This list of fossil arthropods described in 2011 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2011. The list only includes taxa at the level of genus or species.
Arachnids Name Novelty Status Authors Age Unit Location Notes ImagesAcarus indicusSp. novDisputedKumar et al.Early Permian Manjir FormationA mite. Originally described as a species of Acarus; Sidorchuk (2018) considered it more likely to be a misidentified immature nothrine oribatid mite (probably a member of the family Nothridae), and more likely to be a contaminant from the extant soil fauna rather than a genuine Paleozoic fossil.AmeticosGen. et sp. novGarwood et al.Carboniferous (late Stephanian)A member of Opiliones. The type species is A. scolos.Araneaovoius columbiaeGen et comb novvalidDunlop & Braddy?YpresianQuesnel?Fraser FormationAn orb-web spider egg sack ichnogenus. New ichnogenus for Aranea columbiae (Scudder 1878).BurmesiolaGen. et sp. novValidWunderlichLate Cretaceous (Cenomanian)Burmese amberA tree trunk spider. Genus includes new species B. cretacea.ChaerilobuthusGen. et sp. novValidLourenço & BeigelLate Cretaceous (Cenomanian) Burmese amberA chaerilobuthid scorpion. The type species is C. complexus.EoscaphiellaGen. et sp. novValidWunderlichLate Cretaceous (Cenomanian)Burmese amberA member of the family Tetrablemmidae. Genus includes new species E. ohlhoffi.Episinus tibiasetaSp. novValidWunderlichMioceneDominican amberA member of the family Theridiidae, a species of Episinus.FemurraptorGen. et sp. novValidWunderlichMioceneDominican amberA member of the family Theridiidae. Genus includes new species F. dominicanus.Fictotama maculosaSp. novValidWunderlichMioceneDominican amberA tree trunk spider.GlaesacarusGen. et comb. novValidSidorchuk & KlimovEocene Baltic amberEurope (Baltic Sea region)A mite; a new genus for "Acarus" rhombeus Koch & Berendt (1854)JerseyuloborusGen. et sp. novValidWunderlichLate CretaceousNew Jersey amberA member of the family Uloboridae. Genus includes new species J. longisoma.MacrogyionGen. et sp. novGarwood et al.Carboniferous (late Stephanian)A member of Opiliones. The type species is M. cronus.Nephila jurassicasp novObjective synonymSelden, Shih & RenMiddle Jurassic Jiulongshan Formationlargest fossil spider described. objective syn of Mongolarachne jurassicaLabidostomma paleoluteumSp. novValidDunlop & BertrandEocene Baltic amberEurope (Baltic Sea region)A mite, a species of Labidostomma.Praeterleptoneta tibialisSp. novValidWunderlichLate Cretaceous (Cenomanian)Burmese amberA member of Araneomorphae belonging to the family Praeterleptonetidae. Originally described as a species of Praeterleptoneta, subsequently transferred to the separate genus Parvispina.Scopoides dominicanusSp. novValidWunderlichMioceneDominican amberA ground spider, a species of Scopoides.Siro balticusSp. novValidDunlop & MitovEocene Baltic amberEurope (Baltic Sea region)A member of Opiliones, a species of Siro.SpinocharinusGen. et sp. novValidPoschmann & DunlopEarly DevonianA member of Trigonotarbida. The type species is S. steinmeyeri.
Crustaceans Name Novelty Status Authors Age Unit Location Notes ImagesAenigmastacusGen et sp novvalidFeldmann, Schweitzer, & LeahyEoceneYpresianOkanagan HighlandsTranquille FormationA parastacid freshwater crayfishDynamenella miettoiSp. novValidDe Angeli & LovatoEoceneLutetian An isopod belonging to the family Sphaeromatidae.
