cenomanian)		Kazakhstan
Joecalcinus[37]	Gen. et sp. nov	Valid	Fraaije et al.	Eocene		Italy	A hermit crab belonging to the family Calcinidae. Genus includes new species J. bolcensis.
Laeviprosopon musialiki[38]	Sp. nov	Valid	Starzyk	Late Jurassic (Oxfordian)		Poland	A crab belonging to the family Prosopidae.
Lobogalenopsis joei[22]	Sp. nov	Valid	Ferratges, Zamora & Aurell	Late Eocene		Spain
Marmacuma[39]	Gen. et sp. nov	Valid	Artüz & Sakınç	Late Pleistocene		Turkey	A member of Cumacea belonging to the family Nannastacidae. Genus includes new species M. samimei.
Matutites collinsi[40]	Sp. nov	Valid	Davis, Garassino & Weaver	Middle Eocene	Castle Hayne	United States	A member of the family Matutidae.
Maurocarpilius[41]	Gen. et sp. nov	Valid	Ossó, Gagnaison & Bailleul	Eocene (Ypresian)	Ait Ouarhitane	Morocco	A member of the family Carpiliidae. The type species is M. binodosus.
Mesogalathea ardua[42]	Sp. nov	Valid	Gašparič, Robins & Gale	Late Jurassic (Kimmeridgian/Tithonian)		Slovenia	A member of the family Galatheidae.
Mizuhocancer[32]	Gen. et comb. nov	Valid	Karasawa in Karasawa & Takahashi	Early—Middle Miocene		Japan	A member of the family Cancridae. Monotypic with the type species, Cancer? Imamurae Imaizumi, 1962.
Munidopsis kaedetatsuyai [43]	Sp. nov	Valid	Karasawa	Miocene	Higashibessho Formation	Japan	A member of the family Munidopsidae.
Neoliomera zovoensis[44]	Sp. nov	Valid	De Angeli & Garassino	Early Eocene		Italy	A species of Neoliomera.
Obtusotelson[25]	Gen. et sp. nov	Valid	Schädel et al.	Late Triassic (Carnian)	Reingraben	Austria	A member of Isopoda belonging to the group Scutocoxifera. The type species is O. summesbergeri.
Paguristes collinsi[23]	Sp. nov	Valid	Marangon & De Angeli	Oligocene (Rupelian)	Ligure-Piemontese Basin	Italy	A species of Paguristes.
Paguristes frigoscopulus[24]	Sp. nov	Valid	Jakobsen et al.	Paleocene (Danian)	Faxe Formation	Denmark	A species of Paguristes.
Paguristes joecollinsi[45]	Sp. nov	Valid	Wallaard et al.	Miocene (Tortonian)	Pakhna Formation	Cyprus	A species of Paguristes.
Paguristes laurae[23]	Sp. nov	Valid	Marangon & De Angeli	Oligocene (Rupelian)	Ligure-Piemontese Basin	Italy	A species of Paguristes.
Palaeopalinurellus[46]	Gen. et sp. et comb. nov	Valid	Fraaije et al.	Late Jurassic		Czech Republic  France	A furry lobster. Genus includes new species P. culocervus, as well as "Palinurus" strambergensis Bachmayer (1959).
