Horny Toad

I first encountered these when I lived in Albuquerque as an elementary school child.   I knew them as "horny toads."

Today is the first time I saw one in decades.   My sister, niece, and I were walking at Caspers Wilderness Park taking pictures of butterflies when I saw the Horned Lizard move.   Once we saw it, he/she stayed still unlike those flighty butterflies enabling us to take several pictures.  

Don't they look like they belong in one of those old dinosaur movies?