urosporidae urosporidae the urosporidae are a family of parasitic alveolates in the phylum apicomplexa. urosporidae scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: apicomplexa class: conoidasida subclass: gregarinasina order: eugregarinorida suborder: aseptatorina family: urosporidae genera ceratospora gonospora lithocystis paragonospora pterospora urospora taxonomy there is six genera in this family. history this family was created by léger in 1892. description there are 45 recognised species in this family.