See question title. After doing some looking around on my own I haven't found much so I figured I'd ask some experts.

  • $\begingroup$ What kind of skeleton? $\endgroup$
    – J. Musser
    Jun 21 '14 at 23:33
  • $\begingroup$ what he's asking is if you are talking about bones or including chitin (insects and things like crabs and shrimps) or other exoskeletal structures? $\endgroup$
    – shigeta
    Jun 22 '14 at 0:19
  • 1
    $\begingroup$ Shall we include the cytoskeleton? $\endgroup$
    – canadianer
    Jun 22 '14 at 18:34
  • $\begingroup$ further information en.wikipedia.org/wiki/Smallest_organisms $\endgroup$ Jun 23 '14 at 4:34
  • $\begingroup$ The smallest vertebrate is the male Photocorynus spiniceps anglerfish at 6.2-7.3 mm, females are over 50 mm. Schindleria brevipinguis is 6.5-10 mm, and Paedophryne amauensis is 7.7 mm. Paedocypris progenetica is 7.9-10.3 mm. $\endgroup$ Nov 30 '20 at 19:53

The smallest vertebrate (if that's what you mean; there are many invertebrates with endoskeletons that are not made of bone) is Paedophryne amanuensis, a Papua New Guinea frog that's about 7 mm long.


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