No mention of Ballard? Or any of the New Worlds "New Wave" era writers?
You can also probably toss in Delany, Spinrad, much of Dangerous Visions, and then go on from there.
The movement, if there was one, is best characterised by a shift from puzzle stories to more complex fiction, with some authors crossing the divide, like Silverberg and Zelazny in the US.
However - decades (and probably puberty) sit in between me and my last reading of his work so this is probably an unreliable viewpoint.