Palaeopolycheles nantosueltae[47]	Sp. nov		Jauvion et al.	Middle Jurassic (Callovian)	La Voulte-sur-Rhône	France	A member of Polychelida
?Proeryon erinaceus[48]	Sp. nov	Valid	Audo, Schweigert & Charbonnier	Late Jurassic (Oxfordian)		France
?Proeryon quiltyi[48]	Sp. nov	Valid	Audo, Schweigert & Charbonnier	Middle Jurassic (Callovian)		Antarctica
Prosopon josephcollinsi[27]	Sp. nov	Valid	Klompmaker et al.	Late Jurassic (Tithonian)	Ernstbrunn Limestone	Austria	A crab belonging to the family Prosopidae.
Protoapseudoidus[49]	Fam. et Gen. et sp. nov	In press	Heard et al.	Early Cretaceous (Aptian)	Sierra Madre	Mexico	A member of Tanaidacea belonging to the group Apseudomorpha, in the new family Protoapseudoidae. Genus includes new species P. espinalensis.
Pseudastacus lemovices[50]	Sp. nov	Valid	Charbonnier & Audo	Early Jurassic (Sinemurian)		France	A member of Astacidea belonging to the family Stenochiridae
Sabellidromites lanae[51]	Sp. nov	Valid	Nyborg, Garassino & Ross	Late Cretaceous (late Campanian)		Canada	A dromioid crab
Stenodactylina beardi[52]	Sp. nov	Valid	Feldmann, Schweitzer & Haggart	Late Cretaceous	Haslam	Canada	A member of the family Erymidae.
Stenodactylina devillezi[53]	Sp. nov	Valid	Schweigert & Härer	Late Jurassic (Kimmeridgian)	Nusplingen	Germany	A member of the family Erymidae.
Stenodactylina geigerae[53]	Sp. nov	Valid	Schweigert & Härer	Late Jurassic (Tithonian)	Usseltal	Germany	A member of the family Erymidae.
Tanidromites nightwishorum[27]	Sp. nov	Valid	Klompmaker et al.	Late Jurassic (Tithonian)	Ernstbrunn Limestone	Austria	A crab belonging to the family Tanidromitidae.
Tanidromites weinschenki[27]	Sp. nov	Valid	Klompmaker et al.	Late Jurassic (Kimmeridgian)	Oberjura-Massenkalk Formation	Germany	A crab belonging to the family Tanidromitidae.
Tymolus bottemilleri[54]	Sp. nov	Valid	Nyborg & Garassino	Miocene	Astoria	United States	A crab belonging to the family Cyclodorippidae.
Tymolus collinsi[54]	Sp. nov	Valid	Nyborg & Garassino	Miocene		United States	A crab belonging to the family Cyclodorippidae.
Vecticallichirus kawanoi[55]	Sp. nov	Valid	Ando	Late Eocene	Funazu	Japan	A ghost shrimp belonging to the family Callichiridae.

