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†order Agnostida Salter 1864 (trilobite)

Trilobita

PaleoDB taxon number: 19165

Parent taxon: Trilobita according to H. B. Whittington et al. 1997

Sister taxa: Abakanopleura, Acanthocephalus, Acantholenus, Acastoidea, Acrohybus, Adelogonus, Aglagalia, Agraulaeva, Aguaraya, Aidarella, Alomataspis, Altajaharpes, Altiplanelaspis, Amechilus, Amginouyia, Ampellatocephalina, Anacopodia, Antagmopleura, Antatlaeva, Atratebia, Avalonia, Avascutellum, Barklyella, Bathynotellus, Bathynotidae, Beikedamaspis, Bergerolimbus, Bicornipyge, Blayacina, Bondarevites, Brevitermierella, Bridgeia, Cambrunicornia, Carmon, Catadoxides, Cermatops, Chakasskia, Chinensis, Chondroparia, Conoides, Cornovica, Corynexochida, Costonia, Crossoura, Crucicephalus, Curiaspis, Cuyanaspis, Cyclolenzellina, Dalmanites troosti, Deltacare, Edganocare, Ellipsuella, Ellsaspis, Endoaspis, Entomostracites, Entsyna, Eosaukia, Esseigania, Eulomella, Eutrilobita, Fabulaspis, Folliceps, Fritzaspis, Galahetes, Gelasene, Gentilapsis, Gigmpeltis, Gigoutella, Giordanella, Gogoella, Goycoia, Hamashania, Hapalopleuridae, Hercantyx, Hicksia, Howelluella, Indigestus, Indiligens, Ishpella, Issafenia, Issafeniella, Iveria, Iwayaspis, Jiulongshania, Jonotus, Jubileia, Judaiella, Juriietella, Kamlacus, Kanfuqingia, Kazellina, Keeleaspis, Kerbinella, Kinsabia, Knechtelia, Kolpura, Koraipsis, Kujandina, Latilorenzella, Latoucheia, Leptopilus, Levisia, Libristoma, Lichida, Liriamnica, Lomsucaspis, Lotosoides, Loxonepea, Loxopeltis, Lusampa, Mannschreckia, Mataninella, Mecophrys, Megalaspidicus, Meisterella, Meneghinella, Microdiscus, Missisquoiidae, Moretarva, Namanoiidae, Naraoiida, Nehanniaspis, Nelsonia, Neomalungia, Ninaspis, Norina, Odontopleurida, Olenellida, Opisthoparia, Ordosiidae, Orictocara, Orienturus, Otekmaspis, Otenaspella, Ourikaia, Oxygonaspis, Paichiashania, Palaeolentus, Palmeraspis, Paraplagiura, Paraplesiograulos, Pararania, Peculicephalina, Perissopyge, Phacopida, Piliolites, Planolimbus, Poculicephalina, Polycyrtaspididae, Priceaspis, Proetida, Proparia, Pseudoacicaudus, Pseudoclelandia, Pseudocrecephalaspina, Pseudoliostracina, Pseudosalteria, Pseudotermierella, Ptychopariida, Ptyttstrigis, Pyraustocranium, Qijiangia, Redlichaspis, Redlichiida, Remopleuridacea, Resseria, Resseropsis, Rochaeva, Rowia, Sailycaspis, Sarkiidae, Sectigena, Sekwiaspis, Selenocoryphe, Serksia, Serksioides, Sibiriopeltis, Smeathenia, Sphaerocare, Spizharaspis, Stittaspis, Sunaspididae, Tadakoustia, Taidonorus, Taplimella, Tarimella, Tazemmourtia, Thymurus, Tongxingaspis, Toxotis, Trapezocephalina, Trinia, Tuyunaspis, Ullaspis, Ulrickaspis, Validaspis, Variopelta, Volonellus, Whittardolithus, Winsteria, Zigzuella

Subtaxa: Agnostidae, Agnostina, Agnostogonus, Agnostoidea, Aistagnostus, Allobodochus, Ammagnostidae, Aotagnostus, Armagnostus, Blystagnostus, Calodiscidae, Ceragnostus, Chatkalagnostus, Chelediscus, Clavagnostidae, Condylopygidae, Cristagnostus, Delagnostus, Dicerodiscus, Dignagnostus, Dipharus, Diplagnostidae, Dividuagnostus, Dolichoagnostus, Egyngolia, Eodiscidae, Eodiscina, Euagnostus, Formagnostus, Geragnostidae, Glaberagnostus, Glyptagnostidae, Grandagnostus, Granuloagnostus, Gratagnostus, Hastagnostus, Hebediscidae, Hebediscina, Itagnostus, Jinghediscus, Kiskinella, Kymagnostus, Lavsanodiscus, Lenadiscus, Litometopus, Megagnostus, Meniscuchus, Metagnostidae, Micagnostus, Miraculaspis, Monexagnostus, Ninadiscus, Oodiscus, Parapagetia, Peronopsidae, Phalacromidae, Phoidagnostus, Pleurinodus, Pseudocobboldia, Ptychagnostidae, Rhodotypiscus, Semadiscus, Skryjagnostus, Sphaeragnostidae, Spinagnostidae, Stigmadiscus, Tasagnostus, Tchernyshevioides, Triangulina, Tsunyidiscidae, Valenagnostus, Weymouthiidae, Xyoeax, Yukonia, Yukonides, Yukoniidae

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Ecology: slow-moving nektonic suspension feeder