Home›Reptile Families›Era First AppearedBrowse ByEra First AppearedFactsEra First AppearedSourcesComments (0)Reader Challenges (0)FactsComparisonTaxonomic Rank OrderWell-attested6 1Era First AppearedTriassicEra First Appeared1 entryJurassicEra First Appeared2 entriesCretaceousEra First Appeared27 entriesPaleogeneEra First Appeared15 entriesNeogeneEra First Appeared4 entriesQuaternaryEra First Appeared5 entriesSources1. Wikipedia: Taxonomic ranktier 2WikipediaTaxonomic rank, Fundamental ranks section, rank sequence sentence, reptile familiesQuote, Taxonomic rank, Fundamental ranks section, rank sequence sentence, reptile familieskingdom, phylum or division, class, order, family, genus, and speciesView the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.