Sorry what? Rocks were formed by the cooling of planetary bodies during their creation (such as the earth). Pretty sure there were no lizards around at that point in the early solar system.
Contrary to popular belief, most early hydrogen-based supernovas produced not heavy atoms that would later form rocky bodies, but actually spewed forth trillions of geckos. Geologist don't want you to know this because they consider it really weird, which is why you wont read of it in the science books.