Home›Other Invertebrate Families›Era First AppearedBrowse ByEra First AppearedFactsEra First AppearedSourcesComments (0)Reader Challenges (0)FactsComparisonTaxonomic Rank OrderWell-attested6 1Era First AppearedCambrianEra First Appeared2 entriesCarboniferousEra First Appeared2 entriesJurassicEra First Appeared1 entryCretaceousEra First Appeared5 entriesPaleogeneEra First Appeared2 entriesNeogeneEra First Appeared1 entrySources1. Wikipedia: Taxonomic ranktier 2WikipediaTaxonomic rank, Fundamental ranks section, rank sequence sentence, other invertebrate familiesQuote, Taxonomic rank, Fundamental ranks section, rank sequence sentence, other invertebrate 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.