[wwosik]

I believe that, for once, formally you don't need MA/MSc to get a PhD.

Another example could be http://en.wikipedia.org/wiki/Stefan_Banach

[jdotjdot]

You often don't need MA/MS to get a PhD. Many PhD programs in the US grant them as a matter of course "along the way" during PhD programs, with them really not mattering so much and students obviously applying to the program without the Master's under their belts already.

[arethuza]

I don't think a Masters has ever been a requirement in the UK - I started a PhD without one and that was fairly common (at least in the 80s/90s).