Death is a proto-punk Detroit band that's making the rounds right now. They started out in 1971 as an R&B and then switched to heavy metal after a Alice Cooper concert. Punk is how we'd describe their sound today, but it didn't really exist then. They released a 7", but were probably considered just too far out there.
I think there would be many out there that would say that this band might have invented this sound, but in truth, they escaped detection until they released everything they recorded in 2009. Who knows what kind of influence they would have had if the Ramones, the Sex Pistols, or Buzzcocks, et. al. had heard them first. Hell, for breaking boundaries, this might even take the steam out of Bad Brains a bit.
The fact that these similar inventions happen in tandem around the world in the space of a decade (without the communication technology we have today) makes you think we're much more interconnected than we'd like to think.