Home›Reptile Families›Living or Extinct›YesBrowse ByYesLiving or extinct separates a taxon's surviving members from those known only from fossils. Wikipedia notes "the 41 officially recognized extant Felidae species" live today, while the "saber-toothed cats" of the extinct subfamily Machairodontinae, including the famous saber-toothed tiger, do not. This dimension lets a visitor tell a still-living branch of a family tree from an extinct one.FactsYesSourcesComments (0)Reader Challenges (0)FactsComparisonTaxonomic Rank OrderWell-attested6 1YesFilter Results86 entriesCommon GroupAllBlind Snake Families (Scolecophidia) (5)Crocodilian Families (2)Gecko Families (7)Iguanian Lizard Families (Iguania) (14)Other Lizard Families (17)Snake Families (Serpentes) (27)Turtle and Tortoise Families (Testudines) (14)Geographic DistributionAllCentral and South America (the six caiman species) (1)Found on every continent except Antarctica (1)Taxonomic RankAllFamily (86)Everyday GroupAllBlind Snake Families (Scolecophidia) (5)Crocodilian Families (2)Gecko Families (7)Iguanian Lizard Families (Iguania) (14)Other Lizard Families (17)Snake Families (Serpentes) (27)Turtle and Tortoise Families (Testudines) (14)Show ResultsBrowseCompareSelect all 86AcrochordidaeYesAgamidaeYesAlligatoridaeYesAlopoglossidaeYesAnguidaeYesAniliidaeYesAnniellidaeYesAnolidaeYesAnomalepididaeYesAnomochilidaeYesAtractaspididaeYesBoidaeYesBolyeriidaeYesCarettochelyidaeYesCarphodactylidaeYesChamaeleonidaeYesChelidaeYesCheloniidaeYesChelydridaeYesColubridaeYesCordylidaeYesCorytophanidaeYesCrocodylidaeYesCrotaphytidaeYesCyclocoridaeYesCylindrophiidaeYesDermatemydidaeYesDermochelyidaeYesDibamidaeYesDiplodactylidaeYesDiploglossidaeYesElapidaeYesEmydidaeYesEublepharidaeYesGekkonidaeYesGeoemydidaeYesGerrhopilidaeYesGerrhosauridaeYesGymnophthalmidaeYesHelodermatidaeYesHomalopsidaeYesHoplocercidaeYesIguanidaeYesKinosternidaeYesLacertidaeYesLamprophiidaeYesLanthanotidaeYesLeiocephalidaeYesLeiosauridaeYesLeptotyphlopidaeYesLiolaemidaeYesLoxocemidaeYesMicrelapidaeYesOpluridaeYesPareidaeYesPelomedusidaeYesPhrynosomatidaeYesPhyllodactylidaeYesPlatysternidaeYesPodocnemididaeYesPolychrotidaeYesProsymnidaeYesPsammodynastidaeYesPsammophiidaeYesPseudaspididaeYesPseudoxyrhophiidaeYesPygopodidaeYesPythonidaeYesScincidaeYesShinisauridaeYesSphaerodactylidaeYesTeiidaeYesTestudinidaeYesTrionychidaeYesTropidophiidaeYesTropiduridaeYesTyphlopidaeYesUropeltidaeYesVaranidaeYesViperidaeYesXantusiidaeYesXenodermidaeYesXenopeltidaeYesXenophidiidaeYesXenosauridaeYesXenotyphlopidaeYesSources1. 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.