Source : Webster's Revised Unabridged Dictionary (1913)

Unguiculata \Un*guic`u*la"ta\, n. pl. [NL., fr. L. unguiculus a
   finger nail.] (Zo["o]l.)
   An extensive division of Mammalia including those having
   claws or nails, as distinguished from the hoofed animals
   ({Ungulata}).

Source : WordNet®

Unguiculata
     n : in former classifications a major division of Mammalia
         comprising mammals with nails or claws; distinguished
         from hoofed mammals and cetaceans