Sphaerexochus

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Sphaerexochus
Temporal range: Middle Ordovician to Late Silurian
Cheiruridae - Sphaerexochus mirus.JPG
Sphaerexochus mirus from Silurian
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Phacopida
Family: Cheiruridae
Genus: Sphaerexochus
Beyrich, 1845

Sphaerexochus is a genus of trilobites from the Middle Ordovician to Late Silurian (468.1 to 418.7 Ma) of Asia, Australia, Europe, and North America.

The type species of the genus is Sphaerexochus mirus Beyrich 1845 (syn. of Sphaerexochus calvus Mc Coy 1846) . Similar and related genus is Pseudosphaerexochus .

Species

References