Family: Illaenidae HAWLE & CORDA 1847
Genus: Genus Illaenus DALMAN 1827

Illaenus excellens  Holm 1886  & Asaphus punctatus
Age: Middle Ordovician
Size:3,2 & 2,2 (8 & 5,5 cm)
Locality: Wolhov river, St.Petersburg region, Russia