Cyphaspis

Cyphaspis is a genus of small trilobite that lived from the Late Ordovician to the Late Devonian. Fossils have been found in marine strata in what is now Europe, Africa and North America. Various species had a compact body, and a large, bulbous glabellum. Many species had long spines arranged similarly to closely related genera, such as "Otarian", "Otarionella", "Chamaeleoaspis", and "Namuropyge".
Species.
The following species in the genus "Cyphaspis" have been described:
Distribution.
Fossils of "Cyphaspis" have been found in:
Colombia (Floresta Formation, Altiplano Cundiboyacense), the Czech Republic, Morocco, United States (Alaska, Iowa, Oklahoma), and Uzbekistan
Canada (Northwest Territories, Nunavut, Ontario), the United Kingdom, and the United States (Indiana, New York, Tennessee)
Sweden, and the United States (Illinois, Kentucky, Missouri)