Home›Mammal Families›Era First Appeared›CretaceousBrowse ByCretaceousFactsCretaceousSourcesComments (0)Reader Challenges (0)FactsComparisonTaxonomic Rank OrderWell-attested6 1CretaceousFilter Results2 entriesTaxonomic RankAllFamily (2)Common GroupAllInsectivore And Shrew Families (1)Marsupial Families (1)Everyday GroupAllInsectivore And Shrew Families (1)Marsupial Families (1)Geographic DistributionAllCanada (1)North America (1)South America (1)United States (1)Living or ExtinctAllYes (2)Show ResultsBrowseCompareSelect all 2DidelphidaeCretaceousSoricidaeCretaceousSources1. Wikipedia: Taxonomic ranktier 2WikipediaTaxonomic rank, Fundamental ranks section, rank sequence sentence, mammal familiesQuote, Taxonomic rank, Fundamental ranks section, rank sequence sentence, mammal 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.