Gastropoda - Patellogastropoda - Patellidae
Parent taxon: Patellidae according to J.-M. Pacaud and J. Le Renard 1995
See also Knight et al. 1960
Sister taxon: Scutellastra
Subtaxa: Berlieria Cymbula Helcion Patella
Ecology: facultatively mobile epifaunal grazer
Distribution:
• Quaternary of Angola (1 collection), Australia (3), Chile (1), France (1), Iceland (2), Italy (1), Morocco (8), Namibia (4), New Zealand (1), Pitcairn (1), Portugal (10), Saudi Arabia (4), South Africa (11), Spain (11)
• Pliocene to Pleistocene of South Africa (1)
• Pliocene of Chile (1), Greece (2), Holy See (Vatican City State) (1), South Africa (4), Spain (3)
• Miocene of Austria (2), Greece (1), Indonesia (1), Italy (1), Poland (1), South Africa (1)
• Oligocene of Italy (1)
• Eocene of France (5), Romania (1), the United Kingdom (1)
• Paleocene of Belgium (1), Denmark (2), France (1), Greenland (3), Poland (1), United States (1: California)
• Cretaceous of Cameroon (2), France (1), Germany (2), Japan (3), New Zealand (3), the Russian Federation (4), Switzerland (1), United States (5: California, Delaware, Texas)
• Jurassic of France (4), Greenland (1), Italy (1), Svalbard and Jan Mayen (1), Tanzania (4)
• Triassic of Bosnia and Herzegovina (1), China (2), Indonesia (3), Italy (6), New Zealand (3), United States (3: Alaska, California)
• Permian of Germany (1), Japan (1), United States (1: Texas)
Total: 148 collections including 220 occurrences