Phenomenal preservation! Meet #Sclerocephalus, “hard head,” a beautifully preserved individual from Germany I saw at the Tucson gem and mineral show. So... what the heck is a Sclerocephalus? I always thought it was a kind of #Eryops cousin, closely related to #Onchiodon. Research in the 00s revealed it is actually a, wait for it, a basal #stereospondylomorph, a kind of #temnospondyl #amphibian. The key word here is amphibian, these animals lived in water and could wander a bit on land. They were