Home›Other Invertebrate Families›Era First Appeared›CambrianBrowse ByCambrianFactsCambrianSourcesComments (0)Reader Challenges (0)FactsComparisonTaxonomic Rank OrderWell-attested6 1CambrianFilter Results2 entriesTaxonomic RankAllFamily (2)Living or ExtinctAllNo (1)Yes (1)Show ResultsBrowseCompareSelect all 2OrthidaeCambrianStrabopidaeCambrianSources1. 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.