A few nice animals that are extinct images I found:
Rainbow on the Half Shell
Image by Pommie
This dazzling iridescent fossil of an 80-million-year-old ammonite measuring two feet in diameter was discovered near Lethbridge, Alberta, Canada, (WHOOT!) and is a particularly rare example of an ancient sea creature that went extinct at the same time as most dinosaurs. The spectacular coloration is the result of millions of years of high temperatures and pressures acting on the animal's shell to create a gemstone known as an ammolite.
