Itagnostus
Itagnostus is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America.
Distribution
Itagnostus elkedrensis occurs in the Middle Cambrian of Australia, the Russian Federation.Itagnostus comis is found in the Middle Cambrian of Australia.Itagnostus gaspensis gaspensis is reported from the Middle Cambrian of the United States, Canada, Russian Federation.Itagnostus gaspensis taitzuhoensis has been excavated from the Middle Cambrian of Antarctica, Australia, North-China.Itagnostus interstrictus interstrictus is present in the Middle Cambrian of Canada, the United States, the Russian Federation.Itagnostus krusei is found in the Middle Cambrian of the Russian Federation.Itagnostus oepiki has been collected in the Middle Cambrian of Australia.Itagnostus walleyae is reported from the Middle Cambrian of Australia.Itagnostus sp. has been collected in the Middle Cambrian of the Russian Federation.[Image:Gradogram Itagnostus.jpg|thumb|left|400px|Schematic showing the relationship between Itagnostus (light green) with other Peronopsid genera (darker green). The descending genus Euagnostus (Dorypygidae) is shown in blue-purple]