Siphonicytara irregularis is recorded from the Late Oligocene and Miocene of Victoria.
Original description: Siphonicytara irregularis Bock & Cook, 2001
Locality: Miocene, Bairnsdale, Victoria.
Type specimen: NV P10200
Reference: Bock, Philip E., & Cook, Patricia L., 2001. A review of Australian Siphonicytara Busk (Bryozoa: Cheilostomatida).
Records of the Western Australian Museum, 20: 307-322.