Insects Name Novelty Status Authors Age Unit Location Notes ImagesAgulla protomaculatasp novjr synonymEngelLutetian Green River FormationA raphidiid snakefly. Moved to Archiinocellia protomaculata in 2021 Alicodoxa Gen et sp novValidEmeljanov & Shcherbakovlate EoceneRovno amberA planthopper, type species A. rasnitsyni also found in Baltic amberAnonychomyrma geinitziComb novvalid (Mayr)LutetianBaltic amberFossil Dolichoderin ant Aradus andancensisSp novvalidMarchal, Guilbert, Brisac, & NelTurolianMontagne d'AndanceA flat bugArchiaustroconops borkentiSp. novValidPérez-de la Fuente et al.Early Cretaceous (Albian)El Soplao amber depositA fly belonging to the family Ceratopogonidae.ArostropsisGen et sp nov validYunakov & KirejtshukEoceneBaltic amberMonotypic broad-nosed weevil genus, one species A. groehniAstreptolabisSubfam, Gen et sp nov validEngelAlbianBurmese amberMonotypic earwig subfamily, one species A. ethirosomatiaAtriculicoides szadziewskiiSp. novValidPérez-de la Fuente et al.Early Cretaceous (Albian)El Soplao amber depositA fly belonging to the family Ceratopogonidae.Baltimartyria rasnitsynisp nov validMeyLutetianBaltic amberthe second species in BaltimartyriaBaryshnyalaGen. et sp. novValidIlger & BrauckmannLate Carboniferous (early Bashkirian)Ziegelschiefer FormationA neopteran insect of uncertain systematic placement, assigned to the new family Baryshnyalidae. The type species is B. occulta.Ctenoplectrella phaeton sp novValidGonzalez & Engel LutetianBaltic AmberA leaf cutter beeDasyleptus triassicusSp. novValidBechly & StockarMiddle Triassic (Ladinian)Meride LimestoneA member of Archaeognatha, a species of Dasyleptus.Deinodryinus veltenisp nov ValidGuglielmino & OlmiLutetianBaltic amberA dryinid wasp.Diochus electrussp novvalidChatzimanolis & EngelLutetian Baltic amberfirst valid Staphylininae species from the fossil recordDryinus rasnitsynisp nov validOlmi & GuglielminoBurdigalianDominican ambersecond fossil Dryinus lamellatus group species Eldermyrmex Gen et comb novValid Heterick & ShattuckLutetianBaltic amberFossil Dolichoderine ant, Type species "Iridomyrmex" oblongicepsIberoraphidiasp novvalidJepsen, Ansorge, & JarzembowskiLower Barremian Serra del MontsecA mesoraphidiid snakefly, one species Iberoraphidia dividuaLebanoculicoides excantabrisSp. novValidPérez-de la Fuente et al.Early Cretaceous (Albian)El Soplao amber depositA fly belonging to the family Ceratopogonidae.Lebanoraphidiasp novvalidBechly & Wolf-SchwenningerUpper Neocomian JezzineA mesoraphidiid snakefly, one species Lebanoraphidia nanaLeptolingia calonervissp.ValidShi, Liu, & RenMiddle Jurassic Jiulongshan FormationLeptolingia imminutasp.ValidLiu, Shi, & RenMiddle Jurassic Daohugou BedsThe smallest species known in the family GrammolingiidaeLitholingia ptesasp.ValidShi, Yang, & Ren Middle Jurassic Jiulongshan FormationMickoleitia longimanusOrd., fam., gen. et sp.validStaniczek, Bechly, & GodunkoLower Cretaceous Crato FormationA new genus in the new family Mickoleitiidae and a new insect order Coxoplectoptera. Myanmymargen et sp novvalidHuberAlbian Burmese amberoldest mymarid describedNanotermesGen et sp. novvalidEngel & GrimaldiYpresian Cambay amberA Termitid termiteOrdralfabetixgen et sp.validSzwedoYpresian Oise amberSecond fossil lophopid planthopper from EuropeParastylotermes krishnaiSp. novvalidEngel & GrimaldiYpresian Cambay amberA Stylotermitid termitePlatyperla marquatiSpeciesValidGallego et al.Late TriassicPotrerillos FormationA platyperlid stonefly, a species of Platyperla.Plumalexiusfam, gen et sp.validBrothersTuronian New Jersey ambersister genus to PlumariidaePristomyrmex rasnitsynisp novvalidDlussky & RadchenkoLate Eocene Scandinavian amberA fossil antProstylotermesGen et sp. novvalidEngel & GrimaldiYpresian Cambay amberA Stylotermitid termiteRenphasmaGen. et sp. ValidNel & DelfosseEarly CretaceousYixian FormationA stick insectTermitaradus dominicanusSp novvalidPoinarBurdigalian? Dominican