Ostracods

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Adelphobolbina praeclara[56]	Sp. nov	Valid	Becker, Braun & Pratt	Devonian		Canada
Angarallina[57]	Gen. et 2 sp. nov	Valid	Melnikova	Ordovician		Russia	Genus includes new species A. demissa and A. aenigma.
Araxobairdia[58]	Gen. et sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Podocopida belonging to the family Bairdiidae. The type species is A. formosa.
Bairdia paramolesta[59]	Sp. nov	Valid	Cabral, Lord & Pinto in Cabral et al.	Early Jurassic (Pliensbachian and Toarcian)		Portugal	A member of the family Bairdiidae.
Bairdiacypris kathleenae[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Late Permian and Early Triassic (Changhsingian–Griesbachian)		Iran	A member of Podocopida belonging to the family Bairdiidae.
Bythocypris dorsogibba[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Albian)	Orbata	Tunisia
Bythocypris? multagracilis[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Albian)	Orbata	Tunisia
Bythocypris? pythagorasi[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Aptian)	Orbata	Tunisia
Candonopsis carthaginensis[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Albian)	Orbata	Tunisia
Carinaknightina hofmanni[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Palaeocopida belonging to the family Kirkbyidae.
Cavellina fosteri[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Platycopida belonging to the family Cavellinidae.
Cavellina hairapetiani[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Platycopida belonging to the family Cavellinidae.
Costoprimites multicostatus[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Costoprimites processus[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Direigina[57]	Gen. et sp. nov	Valid	Melnikova	Ordovician		Russia	Genus includes new species D. nana.
Disulcina proxima[57]	Sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the family Tetradellidae.
Dolocythere amphistiela[62]	Sp. nov	Valid	Lord, Cabral & Danielopol	Early Cretaceous (Albian)		Germany	A member of Podocopida belonging to the family Cytheridae
Dolocytheridea donzei[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Albian)	Orbata	Tunisia
Dorsogibbella alium[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Eumiraculum mettei[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Wuchiapingian–Changhsingian)		Iran	A member of Podocopida belonging to the superfamily Bairdioidea.
Fabalicypris veronicae[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Podocopida belonging to the family Bairdiidae.
Foramenella sibirica[57]	Sp. nov	Valid	Melnikova	Ordovician		Russia
Hallatina oblonga[57]	Sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the group Leperditellocopida belonging to the family Primitiidae.
Hungaroleberis striatus[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Myodocopida belonging to the family Cylindroleberididae.
Illativella triquetra[56]	Sp. nov	Valid	Becker, Braun & Pratt	Devonian		Canada
Jonesites chunensis[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Kiesowia (?) incerta[57]	Sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the family Ctenonotellidae.
Kinkelinella ventrocarinata[59]	Sp. nov	Valid	Cabral, Pinto & Lord in Cabral et al.	Early Jurassic (Toarcian)		Portugal  United Kingdom	A member of the family Protocytheridae.
Korolyukina[57]	Gen. et 2 sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the family Bolliidae. Genus includes new species K. conspicua and K. taimyrica.
Laccochilina (?) jugata[57]	Sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the family Eurychilinidae.
Liuzhinia julfensis[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Late Permian and Early Triassic (Changhsingian–Griesbachian)		Iran	A member of Podocopida belonging to the superfamily Bairdioidea.
Lyumellina[61]	Gen. et sp. nov	Valid	Gonta	Ordovician		Russia	Genus includes new species L. risus
Minyocythere[62]	Gen. et 2 sp. et comb. nov	Valid	Lord, Cabral & Danielopol	Middle Jurassic (Aalenian and Bajocian)		Germany  Netherlands  United Kingdom	A cytherid Podocopida. The type species is M. macroporosa; genus also includes new species M. angulata, as well as "Dolocythere" maculosa Bate (1963) and "Dolocythere" tuberculata Luppold (2012).
Mongolianella kyranbeki[63]	Sp. nov	In press	Choi et al.	Cretaceous	Yanji	China
Nikolina entonipteros[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Nikolina pteroventralis[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Orthobairdia capuliformis[58]	Sp. nov	Valid	Gliwa in Gliwa et al.	Permian (Changhsingian)		Iran	A member of Podocopida belonging to the family Bairdiidae.
Paracypris chekhmai[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Aptian)	Orbata	Tunisia
Perissocytheridea altesulcata[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Aptian)	Orbata	Tunisia
Perissocytheridea kouminiensis[60]	Sp. nov	In press	Trabelsi et al.	Early Cretaceous (Albian)	Orbata	Tunisia
Postsinusella[61]	Gen. et sp. nov	Valid	Gonta	Ordovician		Russia	Genus includes new species P. guttaformis.
Pseudoleperditia? vetusta[56]	Sp. nov	Valid	Becker, Braun & Pratt	Devonian		Canada
Pseudulrichia replicata[57]	Sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the family Richinidae.
Steusloffia rudiformis[61]	Sp. nov	Valid	Gonta	Ordovician		Russia
Sulcicuneus gemmifer[56]	Sp. nov	Valid	Becker, Braun & Pratt	Devonian		Canada
Tasmanocypris lochardi[64]	Sp. nov	In press	Warne	Late Miocene and Pliocene		Australia
Tesakovites[57]	Gen. et sp. nov	Valid	Melnikova	Ordovician		Russia	A member of the family Circulinidae. Genus includes new species T. rotundatus.
Urftella triangula[56]	Sp. nov	Valid	Becker, Braun & Pratt	Devonian		Canada
Velatomorpha rochacamposi[65]	Sp. nov	Valid	Bergue, Maranhao & Ng	Permian		Brazil

