46 : Monogeneric fish families|Shark families|Taxa named by John Edward Gray|Heterodontidae|Toarcian taxonomic families|Aalenian taxonomic families|Bajocian taxonomic families|Bathonian taxonomic families|Callovian taxonomic families|Oxfordian taxonomic families|Kimmeridgian taxonomic families|Tithonian taxonomic families|Berriasian taxonomic families|Valanginian taxonomic families|Hauterivian taxonomic families|Barremian taxonomic families|Aptian taxonomic families|Albian taxonomic families|Cenomanian taxonomic families|Turonian taxonomic families|Coniacian taxonomic families|Santonian taxonomic families|Campanian taxonomic families|Maastrichtian taxonomic families|Danian taxonomic families|Selandian taxonomic families|Thanetian taxonomic families|Ypresian taxonomic families|Lutetian taxonomic families|Bartonian taxonomic families|Priabonian taxonomic families|Rupelian taxonomic families|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