amberA termitaphidid termite bugTitanomyrma lubeiGen, sp, et comb nov.validArchibald, Johnson, Mathewes, & GreenwoodEarly Eocene Messel shalesnew genus for the largest known ants TytthodiplatysGen et sp. novValidEngelAlbianBurmese amberOldest member of the family DiplatyidaeUndulopsychopsisGen et sp. novValidPeng, Makarkin, Wang, & RenLower Barremian to Upper Aptian Yixian FormationA psychopsid silky lacewing, only species U. alexiVetuformosaSub. Fam., Gen., et Sp. NovvalidPoinarAlbianBurmese amberA baetid mayfly. The type species is V. buckleyi, type genus of subfamily VetuformosinaeZophotermesGen et sp. novvalidEngel & SinghYpresian Cambay amberA Rhinotermitid termite
Trilobites Name Novelty Status Authors Age Unit Location Notes ImagesChasbellusGen. et 2 sp. novValidLoch & TaylorEarly OrdovicianBliss Formation House Limestone Tanyard Formation Wilberns FormationA member of Asaphida belonging to the family Symphysurinidae. The type species is C. milleri; genus also includes C. repetskii.Gladiatoria croweiSp. novValidAdrain, McAdams & WestropOrdovician (Floian)Fillmore Limestone Garden City FormationA member of the family Bathyuridae.Gladiatoria harrisiSp. novValidAdrain, McAdams & WestropOrdovician (Floian)Fillmore LimestoneA member of the family Bathyuridae.Gladiatoria nielsenaeSp. novValidAdrain, McAdams & WestropOrdovician (Floian)Fillmore Limestone Garden City FormationA member of the family Bathyuridae.Gladiatoria phoenixiSp. novValidAdrain, McAdams & WestropOrdovician (Floian)Fillmore Limestone Garden City FormationA member of the family Bathyuridae.Gladiatoria reediSp. novValidAdrain, McAdams & WestropOrdovician (Floian)Fillmore Limestone Garden City FormationA member of the family Bathyuridae.Hebediscus williamsiSp. novValidWestrop & LandingEarly CambrianBrigus FormationA member of the family Hebediscidae.Hintzeia parafirmimarginisSp. novValidMcAdams & AdrainOrdovician (Floian)Fillmore Limestone Garden City FormationA member of the family Pliomeridae.Luhops coquusSp. novValidRushtonCambrian (Drumian)Abbey ShalePanisaspisGen. et 6 sp. et comb. novValidMcAdams & AdrainEarly OrdovicianFillmore Limestone Garden City Formation Yellow Hill LimestoneA member of the family Pliomeridae. The type species is P. millardensis; genus also includes new species P. deltaensis, P. loganensis, P. rancherensis, P. sevierensis and P. topscityensis, as well as "Protopliomerops" quattuor Hintze (1953).Protopliomerella bowlesiSp. novValidMcAdams & AdrainOrdovician (Floian)Fillmore LimestoneA member of the family Pliomeridae.Protopliomerella kerouaciSp. novValidMcAdams & AdrainOrdovician (Floian)Fillmore Limestone Garden City Formation Yellow Hill LimestoneA member of the family Pliomeridae.Protopliomerella okeeffeaeSp. novValidMcAdams & AdrainOrdovician (Floian)Fillmore Limestone Garden City Formation Yellow Hill LimestoneA member of the family Pliomeridae.Protopliomerella seegeriSp. novValidMcAdams & AdrainOrdovician (Floian)Fillmore Limestone Garden City FormationA member of the family Pliomeridae.Protopliomerella stegneriSp. novValidMcAdams & AdrainOrdovician (Floian)Fillmore LimestoneA member of the family Pliomeridae.Psalikilopsis newmaniSp. novValidAdrain et al.Ordovician (Floian)Fillmore LimestoneA member of the family Bathyuridae.Psalikilopsis paracuspidicaudaSp. novValidAdrain et al.Ordovician (Floian)Fillmore Limestone Yellow Hill LimestoneA member of the family Bathyuridae.Psalikilopsis redfordiSp. novValidAdrain et al.Ordovician (Floian)Fillmore Limestone Garden City FormationA member of the family Bathyuridae.Symphysurina ethingtoniSp. novValidLoch & TaylorLate Cambrian and Early OrdovicianHouse LimestoneA member of Asaphida belonging to the family Symphysurinidae.Symphysurina straatmannaeSp. novValidLoch & TaylorLate Cambrian and Early OrdovicianBliss Formation House Limestone Wilberns FormationA member of Asaphida belonging to the family Symphysurinidae.
References