Other crustaceans

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Actinobalanus? sloveniensis[66]	Sp. nov	Valid	Buckeridge et al.	Oligocene and Miocene		Slovenia	A barnacle.
Ambocyclus[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous		Ireland  Russia  United States?	A member of Cyclida. Genus includes A. capidulum (Chernyschev, 1933), A. simulans (Reed, 1908) and possibly A. ? minutus (Rogers, 1902).
Angulotergum kiamichensis[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Angulotergum milviformis[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Angulotergum robustum[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Arcoscalpellum s.l. isaonishikawai [69]	Sp. nov	Valid	Karasawa	Miocene	Katsuta Group	Japan	A member of the family Scalpellidae.
Arcoscalpellum s.l. Joei [69]	Sp. nov	Valid	Karasawa	Miocene	Yotsuyaku Formation	Japan	A member of the family Scalpellidae.
Arcuatoscalpellum wacoensis[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Ashinkailepas indica[70]	Sp. nov	Valid	Gale in Gale et al.	Late Pleistocene		India	A barnacle
Brachylepas hantonensis[71]	Sp. nov	Valid	Gale	Cretaceous		United Kingdom	A barnacle
Brachylepas thieli[71]	Sp. nov	Valid	Gale	Cretaceous			A barnacle
Brittaniclus[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous		United Kingdom	A member of Cyclida belonging to the family Americlidae. Genus includes B. rankini (Woodward, 1868), B. scotti (Woodward, 1894) and B. testudo (Peach, 1882).
Carabicyclus[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous		Ireland  United Kingdom	A member of Cyclida. Genus includes C. wrighti (Woodward, 1870).
Chernyshevine[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous		Tajikistan	A member of Cyclida. Genus includes C. spinosus (Chernyschev, 1933).
Collinslepas[71]	Gen. et 3 sp. nov	Valid	Gale	Cretaceous		Morocco  Tunisia	A barnacle. Genus includes new species C. aitlaminensis, C. robustus and C. tunisiensis.
Daohugounaias[72]	Gen. et sp. nov	Valid	Luo et al.	Middle Jurassic	Daohugou	China	A member of Anostraca. Genus includes new species D. cheni.
Diotascalpellum acies[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Dziklus[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous	Mazon Creek fossil beds	United States	A member of Cyclida belonging to the family Americlidae. Genus includes D. obesus (Schram, Vonk & Hof, 1997).
Eoverruca aubensis[71]	Sp. nov	Valid	Gale	Early Cretaceous (Albian)		France	A barnacle
Eoverruca symmetrica[71]	Sp. nov	Valid	Gale	Late Cretaceous (Campanian)		United Kingdom	A barnacle
Etcheslepas portlandensis[73]	Sp. nov	In press	Gale	Tithonian–Berriasian	Portland Group	United Kingdom	A barnacle
Fallaxlepas[71]	Gen. et comb. nov	Valid	Gale	Cretaceous		United Kingdom	A brachylepadid barnacle. The type species is "Pollicipes" fallax Darwin (1851)
