I wonder if Psygnosis is an offshoot or re-organization of a studio that used to do a lot of record album covers back in the 70's-80's called Hipgnosis. They did many covers for English metal & rock bands. The one above with the petrified Tyrannosaur skull was originally the cover of Blue Oyster Cult's "Cultosaurus Erectus" album. The influence of Roger Dean, who did the Yes album covers, is obviously very heavily felt in this artwork, they seem to use his style quite a lot.
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