Asaphidae

Most Asaphinae are characteristic of Baltica. Isotelinae genera are concentrated in Laurentia. The genera of Nobiliasaphinae are distributed in tropical Gondwana and South China. The genera of Ogygiocaridinae occur in Avalonia, Gondwana and Baltica. and were already fairly common during this time, when 14 genera are known from Australia, North- and South-China. The last members of the family died-out at the end of the Ordovician. '' fossil from Mila formation, Ordovician period, Damghan, Iran == Subdivisions and genera ==

More than 20 subfamilies have been named within the Asaphidae, but very few of the subfamily names are in regular use. • Anataphrus • Araiocaris • Asaphellus • Asaphus • Atopasaphus • Aulacoparia • Aulacoparina • Australopyge • Baltiites • Banqiaoites • Basilicus • Bellefontia • Birmanitella • Birmanites • Bohemopyge • Borogothus • Brachyaspis • Branisaspis • Burminresia • Charabaia • Chengkouella • Dubovikites • Ectenaspis • Emanuelaspis • Emanuelina • Eoasaphus • Eoisotelus • Erdelia • Estoniites • Fuyunia • Gerasaphes • Gog • Gogiura • Golasaphus • Griphasaphus • Guohongjunia • Hazarania • Heraspis • Hoekaspis • Homalopyge • Hunjiangites • Hunnebergia • Huochengia • Iduia • Isabelinia • Isotella • Isoteloides • Isotelus • Isyrakella • Isyrakopeltis • Kainisiliellina • Kayseraspis • Klabavia • Kobayashia • Lachnostoma • Lamanskytes • Lapidaria • Leningradites • Liomegalaspides • Lisogorites • Liushuicephalus • Lonchobasilicus • Lycophron • Megalaspidella • Megalaspides • Megasaphus • Megatemnoura • Megistaspis • Merlinia • Metaptychopyge • Metayuepingia • Mioptychopyge • Mischynogorites • Nahannia • Neopeltis • Nerudaspis • Nileoides • Ningkianites • Niobe • Niobella • Niobides • Niobina • Nobiliasaphus • Norasaphites • Norasaphus • Norinia • Notopeltis • Ogmasaphus • Ogyginus • Ogygiocarella • Ogygiocaris • Ogygitella • Ogygites • Ogygitoides • Onchometopus • Parabellefontia • Paramegalaspis • Paraptychopyge • Paratamdaspis • Parayuepingia • Penchiopsis • Platyptychopyge • Plectasaphus • Plesiyuepingia • Popovkiaspis • Popovkites • Praecoparia • Presbynileus • Priceaspis • Proasaphus • Promegalaspides • Protopresbynileus • Protoptychopyge • Proxiniobe • Pseudoasaphinus • Pseudoasaphoides • Pseudoasaphus • Pseudobasilicoides • Pseudobasilicus • Pseudobasiliella • Pseudobasiloides • Pseudogriphasaphus • Pseudogygites • Pseudomegalaspis • Pseudoptychopyge • Pseudoptyocephalus • Psilocephalina • Psilocephalops • Ptychopyge • Ptyocephalus • Sanbernardaspis • Shergoldina • Stegnopsis • Stenorhachis • Suriaspis • Tchukeraspis • Thysanopyge • Trigonocerca • Trigonocercella • Tsaidamaspis • Valdaites • Vogdesia • Volchovites • Xenasaphus • Xenostegium • Xinanocephalus • Yuepingioides • Zhenganites • Zoraspis • Zuninaspis ==References==