PaleoDB taxon number: 21896
Full reference: A. V. Rozova. 1968. Biostratigrafiya i trilobity verkhnego Kembriya i nizhnego Ordovika severo-zapada Sibirskoy Platformy [Biostratigraphy and trilobites of the Upper Cambrian and Lower Ordovician of the northwestern Siberian platform]. Trudy Instituta Geologii i Geofiziki, Sibirskoye Otdeleniye 36:1-195
Parent taxon: Trilobita according to J. J. Sepkoski 2002
Sister taxa: Abakanopleura, Acantholenus, Acrohybus, Aglagalia, Agnostida, Agraulaeva, Aguaraya, Aidarella, Aldonaiidae, Alomataspis, Altajaharpes, Amechilus, Amgaspididae, Amginouyia, Ampellatocephalina, Anacopodia, Anomocarellidae, Antagmidae, Antagmopleura, Antatlaeva, Asaphida, Atopidae, Aulacopleurida, Auritamidae, Avalonia, Avascutellum, Avoninidae, Barklyella, Bathynotellus, Bathynotidae, Beikedamaspis, Bergerolimbus, Bicornipyge, Blayacina, Bondarevites, Brevitermierella, Bridgeia, Carmon, Catadoxides, Chakasskia, Changshaniidae, Chinensis, Chondroparia, Conoides, Cornovica, Corynexochida, Costonia, Crossoura, Curiaspis, Cuyanaspis, Cyclolenzellina, Dalmanites troosti, Deltacare, Dikelocephalidae, Edganocare, Ellipsocephaloididae, Ellipsuella, Ellsaspis, Entomostracites, Eodiscida, Eosaukia, Erbenochile, Esseigania, Eulomella, Eutrilobita, Fabulaspis, Folliceps, Fritzaspis, Galahetes, Gentilapsis, Gigmpeltis, Gigoutella, Giordanella, Goycoia, Hamashania, Harpetida, Harpida, Harpididae, Hercantyx, Hicksia, Holocephalinidae, Howelluella, Ignotogregatidae, Indigestus, Indiligens, Ishpella, Isocolidae, Issafenia, Issafeniella, Ityophoridae, Jamrogiidae, Jonotus, Jubileia, Judaiella, Juriietella, Kamlacus, Kanfuqingia, Kerbinella, Kinsabia, Knechtelia, Kolpura, Kujandina, Leptopilus, Levisia, Libristoma, Lichida, Liriamnica, Llanoaspididae, Lomsucaspis, Lotosoides, Loxonepea, Loxopeltis, Lusampa, Mannschreckia, Mapaniidae, Mataninella, Mecophrys, Megalaspidicus, Megalurites, Meisterella, Meneghinella, Metapopristis, Missisquoiidae, Monkaspididae, Moretarva, Namanoiidae, Naraoiida, Neomalungia, Nepeidae, Ninaspis, Norina, Odontopleurida, Ogygiocaridinae, Olenellida, Olenida, Onchonotopsidae, Opisthoparia, Ordosiidae, Orictocara, Orienturus, Otekmaspis, Otenaspella, Oxygonaspis, Paichiashania, Palaeolentus, Paleoaethia, Palmeraspis, Paraplagiura, Paraplesiograulos, Pararania, Peculicephalina, Perissopyge, Phacopida, Phylacteridae, Piliolites, Planolimbus, Pliomerellus, Poculicephalina, Polycyrtaspididae, Proetida, Proparia, Pseudoacicaudus, Pseudoclelandia, Pseudocrecephalaspina, Pseudoliostracina, Pseudosalteria, Pseudotermierella, Ptyttstrigis, Punctaspis, Redlichaspis, Redlichiida, Remopleuridacea, Repinaella, Resseria, Resseropsis, Rochaeva, Rowia, Sailycaspis, Sarkiidae, Scutelluidae, Sectigena, Selenocoryphe, Serksia, Serksioides, Sibiriopeltis, Smeathenia, Sonoraspis, Sphaerocare, Spizharaspis, Stittaspis, Sunaspididae, Tadakoustia, Taidonorus, Taplimella, Tazemmourtia, Thymurus, Tongxingaspis, Toxotis, Trapezocephalina, Trilobus, Trinia, Tuyunaspis, Ullaspis, Ulrickaspis, Utiidae, Validaspis, Volonellus, Westergardia, Whittardolithus, Winsteria, Wuaniidae, Zigzuella
Subtaxa: Entsyna entsynica
Type: Entsyna entsynica
Ecology: fast-moving low-level epifaunal carnivore