Iliestheria urumqiensis[74]	Sp. nov	In press	Teng & Li	Early Jurassic (Pliensbachian–Toarcian)	Sangonghe	China	A clam shrimp.
Ivolepas worthensis[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Jagtscalpellum[71]	Gen. et comb. et 3 sp. nov	Valid	Gale	Cretaceous		United Kingdom  United States	A barnacle. The type species is "Pollicipes" striatus Darwin (1851); genus also includes "Pollicipes" filosus Withers (1911), as well as new species J. africanum, J. spinosum and J. luteorum.[68]
Lahuerguinagrapta[75]	Gen. et sp. nov	In press	Gallego et al.	Early Cretaceous	La Huérguina	Spain	An afrograptid clam shrimp. Genus includes new species L. multicostata.
Litocyclus[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous		Ireland  United Kingdom  United States?	A member of Cyclida. Genus includes L. bilobatus (Woodward, 1870), L. jonesianus (Woodward, 1870), L. torosus (Woodward, 1870) and possibly also L. ? communis (Rogers, 1902) and L. ? permarginatus (Rogers, 1902).
Loriculina fragila[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Loriculina rubrifluvia[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Loriolepas whytei[73]	Sp. nov	In press	Gale	Tithonian–Berriasian		United Kingdom	A barnacle
Proverruca anglica[71]	Sp. nov	Valid	Gale	Cretaceous		United Kingdom	A barnacle
Regioscalpellum kennedyi[71]	Sp. nov	Valid	Gale	Cretaceous			A barnacle
Striascalpellum[71]	Gen. et 3 sp. et comb. nov	Valid	Gale	Cretaceous		United Kingdom	A barnacle. The type species is S. elegans; genus also includes new species S. bromleyi and S. barringtonensis, as well as "Scalpellum (Titanolepas)" martini Withers (1935).
Subsecolepas[71]	Gen. et sp. nov	Valid	Gale	Cretaceous			A barnacle. The type species is S. holtwilsoni.
Tazawacyclus[67]	Gen. et comb. nov	Valid	Schweitzer, Mychko & Feldmann	Carboniferous		Japan	A member of Cyclida. Genus includes T. tazawai (Niko & Ibaraki, 2011).
Texaslepas[68]	Gen. et sp. nov	In press	Gale	Cretaceous		United States	A barnacle. Genus includes new species T. holterhoffi.
Virgilepas[71]	Gen. et 3 sp. nov	Valid	Gale	Cretaceous		Morocco	A barnacle. Genus includes new species V. aboudaensis, V. peakei and V. hancocki.
Virgiscalpellum laevis[71]	Sp. nov	Valid	Gale	Cretaceous			A barnacle
Virgiscalpellum marysensis[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Virgiscalpellum mhrilensis[71]	Sp. nov	Valid	Gale	Cretaceous		Tunisia	A barnacle
Virgiscalpellum multilineatum[71]	Sp. nov	Valid	Gale	Cretaceous			A barnacle
Virgiscalpellum rugosum[68]	Sp. nov	In press	Gale	Cretaceous		United States	A barnacle.
Virgiscalpellum sussexiense[71]	Sp. nov	Valid	Gale	Cretaceous		United Kingdom	A barnacle
Virgiscalpellum truncatum[71]	Sp. nov	Valid	Gale	Cretaceous			A barnacle
Witherscalpellum[71]	Gen. et comb. nov	Valid	Gale	Cretaceous		France  United Kingdom	A barnacle. The type species is "Cretiscalpellum aptiensis Withers (1935); genus also includes "Cretiscalpellum" matrioni Gale (2019).

