When I was a kid I remember imagining that the dinosaurs managed to create an advanced civilization, reaching the moon, creating cities, tried to harvest astero

When I was a kid I remember imagining that the dinosaurs managed to create an advanced civilization, reaching the moon, creating cities, tried to harvest asteroids but accidentally wiped themselves out after a major mistake, eliminating the evidence for their civilization in the process. This was after reading The Crucible of Time by Brunner (one of my favourite books)