Gymnolaemata - Cheilostomata - Petraliidae
Parent taxon: Ascophora according to R. S. Bassler 1953
See also Brown 1952, Brown 1958, Canu and Bassler 1935 and Di Martino and Taylor 2015
Sister taxa: Acanthostega, Basyaylella, Bifaxariidae, Catenicelloidea, Celleporariidae, Cleidochasmatidae, Conescharellinidae, Crepidacanthidae, Euthyrisellidae, Euthyroididae, Fusicellariidae, Hippoporinidae, Hippothooidea, Hippothoomorpha, Lekythoporidae, Lepraliomorpha, Mucronellidae, Myriozoidae, Nephroporidae, Onchoporidae, Parmulariidae, Phylactellidae, Phylactelliporidae, Platyglenidae, Prostomariidae, Reteporidae, Sertellidae, Spiroporinidae, Stomachetosellidae, Tetraplariidae, Tubucellariidae
Subtaxa: Coleopora Discopora Hippopetraliella Orbiculipora Pachycleithonia Petralia Petraliella Robertsonidra Sinupetraliella Utinga
Type: Petralia
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Costa Rica (2 collections), Panama (1), United States (2: Florida)
• Pliocene of New Zealand (3), Panama (1)
• Miocene to Oligocene of Australia (6)
• Miocene of Australia (2), India (2), Indonesia (1), New Zealand (1)
• Oligocene to Miocene of Australia (3)
Total: 24 collections including 32 occurrences