General research

• Redescription and a study on the phylogenetic relationships of Francocaris grimmi, based on data from new fossil material from the Solnhofen Limestone (Germany), is published by Pazinato et al. (2020).[76]
• A hermit crab belonging to the family Pylochelidae preserved in a shell of an ammonite belonging to the species Craspedites nekrassovi will be described from the Upper Jurassic of Moscow, Russia by Mironenko (2020).[77]
• A putative lobster Tricarina gadvanensis from the Early Cretaceous of Iran is reinterpreted as a seroloid isopod by Hyžný et al. (2020).[78]
• Redescription of Americlus rankini and a study on the paleoecology of this taxon is published by Clark et al. (2020).[79]

Insects

Main article: 2020 in insect paleontology

Trilobites

New taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Aciculolenus askewi[80]	Sp. nov	Valid	Chatterton	Cambrian (Jiangshanian)		Canada
Blountia angelae[81]	Sp. nov	Valid	Armstrong, Westrop & Eoff	Cambrian	Nolichucky Formation	United States	A member of the family Kingstoniidae.
Blountia morgancreekensis[81]	Sp. nov	Valid	Armstrong, Westrop & Eoff	Cambrian	Riley Formation	United States	A member of the family Kingstoniidae.
Blountia nevadensis[81]	Sp. nov	Valid	Armstrong, Westrop & Eoff	Cambrian	Mendha Formation	United States	A member of the family Kingstoniidae.
Blountia newfoundlandensis[81]	Sp. nov	Valid	Armstrong, Westrop & Eoff	Cambrian	Shallow Bay Formation	Canada	A member of the family Kingstoniidae.
Blountia tennesseensis[81]	Sp. nov	Valid	Armstrong, Westrop & Eoff	Cambrian	Nolichucky Formation	United States	A member of the family Kingstoniidae.
Boethiusia[82]	Gen. et comb. nov	Valid	Geyer	Cambrian		Italy	A new genus for "Dolerolenus" courtessolei Pillola (1991).
Calymene dastanpouri[83]	Sp. nov	In press	Ameri, Arjmandzadeh & Ghoorcgi	Early Silurian	Niur Formation	Iran
Clappaspis tupeq[84]	Sp. nov	Valid	Peel	Cambrian (Miaolingian)	Telt Bugt Formation	Greenland	A member of the family Alokistocaridae.
Cliffia nicoleae[80]	Sp. nov	Valid	Chatterton	Cambrian (Jiangshanian)		Canada
Dicranurus webbyi[85]	Sp. nov	In press	Holloway, Smith & Thomas	Ordovician (Katian)	Gunningbland Formation	Australia	An odontopleurid trilobite.
Ehmaniella sermersuaqensis[84]	Sp. nov	Valid	Peel	Cambrian (Miaolingian)	Telt Bugt Formation	Greenland	A member of the family Alokistocaridae.
Elrathia hensonensis[86]	Nom. nov	In press	Geyer & Peel	Cambrian	Ekspedition Bræ Formation	Greenland	A replacement name for Elrathia groenlandica Geyer & Peel (2017).
Epicurella[82]	Gen. et sp. nov	Valid	Geyer	Cambrian		Morocco	A member of the family Despujolsiidae. Genus includes new species E. pustulata.
Kingaspidoides spinirecurvatus[87]	Sp. nov	In press	Geyer, Pais & Wotte	Cambrian	Jbel Wawrmast Formation	Morocco	A member of Redlichiida belonging to the family Ellipsocephalidae.
Marsaisia devoillei[82]	Sp. nov	Valid	Geyer	Cambrian		Morocco	A member of the family Despujolsiidae.
Marsaisia? lemdadensis[82]	Sp. nov	Valid	Geyer	Cambrian		Morocco	A member of the family Despujolsiidae.
Placoparia africana[88]	Sp. nov	In press	Pereira & Gutiérrez-Marco in Gutiérrez-Marco et al.	Ordovician (Sandbian)		Morocco
Proabadiella[89]	Gen. et 2 sp. nov	Valid	Liñán et al.	Cambrian Stage 3	Pusa Formation	Spain	Genus includes new species P. toletana and P. vidalii.
Prophalaron[85]	Gen. et sp. nov	In press	Holloway, Smith & Thomas	Ordovician (Katian)	Gunningbland Formation	Australia	A calymenid trilobite. Genus includes new species P. jonesi.
Satunarcus[90]	Gen. et sp. nov	Valid	Wernette et al.	Late Cambrian	Ao Mo Lae Formation	Thailand	A kaolishaniid trilobite belonging to the new subfamily Ceronocarinae. Genus includes new species S. molaensis.
Saukianda? dresnayi[91]	Sp. nov	In press	Geyer & Landing	Cambrian		Moroccan‒Algerian border region
Treveropyge hellemondi[92]	Sp. nov	Valid	Van Viersen & Taghon	Devonian (Emsian)	Our Formation	Belgium	A member of the family Acastidae.

