Trilobita - Asaphida - Asaphidae
Alternative spelling: Basiliella
Parent taxon: Basilicus according to Z. Zhou and R. A. Fortey 1986
See also Harrington and Leanza 1957, Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Basilicus asper, Basilicus jinlini, Basilicus laeviculus, Basilicus mckeei, Basilicus tyrannus, Parabasilicus typicalis, Mekynophrys nanna
Subtaxa: Basilicus (Basiliella) destombesi Basilicus (Basiliella) illarensis Basilicus (Basiliella) whittingtoni Basiliella karmbergensis
Distribution:
• Chazyan of Canada (1: Quebec collection), United States (3: New York)
• Whiterockian of United States (3: New York, Vermont)
• Fennian of France (1)
• Klabava of France (1)
• Arenig of China (5), France (1)
• Dawan of China (1)
• Ordovician of Argentina (2), Australia (1), China (11), Morocco (2), North Korea (1), the Russian Federation (1), Spain (1), United States (9: Illinois, Iowa, Iowa/Wisconsin, Minnesota, New York)
• Tremadoc of Argentina (1), Bolivia (1), China (3), Colombia (1)
Total: 50 collections including 52 occurrences