Daddy Longlegs (Opiliones) also commonly known as Daddy-longlegs or Harvestmen, is a biological order of the phylum Arthropoda (Arthropods) and class Arachnida (Arachnids).
Acropsopilionidae
Agoristenidae
Assamiidae
Biantidae
Caddidae
Cosmetidae
Dicranolasmatidae
Epedanidae
Escadabiidae
Fissiphalliidae
Gonyleptidae
Guasiniidae
Icaleptidae
Ischyropsalididae
Kimulidae
Metasarcidae
Nemastomatidae
Neogoveidae
Neopilionidae
Nippononychidae
Nipponopsalididae
Ogoveidae
Paranonychidae
Petrobunidae
Pettalidae
Phalangiidae
Phalangodidae
Podoctidae
Protolophidae
Pyramidopidae
Sabaconidae
Samoidae
Sandokanidae
Sclerosomatidae
Sironidae
Stygnidae
Stygnommatidae
Stygnopsidae
Stylocellidae
Synthetonychiidae
Taracidae
Tithaeidae
Travuniidae
Triaenonychidae
Tricommatidae
Troglosironidae
Trogulidae
Zalmoxidae
Opiliones
Holothyrida
Ixodida
Mesostigmata
Palpigradi
Opilioacarida
Pseudoscorpiones
Ricinulei
Sarcoptiformes
Scorpiones
Schizomida
Araneae
Solifugae
Trombidiformes
Uropygi
Amblypygi