General research

• A study on the timing of the trilobite extinctions at the early to middle Cambrian transition is published by Sundberg et al. (2020).[93]
• A study on trilobite size variations in the Ordovician Fezouata Formation (Morocco) deposited in a cold-water environment is published by Saleh et al. (2020).[94]
• A study on the nature of variation among oryctocephalid specimens from the Combined Metals Member of the Pioche Formation (Nevada; Cambrian Stage 4) will be published by Webster & Sundberg (2020).[95]
• A study on the ontogeny of the olenid trilobite Leptoplastides salteri is published by Månsson & Clarkson (2020).[96]
• A study on the anatomy of the internal structures of the compound eye of Aulacopleura koninckii is published by Schoenemann & Clarkson (2020).[97]

Other arthropods

Newly named taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Bushizheia[98]	Gen. et sp. nov	Valid	O’Flynn & Liu in O’Flynn et al.	Cambrian Stage 3	Chiungchussu	China	An early euarthropod of uncertain phylogenetic placement. The type species is B. yangi.
Concavicaris martinae[99]	Sp. nov	Valid	Broda, Rak & Hegna	Devonian (Famennian)		Czech Republic	A thylacocephalan.
Concavicaris pikae[99]	Sp. nov	Valid	Broda, Rak & Hegna	Devonian (Famennian)		Poland	A thylacocephalan.
Concavicaris submarinus[100]	Sp. nov		Jobbins, Haug & Klug	Devonian (Famennian)		Morocco	A thylacocephalan.
Concavicaris woodruffensis[99]	Sp. nov	Valid	Broda, Rak & Hegna	Devonian (Famennian)	Woodruff Formation	United States	A thylacocephalan.
Hipponicharion perforata[101]	Sp. nov	Valid	Skovsted et al.	Cambrian	Mural	Canada	A member of Bradoriida belonging to the family Hipponicharionidae.
Kanoshoia[102]	Gen. et sp. nov	Valid	Lerosey‐Aubril et al.	Cambrian (Drumian)	Wheeler Shale	United States	A megacheiran. Genus includes new species K. rectifrons.
Mesolimulus tafraoutensis[103]	Sp. nov	In press	Lamsdell et al.	Late Cretaceous (Cenomanian–Turonian)	Gara Sbaa Lagerstätte	Morocco	A horseshoe crab.
Paraconcavicaris[99]	Gen. et comb. nov	Valid	Broda, Rak & Hegna	Carboniferous (Tournaisian)	Líšeň Formation	Czech Republic	A thylacocephalan; a new genus for "Concavicaris" viktoryni Rak, Broda & Kumpan (2018).
Pauropsxenus extraneus[104]	Sp. nov	In press	Su, Cai & Huang	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A millipede belonging to the family Polyxenidae.
Pauropsxenus ordinatus[104]	Sp. nov	In press	Su, Cai & Huang	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A millipede belonging to the family Polyxenidae.
Pseudobeyrichona taurata[101]	Sp. nov	Valid	Skovsted et al.	Cambrian	Mural	Canada	A member of Bradoriida belonging to the family Hipponicharionidae.
Sklerolibyon[105]	Gen. et sp. nov		Aria et al.	Cambrian Stage 3	Maotianshan Shale Member of the Yu’anshan Formation	China	A megacheiran related to Jianfengia and Fortiforceps. The type species is S. maomima.
Soligorskopterus shpinevi[106]	Sp. nov	In press	Naugolnykh & Areshin	Late Devonian		Russia	An eurypterid.
Tariccoia tazagurtensis[107]	Sp. nov	In press	Pérez-Peris et al.	Early Ordovician	Fezouata	Morocco	A nektaspid arthropod.
Thelxiope holmani[108]	Sp. nov	Valid	Lerosey-Aubril, Skabelund & Ortega-Hernández	Cambrian (Drumian)	Wheeler Shale	United States	A possible member of Chelicerata.
Xiaocaris[109]	Gen. et sp. nov		Liu et al.	Cambrian Stage 3	Chiungchussu Formation	China	A member of the group Fuxianhuiida. The type species is X. luoi.

