SUNDAY, MAY 17, 2026

Question: What is the name of Arizona’s official state fossil, a prehistoric creature discovered near St. Johns?

Answer: Araucarioxylon arizonicum

In 1988, the Arizona state legislature designated the petrified wood of Araucarioxylon arizonicum, a prehistoric conifer, as the Arizona state fossil. Arizona is well known for its vast petrified forest, part of which lies within the bounds of the Petrified Forest National Park.