14 : Chattian taxonomic families|Aquitanian taxonomic families|Burdigalian taxonomic families|Langhian taxonomic families|Serravallian taxonomic families|Tortonian taxonomic families|Messinian taxonomic families|Zanclean taxonomic families|Piacenzian taxonomic families|Gelasian taxonomic families|Calabrian taxonomic families|Ionian taxonomic families|Tarantian taxonomic families|Holocene taxonomic families