General research

• Exceptionally preserved specimens of Chuandianella ovata carrying a large number of small eggs are described from the Cambrian Chengjiang biota (China) by Ou et al. (2020), who compare the reproductive strategies of C. ovata and closely related Waptia fieldensis.[110]
• Sun, Zeng & Zhao (2020) report the discovery of a member of the genus Sidneyia belonging or related to the species S. inexpectans from the Wuliuan Mantou Formation of North China, expanding known distribution of this genus.[111]
• A putative xiphosuran Kiaeria is reinterpreted as a member of Chasmataspidida by Lamsdell (2020a).[112]
• A study on the anatomy of head structures of Heterocrania rhyniensis, evaluating its implications for the knowledge of the phylogenetic relationships of euthycarcinoids, is published by Edgecombe et al. (2020).[113]
• A study on heterochrony in Xiphosura, showing that clades that occupy non-marine environments show elevated rates of peramorphosis or paedomorphosis is published by Lamsdell (2020b). [114]
• A study on the morphology of the feeding apparatuses of Eurypterida and Trigonotarbida is published by Haug (2020).[115].
• A study aiming to determine the range of prey sizes that could be captured by sweep-feeding eurypterids is published by Hughes & Lamsdell (2020).[116]
• A study on the anatomy and phylogenetic relationships of Anhelkocephalon handlirschi is published by Schädel & Haug (2020), who interpret this taxon as a probable member of Cyclida rather than an isopod.[117]
• Liu et al. (2020) report evidence of the presence of a three-dimensionally preserved labrum associated with the mouth opening in juvenile specimens of Leanchoilia illecebrosa.[118]

References

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34. Norbert Winkler (2020). "A new caridean shrimp (Crustacea: Decapoda) from the Solnhofen Lithographic Limestones (Upper Jurassic, southern Germany)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 295 (2): 117–128. doi:10.1127/njgpa/2020/0873.
35. Barry W.M. van Bakel; René H.B. Fraaije; John W.M. Jagt; Martin I. Simpson (2020). "Hispanigalathea raymondcaseyi, a new squat lobster (Crustacea, Decapoda, Galatheoidea) from the Gault (Albian) of Folkestone, England". Proceedings of the Geologists' Association. in press. doi:10.1016/j.pgeola.2020.03.010.
36. René H.B. Fraaije; John W.M. Jagt; Barry W.M. van Bakel; Dale M. Tshudy (2020). "A new early Late Cretaceous nephropid lobster (Crustacea, Decapoda) from Kazakhstan, entombed within an ammonite body chamber". Cretaceous Research. 115: Article 104552. doi:10.1016/j.cretres.2020.104552.
37. René H.B. Fraaije; Claudio Beschin; Alessandra Busulini; Giuliano Tessier; John W.M. Jagt; Barry W.M. van Bakel (2020). "Joecalcinus, a new hermit crab genus from the Eocene of northern Italy: the second Cenozoic representative of the extant family Calcinidae (Decapoda, Anomura)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 296 (1–2): 101–105. doi:10.1127/njgpa/2020/0871.
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45. Jonathan J.W. Wallaard; René H. B. Fraaije; John W.M. Jagt; Adiël A. Klompmaker; Barry W. M. van Bakel (2020). "The first record of a paguroid shield (Decapoda, Anomura, Annuntidiogenidae) from the Miocene of Cyprus". Geologija. 63 (1): 93–99. doi:10.5474/geologija.2020.010.
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51. Torrey Nyborg; Alessandro Garassino; Richard L.M. Ross (2020). "A new dromioid crab from the late Campanian of Hornby Island, Canada". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 295 (2): 141–147. doi:10.1127/njgpa/2020/0878.
52. Rodney M. Feldmann; Carrie E. Schweitzer; James W. Haggart (2020). "A new erymoid lobster (Decapoda: Glypheidea: Erymidae) from the Upper Cretaceous of British Columbia, Canada, and a summary of Erymoidea from North America". Journal of Crustacean Biology. 40 (3): 269–276. doi:10.1093/jcbiol/ruaa005.
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81. Madison Armstrong; Stephen R. Westrop; Jennifer D. Eoff (2020). "Systematics of a survivor: the Cambrian kingstoniid trilobite Blountia Walcott, 1916 across the Marjuman–Steptoean (Guzhangian–Paibian) extinction interval in Laurentian North America". Zootaxa. 4804 (1): 1–79. doi:10.11646/zootaxa.4804.1.1.
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