From 2000 A.D. #17 (1977) (click to embiggen to full mind-blowingness):
Aside from the Brian Bolland-y goodness, the most stunning thing is that this scene actually happens!!
(OK, that panel is actually from the next issue, but it's the one with the explanation, so I went with that one. Sue me.)
The series, Flesh, ran through the first 19 issues of 2000 A.D., and was about time-traveling space cowboys who went to the past to harvest dinosaurs for their delicious flesh, because all the animals we usually eat were extinct by the 23rd century, and I guess Soylent Green never caught on. No, I'm not making any of that up.
Oh, and a clone of one of those dinosaurs ended up becoming a recurring Judge Dredd villain, and after the clone (named Satanus) was killed, his supporters staged a demonic invasion of Mega-City One in order to free his soul from Hell. Again, I'm not making any of that up.
Man, British comics are under-rated. Extraordinarily odd, but underrated...