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:
- Devonian
Colombia (Floresta Formation, Altiplano Cundiboyacense), the Czech Republic, Morocco, United States (Alaska, Iowa, Oklahoma), and Uzbekistan
- Silurian
Canada (Northwest Territories, Nunavut, Ontario), the United Kingdom, and the United States (Indiana, New York, Tennessee)
- Ordovician
Sweden, and the United States (Illinois, Kentucky, Missouri)
References
Further reading
- Richard Fortey, Trilobite: Eyewitness to Evolution
External links
- Cyphasis on Trilobites.info
