Petasosella lata is found from the Miocene of Victoria, Australia. The specimen illustrated is from Muddy Creek.
Original description: Selenaria alata Tenison Woods, 1880
Locality: Muddy Creek, Australia
Lectotype: SAM T1546B
Reference: Bock, P.E. & Cook, P.L., 1998. Otionellidae, a new family including five genera of free-living lunulitiform Bryozoa (Cheilostomatida). Memorie di Scienze Geologiche 50: 195-211.