Alternative spelling: Trilobitadae
Parent taxon: Artiopoda according to R. Lerosey-Aubril et al. 2017
See also Bengtson 1992, Briggs et al. 2008, Kihm and St. John 2007, M'Coy 1849, Mason 1935, McMenamin 2001, Nielsen 2012, Ortega-Hernandez et al. 2013, Phleger 1933, Riccio 1952, Robison and Pantoja-Alor 1968, Sepkoski 2002, Sundberg 1994 and Sundberg and McCollum 1997
Sister taxa: Agnostida, Conciliterga, Falcatamacaris, Kwanyinaspis, Molaria, Phytophilaspis, Retifacies, Squamacula, Trilobitomorpha, Vicissicaudata
Subtaxa: Aglagalia Agraulaeva Aguaraya Aldonaiidae Altajaharpes Amechilus Amgaspididae Ampellatocephalina Anacopodia Antagmidae Antatlaeva Atopidae Auritamidae Avoninidae Batchatiella Bathynotidae Beikedamaspis Bergerolimbus Burlingiidae Carmon Changshaniidae Chinensis Corynexochida Crossoura Curiaspis Cuyanaspis Cyclolenzellina Dalmanites troosti Deltacare Devonocoryphe Edganocare Elleria Elleria morani Ellipsocephaloididae Ellipsuella Entomostracites Erbenochile Eulomella Eutrilobita Fabulaspis Faciura Gentilaspis Gigmpeltis Goycoia Harpetida Helioproetoides Holocephalinidae Howelluella Idiorapha Ignotogregatidae Indigestus Irvingelloides Ishpella Isocolidae Issafenia Ityophoridae Jamrogiidae Jonotus Juriietella Kamlacus Kanfuqingia Leptopilus Libristoma Lichida Llanoaspididae Loxopeltis Lusampa Mapaniidae Megalaspidicus Meneghinella Metapopristis Monkaspididae Moolatrilo Moretaeva Moretarva Namanoiidae Neochilonorria Neomalungia Neotaenicephalus Nepeidae Odontopleurida Ogygiocaridinae Olenida Onchonotopsidae Opisthoparia Orictocara Otekmaspis Otenaspella Paichiashania Paleoaethia Parakingaspidoides Pararania Peculicephalina Perissopyge Phacopida Piliolites Pliomerellus Poculicephalina Polycyrtaspididae Prodamesella Proetida Proparia Pseudoacicaudus Pseudoclelandia Pseudocrecephalaspina Pseudosalteria Pseudosarkia Pseudotermierella Ptyttstrigis Punctaspis Redlichiida Remopleuridacea Repinaella Resseria Resseropsis Rochaeva Sarkiidae Serksia Serksioides Sibiriopeltis Sphaerocare Spizharaspis Stittaspis Sukhanaspis Sunaspididae Taidonurus Taplimella Tazemmourtia Thymurus Toxotis Trapezocephalina Triarthrella Trilobus Tuberaspis Tuyunaspis Ulrickaspis Utiidae Westergardia Winsteria Wuaniidae Zigzuella
Ecology: fast-moving low-level epifaunal carnivore